Malware analysis Setup.exe Malicious activity | ANY.RUN

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File name:	Setup.exe
Full analysis:	https://app.any.run/tasks/fa1894ec-ef68-43fb-bf28-f4f45d930f2a
Verdict:	Malicious activity
Analysis date:	January 22, 2025, 01:38:05
OS:	Windows 10 Professional (build: 19045, 64 bit)
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32+ executable (GUI) x86-64, for MS Windows, 8 sections
MD5:	974930CE3F894F494C573FB9E7EE0076
SHA1:	07819B738FAFF62A2724DFCF347860AAAC922A5C
SHA256:	FCC862DB236CCD85A0E8184C72449A657FE31BB90F2DBD650FFF158260622D7D
SSDEEP:	98304:Nrhz972Ytp74dEIRm1otdlqZhY40U+DgLhqO0KkMVqw/DhXtr2MiJK4uFAwN8sgj:yjlNjlj

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

Launch configuration

Task duration:: 120 seconds
Heavy Evasion option:
Network geolocation:: off
Additional time used:: none
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 11.3636.19041.0
Adobe Acrobat (64-bit) (23.001.20093)
Adobe Flash Player 32 NPAPI (32.0.0.465)
Adobe Flash Player 32 PPAPI (32.0.0.465)
CCleaner (6.20)
FileZilla 3.65.0 (3.65.0)
Google Chrome (122.0.6261.70)
Google Update Helper (1.3.36.51)
Java 8 Update 271 (64-bit) (8.0.2710.9)
Java Auto Updater (2.8.271.9)
Microsoft Edge (122.0.2365.59)
Microsoft Edge Update (1.3.185.17)
Microsoft Office Professional 2019 - de-de (16.0.16026.20146)
Microsoft Office Professional 2019 - en-us (16.0.16026.20146)
Microsoft Office Professional 2019 - es-es (16.0.16026.20146)
Microsoft Office Professional 2019 - it-it (16.0.16026.20146)
Microsoft Office Professional 2019 - ja-jp (16.0.16026.20146)
Microsoft Office Professional 2019 - ko-kr (16.0.16026.20146)
Microsoft Office Professional 2019 - pt-br (16.0.16026.20146)
Microsoft Office Professional 2019 - tr-tr (16.0.16026.20146)
Microsoft Office Professionnel 2019 - fr-fr (16.0.16026.20146)
Microsoft Office профессиональный 2019 - ru-ru (16.0.16026.20146)
Microsoft OneNote - en-us (16.0.16026.20146)
Microsoft Update Health Tools (3.74.0.0)
Microsoft Visual C++ 2013 Redistributable (x64) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x64 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x64 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2015-2022 Redistributable (x64) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2015-2022 Redistributable (x86) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2022 X64 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X64 Minimum Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Minimum Runtime - 14.36.32532 (14.36.32532)
Mozilla Firefox (x64 en-US) (123.0)
Mozilla Maintenance Service (123.0)
Notepad++ (64-bit x64) (7.9.1)
Office 16 Click-to-Run Extensibility Component (16.0.15726.20202)
Office 16 Click-to-Run Licensing Component (16.0.16026.20146)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15928.20198)
PowerShell 7-x64 (7.3.5.0)
Skype version 8.104 (8.104)
Update for Windows 10 for x64-based Systems (KB4023057) (2.59.0.0)
Update for Windows 10 for x64-based Systems (KB4023057) (2.63.0.0)
Update for Windows 10 for x64-based Systems (KB4480730) (2.55.0.0)
Update for Windows 10 for x64-based Systems (KB5001716) (8.93.0.0)
VLC media player (3.0.11)
WinRAR 5.91 (64-bit) (5.91.0)
Windows PC Health Check (3.6.2204.08001)

Hotfixes

Client LanguagePack Package
DotNetRollup
DotNetRollup 481
FodMetadata Package
Foundation Package
Hello Face Package
InternetExplorer Optional Package
KB5003791
KB5011048
KB5015684
KB5033052
LanguageFeatures Basic en us Package
LanguageFeatures Handwriting en us Package
LanguageFeatures OCR en us Package
LanguageFeatures Speech en us Package
LanguageFeatures TextToSpeech en us Package
MSPaint FoD Package
MediaPlayer Package
Microsoft OneCore ApplicationModel Sync Desktop FOD Package
Microsoft OneCore DirectX Database FOD Package
NetFx3 OnDemand Package
Notepad FoD Package
OpenSSH Client Package
PowerShell ISE FOD Package
Printing PMCPPC FoD Package
Printing WFS FoD Package
ProfessionalEdition
QuickAssist Package
RollupFix
ServicingStack
ServicingStack 3989
StepsRecorder Package
TabletPCMath Package
UserExperience Desktop Package
WordPad FoD Package

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MALICIOUS
- The DLL Hijacking
  - Teams.exe (PID: 3208)
  - Teams.exe (PID: 6352)
- Changes the autorun value in the registry
  - Teams.exe (PID: 2076)
- Registers / Runs the DLL via REGSVR32.EXE
  - Update.exe (PID: 7080)
SUSPICIOUS
- Process drops legitimate windows executable
  - Setup.exe (PID: 6504)
  - MSTeamsSetup_c_l_.exe (PID: 7056)
  - Update.exe (PID: 7080)
- Starts a Microsoft application from unusual location
  - Setup.exe (PID: 6504)
- Executable content was dropped or overwritten
  - Setup.exe (PID: 6504)
  - MSTeamsSetup_c_l_.exe (PID: 7056)
  - Update.exe (PID: 7080)
- Reads security settings of Internet Explorer
  - Update.exe (PID: 7080)
  - Teams.exe (PID: 2076)
- Checks Windows Trust Settings
  - Update.exe (PID: 7080)
- The process drops C-runtime libraries
  - Update.exe (PID: 7080)
- Application launched itself
  - Teams.exe (PID: 2464)
  - Teams.exe (PID: 2076)
- Creates/Modifies COM task schedule object
  - regsvr32.exe (PID: 244)
  - regsvr32.exe (PID: 6844)
- Searches for installed software
  - Update.exe (PID: 7080)
- Creates a software uninstall entry
  - Update.exe (PID: 7080)
INFO
- The sample compiled with english language support
  - Setup.exe (PID: 6504)
  - Update.exe (PID: 7080)
- Creates files or folders in the user directory
  - Setup.exe (PID: 6504)
  - MSTeamsSetup_c_l_.exe (PID: 7056)
  - Update.exe (PID: 7080)
  - Squirrel.exe (PID: 3288)
  - Teams.exe (PID: 2464)
  - Update.exe (PID: 5544)
  - Teams.exe (PID: 2076)
  - Teams.exe (PID: 6564)
- Checks supported languages
  - Setup.exe (PID: 6504)
  - MSTeamsSetup_c_l_.exe (PID: 7056)
  - Update.exe (PID: 7080)
  - Squirrel.exe (PID: 3288)
  - Teams.exe (PID: 2464)
  - Update.exe (PID: 5544)
  - Teams.exe (PID: 3208)
  - Teams.exe (PID: 7016)
  - Teams.exe (PID: 6352)
  - Teams.exe (PID: 6564)
  - Teams.exe (PID: 4824)
  - Teams.exe (PID: 2076)
  - Teams.exe (PID: 3544)
  - Teams.exe (PID: 1512)
  - Teams.exe (PID: 2548)
- Reads the computer name
  - Setup.exe (PID: 6504)
  - Update.exe (PID: 7080)
  - Squirrel.exe (PID: 3288)
  - Update.exe (PID: 5544)
  - Teams.exe (PID: 2464)
  - Teams.exe (PID: 3208)
  - Teams.exe (PID: 2076)
  - Teams.exe (PID: 6352)
  - Teams.exe (PID: 7016)
  - Teams.exe (PID: 6564)
  - Teams.exe (PID: 1512)
- Reads Microsoft Office registry keys
  - Update.exe (PID: 7080)
  - Teams.exe (PID: 2464)
  - Squirrel.exe (PID: 3288)
  - Update.exe (PID: 5544)
  - Teams.exe (PID: 2076)
- Reads the software policy settings
  - Update.exe (PID: 7080)
  - Update.exe (PID: 5544)
  - Teams.exe (PID: 2076)
  - Squirrel.exe (PID: 3288)
- Process checks computer location settings
  - Update.exe (PID: 7080)
  - Teams.exe (PID: 2464)
  - Teams.exe (PID: 2076)
  - Teams.exe (PID: 4824)
  - Teams.exe (PID: 2548)
  - Teams.exe (PID: 3544)
- Reads the machine GUID from the registry
  - Squirrel.exe (PID: 3288)
  - Update.exe (PID: 5544)
  - Teams.exe (PID: 2076)
  - Update.exe (PID: 7080)
- Reads CPU info
  - Teams.exe (PID: 2464)
  - Teams.exe (PID: 2076)
- Reads product name
  - Teams.exe (PID: 2464)
  - Teams.exe (PID: 2076)
- Reads Environment values
  - Teams.exe (PID: 2464)
  - Teams.exe (PID: 2076)
- Checks proxy server information
  - Teams.exe (PID: 2464)
  - Update.exe (PID: 5544)
  - Teams.exe (PID: 2076)
  - Update.exe (PID: 7080)
  - Squirrel.exe (PID: 3288)
- The process uses the downloaded file
  - Update.exe (PID: 7080)
- Create files in a temporary directory
  - Teams.exe (PID: 2464)
  - Teams.exe (PID: 2076)
  - Update.exe (PID: 7080)
- Disables trace logs
  - Update.exe (PID: 5544)
  - Update.exe (PID: 7080)
  - Squirrel.exe (PID: 3288)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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No Malware configuration.

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TRiD

.exe	\|	Win64 Executable (generic) (76.4)
.exe	\|	Win32 Executable (generic) (12.4)
.exe	\|	Generic Win/DOS Executable (5.5)
.exe	\|	DOS Executable Generic (5.5)

EXIF

EXE

MachineType:	AMD AMD64
TimeStamp:	2025:01:21 16:07:41+00:00
ImageFileCharacteristics:	Executable, Large address aware
PEType:	PE32+
LinkerVersion:	14.29
CodeSize:	2274304
InitializedDataSize:	27071488
UninitializedDataSize:	-
EntryPoint:	0x21765c
OSVersion:	6
ImageVersion:	-
SubsystemVersion:	6
Subsystem:	Windows GUI
FileVersionNumber:	1.7.0.3315
ProductVersionNumber:	1.7.0.3315
FileFlagsMask:	0x003f
FileFlags:	(none)
FileOS:	Windows NT 32-bit
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	English (U.S.)
CharacterSet:	Unicode
FileDescription:	Microsoft Teams
FileVersion:	1.7.00.3315
InternalName:	Setup.exe
LegalCopyright:	Copyright (C) 2016 Microsoft. All rights reserved.
OriginalFileName:	Setup.exe
ProductName:	Microsoft Teams
ProductVersion:	1.7.00.3315
SquirrelAwareVersion:	1
CompanyName:	Microsoft Corporation

No data.

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All screenshots are available in the full report

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Total processes

150

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

244

/s /n /i:user "C:\Users\admin\AppData\Local\Microsoft\TeamsMeetingAddin\1.0.24151.2\x64\Microsoft.Teams.AddinLoader.dll"

C:\Windows\System32\regsvr32.exe

—

regsvr32.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft(C) Register Server

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\regsvr32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\aclayers.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll

1512

"C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --lang=en-US --service-sandbox-type=audio --enable-wer --user-data-dir="C:\Users\admin\AppData\Roaming\Microsoft\Teams" --mojo-platform-channel-handle=3800 --field-trial-handle=1800,i,5833771605061345395,7131410816166854461,131072 --enable-features=ContextBridgeMutability,SharedArrayBuffer,WinUseBrowserSpellChecker,WinUseHybridSpellChecker --disable-features=CalculateNativeWinOcclusion,ExtraCookieValidityChecks,ForcedColors,SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:8

C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe

—

Teams.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

LOW

Description:

Microsoft Teams

Version:

1.7.00.19353

Modules

Images
c:\users\admin\appdata\local\microsoft\teams\current\teams.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ws2_32.dll

2076

"C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe" --squirrel-firstrun

C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe

Update.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Teams

Version:

1.7.00.19353

Modules

Images
c:\users\admin\appdata\local\microsoft\teams\current\teams.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\users\admin\appdata\local\microsoft\teams\current\ffmpeg.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\uiautomationcore.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll

2464

"C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe" --squirrel-install 1.7.00.19353

C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe

—

Update.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Teams

Exit code:

Version:

1.7.00.19353

Modules

Images
c:\users\admin\appdata\local\microsoft\teams\current\teams.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\uiautomationcore.dll

2548

"C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe" --type=renderer --enable-wer --user-data-dir="C:\Users\admin\AppData\Roaming\Microsoft\Teams" --app-user-model-id=com.squirrel.Teams.Teams --app-path="C:\Users\admin\AppData\Local\Microsoft\Teams\current\resources\app.asar" --enable-sandbox --autoplay-policy=no-user-gesture-required --disable-background-timer-throttling --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=9 --mojo-platform-channel-handle=4768 --field-trial-handle=1800,i,5833771605061345395,7131410816166854461,131072 --enable-features=ContextBridgeMutability,SharedArrayBuffer,WinUseBrowserSpellChecker,WinUseHybridSpellChecker --disable-features=CalculateNativeWinOcclusion,ExtraCookieValidityChecks,ForcedColors,SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --msteams-process-type=accountSelectWindow /prefetch:1

C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe

—

Teams.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

LOW

Description:

Microsoft Teams

Version:

1.7.00.19353

Modules

Images
c:\users\admin\appdata\local\microsoft\teams\current\teams.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ws2_32.dll

3208

"C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe" --type=gpu-process --user-data-dir="C:\Users\admin\AppData\Roaming\Microsoft\Teams" --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1732 --field-trial-handle=1896,i,9580035878589261955,6433630308446160644,131072 --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2

C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe

—

Teams.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

LOW

Description:

Microsoft Teams

Exit code:

Version:

1.7.00.19353

Modules

Images
c:\users\admin\appdata\local\microsoft\teams\current\teams.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ws2_32.dll

3288

"C:\Users\admin\AppData\Local\Microsoft\Teams\current\Squirrel.exe" --updateSelf=C:\Users\admin\AppData\Local\SquirrelTemp\Update.exe

C:\Users\admin\AppData\Local\Microsoft\Teams\current\Squirrel.exe

Update.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Teams classic

Exit code:

Version:

3.3.13.0

Modules

Images
c:\users\admin\appdata\local\microsoft\teams\current\squirrel.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\mscoree.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\advapi32.dll

3544

"C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe" --type=renderer --enable-wer --user-data-dir="C:\Users\admin\AppData\Roaming\Microsoft\Teams" --app-user-model-id=com.squirrel.Teams.Teams --app-path="C:\Users\admin\AppData\Local\Microsoft\Teams\current\resources\app.asar" --enable-sandbox --autoplay-policy=no-user-gesture-required --disable-background-timer-throttling --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=3156 --field-trial-handle=1800,i,5833771605061345395,7131410816166854461,131072 --enable-features=ContextBridgeMutability,SharedArrayBuffer,WinUseBrowserSpellChecker,WinUseHybridSpellChecker --disable-features=CalculateNativeWinOcclusion,ExtraCookieValidityChecks,ForcedColors,SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --msteams-process-type=notificationsManager /prefetch:1

C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe

—

Teams.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

LOW

Description:

Microsoft Teams

Version:

1.7.00.19353

Modules

Images
c:\users\admin\appdata\local\microsoft\teams\current\teams.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ws2_32.dll

4824

"C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe" --type=renderer --enable-wer --user-data-dir="C:\Users\admin\AppData\Roaming\Microsoft\Teams" --app-user-model-id=com.squirrel.Teams.Teams --app-path="C:\Users\admin\AppData\Local\Microsoft\Teams\current\resources\app.asar" --enable-sandbox --first-renderer-process --autoplay-policy=no-user-gesture-required --disable-background-timer-throttling --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2520 --field-trial-handle=1800,i,5833771605061345395,7131410816166854461,131072 --enable-features=ContextBridgeMutability,SharedArrayBuffer,WinUseBrowserSpellChecker,WinUseHybridSpellChecker --disable-features=CalculateNativeWinOcclusion,ExtraCookieValidityChecks,ForcedColors,SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --msteams-process-type=loadingWindow /prefetch:1

C:\Users\admin\AppData\Local\Microsoft\Teams\current\Teams.exe

—

Teams.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

LOW

Description:

Microsoft Teams

Version:

1.7.00.19353

Modules

Images
c:\users\admin\appdata\local\microsoft\teams\current\teams.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ws2_32.dll

5544

C:\Users\admin\AppData\Local\Microsoft\Teams\Update.exe --createShortcut=Teams.exe -l=StartMenu

C:\Users\admin\AppData\Local\Microsoft\Teams\Update.exe

Teams.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Microsoft Teams classic

Exit code:

Version:

3.3.15.0

Modules

Images
c:\users\admin\appdata\local\microsoft\teams\update.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\mscoree.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\advapi32.dll

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Total events

15 560

Read events

14 889

Write events

652

Delete events

Modification events


(PID) Process:	(7080) Update.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Update_RASAPI32
Operation:	write	Name:	EnableFileTracing
Value: 0
(PID) Process:	(7080) Update.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Update_RASAPI32
Operation:	write	Name:	EnableAutoFileTracing
Value: 0
(PID) Process:	(7080) Update.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Update_RASAPI32
Operation:	write	Name:	EnableConsoleTracing
Value: 0
(PID) Process:	(7080) Update.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Update_RASAPI32
Operation:	write	Name:	FileTracingMask
Value:
(PID) Process:	(7080) Update.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Update_RASAPI32
Operation:	write	Name:	ConsoleTracingMask
Value:
(PID) Process:	(7080) Update.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Update_RASAPI32
Operation:	write	Name:	MaxFileSize
Value: 1048576
(PID) Process:	(7080) Update.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Update_RASAPI32
Operation:	write	Name:	FileDirectory
Value: %windir%\tracing
(PID) Process:	(7080) Update.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Update_RASMANCS
Operation:	write	Name:	EnableFileTracing
Value: 0
(PID) Process:	(7080) Update.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Update_RASMANCS
Operation:	write	Name:	EnableAutoFileTracing
Value: 0
(PID) Process:	(7080) Update.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Update_RASMANCS
Operation:	write	Name:	EnableConsoleTracing
Value: 0

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Executable files

347

Suspicious files

180

Text files

143

Unknown types

Dropped files

PID	Process	Filename		Type
7080	Update.exe	C:\Users\admin\AppData\Local\Microsoft\Teams\packages\Teams-1.7.00.19353-full.nupkg		—
		MD5:—	SHA256:—
7056	MSTeamsSetup_c_l_.exe	C:\Users\admin\AppData\Local\SquirrelTemp\background.gif		image
		MD5:FF1F29DCA0451246C3CA6CB7B023434F	SHA256:753D7D351E427246E2B6CC86C45E21F952939E306C3EB2FDB1BD7D67842C64B8
6504	Setup.exe	C:\Users\admin\AppData\Local\Downloads\MSTeamsSetup_c_l_.exe		executable
		MD5:CF0E0F57B68A11D099EC944200A6069D	SHA256:73354811E3109E265821124A18B1B7D9FD3DD1207BB46C18937D250C6AB46DEC
7056	MSTeamsSetup_c_l_.exe	C:\Users\admin\AppData\Local\SquirrelTemp\downloading.gif		image
		MD5:3488A1749B859E969C01BA981036FAB6	SHA256:C3FA333FDBCE95D504AEE31912993DC17AB31324428F557AC774F7E98B049B99
7080	Update.exe	C:\Users\admin\AppData\Local\Microsoft\Teams\current\api-ms-win-core-errorhandling-l1-1-0.dll		executable
		MD5:B532BE6FCC0B9A8541A983109B9F2B9D	SHA256:FF47710B4FA6FF287CF7BF686518008B3A181FDAA71735BF4E0D75C00EE5E9D0
7080	Update.exe	C:\Users\admin\AppData\Local\Microsoft\Teams\current\api-ms-win-core-file-l1-2-0.dll		executable
		MD5:86CFB9639CE71714EFF03EF8538034A2	SHA256:9D459C4EA36ED23B521CB7844B8B524BF868AA560515A172355FA44963E5B077
7080	Update.exe	C:\Users\admin\AppData\Local\Microsoft\Teams\current\api-ms-win-core-handle-l1-1-0.dll		executable
		MD5:A45921DDCE0E22AC4070230216A28AAD	SHA256:D84B08DE630E1FEB0DF557BA04632012BAD27ECE4426BE8308D7C3CD2050638C
7080	Update.exe	C:\Users\admin\AppData\Local\Microsoft\Teams\current\api-ms-win-core-file-l1-1-0.dll		executable
		MD5:42B1252A3EA28CF3566F6B9EE9815195	SHA256:E903AD9E228EE00A40E22F08319DD1B85DB6B33542E146835489B999BFB1C489
7080	Update.exe	C:\Users\admin\AppData\Local\Microsoft\Teams\current\api-ms-win-core-file-l2-1-0.dll		executable
		MD5:919B224C152EE516ED3726C2D41F8CBC	SHA256:5AD893365305220EF3FD86497ED60978164DB21DBFD61746EAC818041EE8457A
7056	MSTeamsSetup_c_l_.exe	C:\Users\admin\AppData\Local\SquirrelTemp\endpoint.json		binary
		MD5:677CAB9A8B50AD026CFA7625A35DD2D7	SHA256:07890DDA20815E1E57DCA9553F5DFCFF1B85F4A4369685D4991599E2618978F0

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
3508	svchost.exe	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
—	—	GET	200	184.30.131.245:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D	unknown	—	—	whitelisted
1176	svchost.exe	GET	200	184.30.131.245:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
3508	svchost.exe	GET	200	23.216.77.28:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
6456	backgroundTaskHost.exe	GET	200	2.23.77.188:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D	unknown	—	—	whitelisted
2728	SIHClient.exe	GET	200	2.23.246.101:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted
2728	SIHClient.exe	GET	200	2.23.246.101:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID	Process	IP	Domain	ASN	CN	Reputation
3508	svchost.exe	23.216.77.28:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
4	System	192.168.100.255:137	—	—	—	whitelisted
3508	svchost.exe	184.30.21.171:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
5064	SearchApp.exe	104.126.37.131:443	www.bing.com	Akamai International B.V.	DE	whitelisted
—	—	184.30.131.245:80	ocsp.digicert.com	AKAMAI-AS	US	whitelisted
—	—	20.73.194.208:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
4712	MoUsoCoreWorker.exe	20.73.194.208:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
1076	svchost.exe	184.30.18.9:443	go.microsoft.com	AKAMAI-AS	DE	whitelisted
1176	svchost.exe	40.126.32.68:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted

DNS requests

Domain	IP	Reputation
crl.microsoft.com	23.216.77.28 23.216.77.20	whitelisted
www.microsoft.com	184.30.21.171 2.23.246.101	whitelisted
www.bing.com	104.126.37.131 104.126.37.139	whitelisted
google.com	142.250.185.238	whitelisted
ocsp.digicert.com	184.30.131.245 2.23.77.188	whitelisted
go.microsoft.com	184.30.18.9	whitelisted
login.live.com	40.126.32.68 20.190.160.22 20.190.160.17 40.126.32.134 40.126.32.136 40.126.32.133 40.126.32.72 20.190.160.20	whitelisted
teams.live.com	52.113.194.132	whitelisted
statics.teams.cdn.office.net	23.48.23.22 23.48.23.9	whitelisted
settings-win.data.microsoft.com	51.104.136.2 4.231.128.59	whitelisted

Threats

No threats detected

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Process	Message
Update.exe	TelemetryManagerImpl creation started
Update.exe	Update.exe Information: 0 :
Update.exe	Starting TelemetryManager constructor
Update.exe	Update.exe Information: 0 :
Update.exe	Update.exe Information: 0 :
Update.exe	Performance counters are disabled. Skipping creation of counters category.
Update.exe	Update.exe Information: 0 :
Update.exe	RecordBatcherTask with ID 4 started.
Update.exe	Update.exe Information: 0 :
Update.exe	DataPackageSender with UserAgent name: AST-exe-C#, version: 3.3.15.0, [Ast_Default_Source]

General Info

Setup.exe

974930CE3F894F494C573FB9E7EE0076

07819B738FAFF62A2724DFCF347860AAAC922A5C

FCC862DB236CCD85A0E8184C72449A657FE31BB90F2DBD650FFF158260622D7D

98304:Nrhz972Ytp74dEIRm1otdlqZhY40U+DgLhqO0KkMVqw/DhXtr2MiJK4uFAwN8sgj:yjlNjlj

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

The DLL Hijacking

Changes the autorun value in the registry

Registers / Runs the DLL via REGSVR32.EXE

SUSPICIOUS

Process drops legitimate windows executable

Starts a Microsoft application from unusual location

Executable content was dropped or overwritten

Reads security settings of Internet Explorer

Checks Windows Trust Settings

The process drops C-runtime libraries

Application launched itself

Creates/Modifies COM task schedule object

Searches for installed software

Creates a software uninstall entry

INFO

The sample compiled with english language support

Creates files or folders in the user directory

Checks supported languages

Reads the computer name

Reads Microsoft Office registry keys

Reads the software policy settings

Process checks computer location settings

Reads the machine GUID from the registry

Reads CPU info

Reads product name

Reads Environment values

Checks proxy server information

The process uses the downloaded file

Create files in a temporary directory

Disables trace logs

Malware configuration

Static information

TRiD

EXIF

EXE

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests