Malware analysis a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe Malicious activity

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File name:	a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe
Full analysis:	https://app.any.run/tasks/03dc7ef4-326e-4f7a-b064-1cd85c8d581c
Verdict:	Malicious activity
Analysis date:	May 18, 2025, 15:29:41
OS:	Windows 10 Professional (build: 19044, 64 bit)
Tags:	tofsee
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32 executable (GUI) Intel 80386 system file, for MS Windows, 7 sections
MD5:	F586E94D7134A4979EF2F631CD139773
SHA1:	3A291A12219541661550F6963D52606558382213
SHA256:	A2DFD17F971C08325991A313D6F6808EDECE458D5EAE024BA702326A3D6F376D
SSDEEP:	49152:9wx1kSpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpX:03

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:: 60 seconds
Heavy Evasion option:: off
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
- TOFSEE has been detected (YARA)
  - svchost.exe (PID: 7328)
- Changes the autorun value in the registry
  - a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe (PID: 7476)
SUSPICIOUS
- Reads security settings of Internet Explorer
  - a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe (PID: 7476)
- Detected use of alternative data streams (AltDS)
  - svchost.exe (PID: 7328)
- Executes application which crashes
  - a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe (PID: 7476)
  - vyeynyjp.exe (PID: 7260)
- Executable content was dropped or overwritten
  - a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe (PID: 7476)
- Connects to SMTP port
  - svchost.exe (PID: 7328)
INFO
- Process checks computer location settings
  - a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe (PID: 7476)
- Reads the computer name
  - a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe (PID: 7476)
  - vyeynyjp.exe (PID: 7260)
- Checks supported languages
  - vyeynyjp.exe (PID: 7260)
  - a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe (PID: 7476)
- Create files in a temporary directory
  - a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe (PID: 7476)

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:	Intel 386 or later, and compatibles
TimeStamp:	2018:03:26 16:52:44+00:00
ImageFileCharacteristics:	Executable, 32-bit, System file
PEType:	PE32
LinkerVersion:	12
CodeSize:	53760
InitializedDataSize:	91185664
UninitializedDataSize:	-
EntryPoint:	0x26e7
OSVersion:	5.1
ImageVersion:	-
SubsystemVersion:	5.1
Subsystem:	Windows GUI

No data.

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All screenshots are available in the full report

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Total processes

153

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

1276

"C:\WINDOWS\SysWOW64\wusa.exe"

C:\Windows\SysWOW64\wusa.exe

a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

HIGH

Description:

Windows Update Standalone Installer

Exit code:

Version:

10.0.19041.3636 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\wusa.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\advapi32.dll

3300

C:\WINDOWS\SysWOW64\WerFault.exe -u -p 7476 -s 896

C:\Windows\SysWOW64\WerFault.exe

—

a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Problem Reporting

Exit code:

Version:

10.0.19041.3996 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\werfault.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\msvcrt.dll
c:\windows\syswow64\combase.dll

6028

C:\WINDOWS\SysWOW64\WerFault.exe -u -p 7476 -s 672

C:\Windows\SysWOW64\WerFault.exe

—

a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Problem Reporting

Exit code:

Version:

10.0.19041.3996 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\werfault.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\msvcrt.dll
c:\windows\syswow64\combase.dll

6048

C:\WINDOWS\SysWOW64\WerFault.exe -u -p 7260 -s 584

C:\Windows\SysWOW64\WerFault.exe

—

vyeynyjp.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Problem Reporting

Exit code:

Version:

10.0.19041.3996 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\werfault.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\msvcrt.dll
c:\windows\syswow64\combase.dll

7260

"C:\Users\admin\vyeynyjp.exe" /d"C:\Users\admin\AppData\Local\Temp\a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe" /e550302100000007F

C:\Users\admin\vyeynyjp.exe

a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

3221225477

Modules

Images
c:\users\admin\vyeynyjp.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\advapi32.dll

7328

svchost.exe

C:\Windows\SysWOW64\svchost.exe

vyeynyjp.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Host Process for Windows Services

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\svchost.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\ws2_32.dll

7476

"C:\Users\admin\AppData\Local\Temp\a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe"

C:\Users\admin\AppData\Local\Temp\a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

3221225477

Modules

Images
c:\users\admin\appdata\local\temp\a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\advapi32.dll

7680

C:\WINDOWS\SysWOW64\WerFault.exe -u -p 7476 -s 680

C:\Windows\SysWOW64\WerFault.exe

—

a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Problem Reporting

Exit code:

Version:

10.0.19041.3996 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\werfault.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\msvcrt.dll
c:\windows\syswow64\combase.dll

7732

C:\WINDOWS\SysWOW64\WerFault.exe -u -p 7476 -s 820

C:\Windows\SysWOW64\WerFault.exe

—

a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Problem Reporting

Exit code:

Version:

10.0.19041.3996 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\werfault.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\msvcrt.dll
c:\windows\syswow64\combase.dll

7784

C:\WINDOWS\SysWOW64\WerFault.exe -u -p 7476 -s 932

C:\Windows\SysWOW64\WerFault.exe

—

a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Problem Reporting

Exit code:

Version:

10.0.19041.3996 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\werfault.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\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\msvcrt.dll
c:\windows\syswow64\combase.dll

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Total events

3 561

Read events

3 560

Write events

Delete events

Modification events


(PID) Process:	(7476) a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Operation:	write	Name:	xyhgwiar
Value: "C:\Users\admin\vyeynyjp.exe"

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
7476	a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe	C:\Users\admin\vyeynyjp.exe		executable
		MD5:FDC439EACE1509685E8106833F602193	SHA256:F1E910C26721C5C63ED3C16208152ECFE9B408D56BBF717829FD8021EC1D9132
7476	a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe	C:\Users\admin\AppData\Local\Temp\luotlkfb.exe		executable
		MD5:4547B77A62966B9E743C364900320C16	SHA256:FC98DC3A250723A3D47E2B3F8FAC31C2FB0D6853ECE732E1E82C4970BDD8A38D

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
—	—	GET	200	23.48.23.143:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
—	—	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
5496	MoUsoCoreWorker.exe	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
6544	svchost.exe	GET	200	23.63.118.230:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
4608	SIHClient.exe	GET	200	184.30.21.171:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted
4608	SIHClient.exe	GET	200	184.30.21.171:80	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
4	System	192.168.100.255:137	—	—	—	whitelisted
—	—	20.73.194.208:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
—	—	23.48.23.143:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
—	—	184.30.21.171:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
5496	MoUsoCoreWorker.exe	184.30.21.171:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
2104	svchost.exe	20.73.194.208:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
2112	svchost.exe	20.73.194.208:443	—	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
3216	svchost.exe	172.211.123.249:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	whitelisted
7328	svchost.exe	13.107.253.44:80	microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted

DNS requests

Domain	IP	Reputation
crl.microsoft.com	23.48.23.143 23.48.23.156	whitelisted
www.microsoft.com	184.30.21.171	whitelisted
google.com	172.217.18.14	whitelisted
client.wns.windows.com	172.211.123.249	whitelisted
microsoft.com	13.107.253.44	whitelisted
microsoft-com.mail.protection.outlook.com	52.101.41.24 52.101.41.21 52.101.9.0 52.101.42.6	whitelisted
login.live.com	20.190.159.75 20.190.159.64 20.190.159.0 20.190.159.129 20.190.159.131 20.190.159.68 40.126.31.131 40.126.31.69	whitelisted
ocsp.digicert.com	23.63.118.230	whitelisted
settings-win.data.microsoft.com	40.127.240.158	whitelisted
slscr.update.microsoft.com	20.109.210.53	whitelisted

Threats

No threats detected

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No debug info

General Info

a2dfd17f971c08325991a313d6f6808edece458d5eae024ba702326a3d6f376d.exe

F586E94D7134A4979EF2F631CD139773

3A291A12219541661550F6963D52606558382213

A2DFD17F971C08325991A313D6F6808EDECE458D5EAE024BA702326A3D6F376D

49152:9wx1kSpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpwpX:03

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

TOFSEE has been detected (YARA)

Changes the autorun value in the registry

SUSPICIOUS

Reads security settings of Internet Explorer

Detected use of alternative data streams (AltDS)

Executes application which crashes

Executable content was dropped or overwritten

Connects to SMTP port

INFO

Process checks computer location settings

Reads the computer name

Checks supported languages

Create files in a temporary directory

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

Threats

Debug output strings