Malware analysis Zoom_launcher.exe Malicious activity

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download:	Zoom_launcher.exe
Full analysis:	https://app.any.run/tasks/fd3eafb0-4b9e-4b37-b8b5-79458e436302
Verdict:	Malicious activity
Analysis date:	March 05, 2019, 11:13:07
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386, for MS Windows
MD5:	C42B05C459306678DB2F553F881EA72F
SHA1:	2E29124EFCB7CB19F823B78E5E2C084B5F97BD7F
SHA256:	EBED1C6EC1AB1E4F69B6CE5533C5393660ECC3BA922CA7834D7223F6AD7BAE01
SSDEEP:	1536:MoWYZeUtIqyluTWAp9PDxeG8D3qd8IAAL/V7mkRZ+KQdZAj:zWYZeUSqykWqxA7qFAAJRpQdZAj

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:: 300 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 240 seconds
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 8.0.7601.17514 undefined
Adobe Acrobat Reader DC MUI (15.023.20070)
Adobe Flash Player 26 ActiveX (26.0.0.131)
Adobe Flash Player 26 NPAPI (26.0.0.131)
Adobe Flash Player 26 PPAPI (26.0.0.131)
Adobe Refresh Manager (1.8.0)
CCleaner (5.35)
FileZilla Client 3.36.0 (3.36.0)
Google Chrome (68.0.3440.106)
Google Update Helper (1.3.33.17)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.6.1 (4.6.01055)
Microsoft Office Access MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Access Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Excel MUI (English) 2010 (14.0.6029.1000)
Microsoft Office OneNote MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Outlook MUI (English) 2010 (14.0.6029.1000)
Microsoft Office PowerPoint MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Professional 2010 (14.0.6029.1000)
Microsoft Office Proof (English) 2010 (14.0.6029.1000)
Microsoft Office Proof (French) 2010 (14.0.6029.1000)
Microsoft Office Proof (Spanish) 2010 (14.0.6029.1000)
Microsoft Office Proofing (English) 2010 (14.0.6029.1000)
Microsoft Office Publisher MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Single Image 2010 (14.0.6029.1000)
Microsoft Office Word MUI (English) 2010 (14.0.6029.1000)
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 (9.0.30729.6161)
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219 (10.0.40219)
Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2017 Redistributable (x86) - 14.15.26706 (14.15.26706.0)
Microsoft Visual C++ 2017 x86 Additional Runtime - 14.15.26706 (14.15.26706)
Microsoft Visual C++ 2017 x86 Minimum Runtime - 14.15.26706 (14.15.26706)
Mozilla Firefox 61.0.2 (x86 en-US) (61.0.2)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype version 8.29 (8.29)
VLC media player (2.2.6)
WinRAR 5.60 (32-bit) (5.60.0)

Hotfixes

Client LanguagePack Package
Client Refresh LanguagePack Package
CodecPack Basic Package
Foundation Package
IE Troubleshooters Package
InternetExplorer Optional Package
KB2534111
KB2999226
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition

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MALICIOUS
- Application was dropped or rewritten from another process
  - Installer.exe (PID: 3604)
  - Installer.exe (PID: 2692)
- Loads dropped or rewritten executable
  - Installer.exe (PID: 3604)
SUSPICIOUS
- Creates files in the user directory
  - Zoom_launcher.exe (PID: 2972)
  - Installer.exe (PID: 3604)
- Application launched itself
  - Installer.exe (PID: 3604)
- Executable content was dropped or overwritten
  - Zoom_launcher.exe (PID: 2972)
  - Installer.exe (PID: 3604)
- Creates a software uninstall entry
  - Installer.exe (PID: 3604)
- Changes IE settings (feature browser emulation)
  - Installer.exe (PID: 3604)
- Modifies the open verb of a shell class
  - Installer.exe (PID: 3604)
INFO
- Dropped object may contain Bitcoin addresses
  - Installer.exe (PID: 3604)

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	\|	Win32 Executable MS Visual C++ (generic) (42.2)
.exe	\|	Win64 Executable (generic) (37.3)
.dll	\|	Win32 Dynamic Link Library (generic) (8.8)
.exe	\|	Win32 Executable (generic) (6)
.exe	\|	Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2018:08:06 06:34:13+02:00
PEType:	PE32
LinkerVersion:	9
CodeSize:	36864
InitializedDataSize:	20992
UninitializedDataSize:	-
EntryPoint:	0x1276
OSVersion:	5
ImageVersion:	-
SubsystemVersion:	5
Subsystem:	Windows GUI
FileVersionNumber:	4.1.29637.806
ProductVersionNumber:	4.1.29637.806
FileFlagsMask:	0x003f
FileFlags:	(none)
FileOS:	Win32
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	English (U.S.)
CharacterSet:	Windows, Latin1
Comments:	Zoom Meetings Opener
CompanyName:	Zoom Video Communications, Inc.
FileDescription:	Zoom Meetings Opener
FileVersion:	4,1,29637,0806
InternalName:	Zoom Meetings Opener
LegalCopyright:	Copyright ©2012-2018 Zoom Video Communications, Inc. All rights reserved.
LegalTrademarks:	Zoom Meetings Opener
OriginalFileName:	Zoom Meetings Opener
ProductName:	Zoom Meetings Opener
ProductVersion:	4,1,29637,0806

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	06-Aug-2018 04:34:13
Detected languages:	English - United States
Debug artifacts:	d:\ZoomCode\B_41_127695\Bin\Release\NewWebLauncher\ZoomWebLauncher.pdb
Comments:	Zoom Meetings Opener
CompanyName:	Zoom Video Communications, Inc.
FileDescription:	Zoom Meetings Opener
FileVersion:	4,1,29637,0806
InternalName:	Zoom Meetings Opener
LegalCopyright:	Copyright ©2012-2018 Zoom Video Communications, Inc. All rights reserved.
LegalTrademarks:	Zoom Meetings Opener
OriginalFilename:	Zoom Meetings Opener
ProductName:	Zoom Meetings Opener
ProductVersion:	4,1,29637,0806

DOS Header

Magic number:	MZ
Bytes on last page of file:	0x0090
Pages in file:	0x0003
Relocations:	0x0000
Size of header:	0x0004
Min extra paragraphs:	0x0000
Max extra paragraphs:	0xFFFF
Initial SS value:	0x0000
Initial SP value:	0x00B8
Checksum:	0x0000
Initial IP value:	0x0000
Initial CS value:	0x0000
Overlay number:	0x0000
OEM identifier:	0x0000
OEM information:	0x0000
Address of NE header:	0x000000C8

PE Headers

Signature:	PE
Machine:	IMAGE_FILE_MACHINE_I386
Number of sections:	5
Time date stamp:	06-Aug-2018 04:34:13
Pointer to Symbol Table:	0x00000000
Number of symbols:	0
Size of Optional Header:	0x00E0
Characteristics:	IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_EXECUTABLE_IMAGE

Sections

Name	Virtual Address	Virtual Size	Raw Size	Charateristics	Entropy
.text	0x00001000	0x00008FE6	0x00009000	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	6.43199
.rdata	0x0000A000	0x0000241B	0x00002600	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	5.47139
.data	0x0000D000	0x0000014C	0x00000200	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	0.10191
.rsrc	0x0000E000	0x00001F18	0x00002000	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	3.9183
.reloc	0x00010000	0x0000092C	0x00000A00	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ	5.87218

Resources

Title	Entropy	Size	Codepage	Language	Type
1	3.43199	1108	UNKNOWN	English - United States	RT_VERSION
2	2.21059	34	UNKNOWN	English - United States	RT_GROUP_ICON
7	2.95584	234	UNKNOWN	English - United States	RT_STRING
32	3.09147	432	UNKNOWN	English - United States	RT_STRING
33	3.11204	290	UNKNOWN	English - United States	RT_STRING

Imports


ADVAPI32.dll
CRYPT32.dll
GDI32.dll
KERNEL32.dll
SHELL32.dll
USER32.dll

No data.

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All screenshots are available in the full report

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Total processes

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

2692

"C:\Users\admin\AppData\Roaming\Zoom\ZoomDownload\Installer.exe" /addfwexception --bin_home="C:\Users\admin\AppData\Roaming\Zoom\bin"

C:\Users\admin\AppData\Roaming\Zoom\ZoomDownload\Installer.exe

Installer.exe

User:

admin

Company:

Zoom Video Communications, Inc.

Integrity Level:

HIGH

Description:

Zoom Meetings Installer

Exit code:

Version:

4,3,46499,0224

Modules

Images
c:\users\admin\appdata\roaming\zoom\zoomdownload\installer.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\psapi.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll

2972

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

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

explorer.exe

User:

admin

Company:

Zoom Video Communications, Inc.

Integrity Level:

MEDIUM

Description:

Zoom Meetings Opener

Exit code:

Version:

4,1,29637,0806

Modules

Images
c:\users\admin\appdata\local\temp\zoom_launcher.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\crypt32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\msasn1.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll

3604

"C:\Users\admin\AppData\Roaming\Zoom\ZoomDownload\Installer.exe" ZInstaller --conf.mode=silent --ipc_wnd=65830

C:\Users\admin\AppData\Roaming\Zoom\ZoomDownload\Installer.exe

Zoom_launcher.exe

User:

admin

Company:

Zoom Video Communications, Inc.

Integrity Level:

MEDIUM

Description:

Zoom Meetings Installer

Exit code:

Version:

4,3,46499,0224

Modules

Images
c:\users\admin\appdata\roaming\zoom\zoomdownload\installer.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\psapi.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\msvcrt.dll

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Total events

878

Read events

769

Write events

109

Delete events

Modification events


(PID) Process:	(2972) Zoom_launcher.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Zoom_launcher_RASAPI32
Operation:	write	Name:	EnableFileTracing
Value: 0
(PID) Process:	(2972) Zoom_launcher.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Zoom_launcher_RASAPI32
Operation:	write	Name:	EnableConsoleTracing
Value: 0
(PID) Process:	(2972) Zoom_launcher.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Zoom_launcher_RASAPI32
Operation:	write	Name:	FileTracingMask
Value: 4294901760
(PID) Process:	(2972) Zoom_launcher.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Zoom_launcher_RASAPI32
Operation:	write	Name:	ConsoleTracingMask
Value: 4294901760
(PID) Process:	(2972) Zoom_launcher.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Zoom_launcher_RASAPI32
Operation:	write	Name:	MaxFileSize
Value: 1048576
(PID) Process:	(2972) Zoom_launcher.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Zoom_launcher_RASAPI32
Operation:	write	Name:	FileDirectory
Value: %windir%\tracing
(PID) Process:	(2972) Zoom_launcher.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Zoom_launcher_RASMANCS
Operation:	write	Name:	EnableFileTracing
Value: 0
(PID) Process:	(2972) Zoom_launcher.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Zoom_launcher_RASMANCS
Operation:	write	Name:	EnableConsoleTracing
Value: 0
(PID) Process:	(2972) Zoom_launcher.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Zoom_launcher_RASMANCS
Operation:	write	Name:	FileTracingMask
Value: 4294901760
(PID) Process:	(2972) Zoom_launcher.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\Zoom_launcher_RASMANCS
Operation:	write	Name:	ConsoleTracingMask
Value: 4294901760

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
2972	Zoom_launcher.exe	C:\Users\admin\AppData\Roaming\Zoom\ZoomDownload\Zoom.msi		—
		MD5:—	SHA256:—
2972	Zoom_launcher.exe	C:\Users\admin\AppData\Roaming\Zoom\ZoomDownload\Installer.exe		executable
		MD5:—	SHA256:—
2972	Zoom_launcher.exe	C:\Users\admin\AppData\Roaming\Microsoft\Windows\Cookies\admin@zoom[1].txt		text
		MD5:—	SHA256:—
2972	Zoom_launcher.exe	C:\Users\admin\AppData\Local\Temp\zopener_8a4800ea0a3f43f4bafd7706c1a4e7ee.log		text
		MD5:—	SHA256:—
3604	Installer.exe	C:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\leave.pcm		binary
		MD5:—	SHA256:—
3604	Installer.exe	C:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\asproxy.dll		executable
		MD5:—	SHA256:—
3604	Installer.exe	C:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\ZoomInstall.xml		xml
		MD5:—	SHA256:—
3604	Installer.exe	C:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\annoter.dll		executable
		MD5:—	SHA256:—
3604	Installer.exe	C:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\CmmBrowserEngine.dll		executable
		MD5:—	SHA256:—
3604	Installer.exe	C:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\CptControl.exe		executable
		MD5:—	SHA256:—

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

No HTTP requests

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
2972	Zoom_launcher.exe	52.202.62.237:443	launcher.zoom.us	Amazon.com, Inc.	US	unknown
2972	Zoom_launcher.exe	143.204.208.36:443	d11yldzmag5yn.cloudfront.net	—	US	suspicious

DNS requests

Domain	IP	Reputation
launcher.zoom.us	52.202.62.237	whitelisted
d11yldzmag5yn.cloudfront.net	143.204.208.36 143.204.208.141 143.204.208.22 143.204.208.43	whitelisted

Threats

No threats detected

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Process	Message
Installer.exe	[ProductPathHelper::RecursiveRemoveDirA] Path is:
Installer.exe	C:\Users\admin\AppData\Roaming\Zoom\zoom_install_src
Installer.exe	[ProductPathHelper::RecursiveRemoveDirA] Path is:
Installer.exe	C:\Users\admin\AppData\Roaming\Zoom\uninstall
Installer.exe	[ProductPathHelper::RecursiveRemoveDirA] Path is:
Installer.exe	C:\Users\admin\AppData\Roaming\Zoom\bin
Installer.exe	[CZoomProductPathHelper::RecursiveRemoveDirA] Path is:
Installer.exe	C:\Users\admin\AppData\Roaming\Zoom\zoom_install_src\

General Info

Zoom_launcher.exe

C42B05C459306678DB2F553F881EA72F

2E29124EFCB7CB19F823B78E5E2C084B5F97BD7F

EBED1C6EC1AB1E4F69B6CE5533C5393660ECC3BA922CA7834D7223F6AD7BAE01

1536:MoWYZeUtIqyluTWAp9PDxeG8D3qd8IAAL/V7mkRZ+KQdZAj:zWYZeUSqykWqxA7qFAAJRpQdZAj

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Application was dropped or rewritten from another process

Loads dropped or rewritten executable

SUSPICIOUS

Creates files in the user directory

Application launched itself

Executable content was dropped or overwritten

Creates a software uninstall entry

Changes IE settings (feature browser emulation)

Modifies the open verb of a shell class

INFO

Dropped object may contain Bitcoin addresses

Malware configuration

Static information

TRiD

EXIF

EXE

Summary

DOS Header

PE Headers

Sections

Resources

Imports

Video and screenshots

Processes

Behavior graph

Specs description

Process information

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