Malware Analysis Report

2025-01-18 21:54

Sample ID 240622-mvndvsvcnb
Target 01bd199e8bffc657c28ef5f405708cf4_JaffaCakes118
SHA256 86f73e4b453adca758098896b056bf6c204679b608530a5b25b3bbc1eadcc31f
Tags
adware stealer
score
6/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
6/10

SHA256

86f73e4b453adca758098896b056bf6c204679b608530a5b25b3bbc1eadcc31f

Threat Level: Shows suspicious behavior

The file 01bd199e8bffc657c28ef5f405708cf4_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

adware stealer

Installs/modifies Browser Helper Object

Unsigned PE

Modifies registry class

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-22 10:47

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 10:47

Reported

2024-06-22 10:49

Platform

win7-20240611-en

Max time kernel

117s

Max time network

118s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\01bd199e8bffc657c28ef5f405708cf4_JaffaCakes118.dll

Signatures

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{00000000-0000-0000-0000-000000000000} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{00000000-0000-0000-0000-000000000000}\NoExplorer = "1" C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000000-0000-0000-0000-000000000000} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000000-0000-0000-0000-000000000000}\ C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000000-0000-0000-0000-000000000000}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000000-0000-0000-0000-000000000000}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\01bd199e8bffc657c28ef5f405708cf4_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{00000000-0000-0000-0000-000000000000}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2432 wrote to memory of 2436 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2432 wrote to memory of 2436 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2432 wrote to memory of 2436 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2432 wrote to memory of 2436 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2432 wrote to memory of 2436 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2432 wrote to memory of 2436 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2432 wrote to memory of 2436 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\01bd199e8bffc657c28ef5f405708cf4_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\01bd199e8bffc657c28ef5f405708cf4_JaffaCakes118.dll

Network

N/A

Files

memory/2436-0-0x00000000005C0000-0x000000000065C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 10:47

Reported

2024-06-22 10:49

Platform

win10v2004-20240508-en

Max time kernel

79s

Max time network

99s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\01bd199e8bffc657c28ef5f405708cf4_JaffaCakes118.dll

Signatures

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{00000000-0000-0000-0000-000000000000} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{00000000-0000-0000-0000-000000000000}\NoExplorer = "1" C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00000000-0000-0000-0000-000000000000}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00000000-0000-0000-0000-000000000000}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\01bd199e8bffc657c28ef5f405708cf4_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00000000-0000-0000-0000-000000000000}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00000000-0000-0000-0000-000000000000} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00000000-0000-0000-0000-000000000000}\ C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1096 wrote to memory of 1220 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1096 wrote to memory of 1220 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1096 wrote to memory of 1220 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe

Processes

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\01bd199e8bffc657c28ef5f405708cf4_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\01bd199e8bffc657c28ef5f405708cf4_JaffaCakes118.dll

Network

Country Destination Domain Proto
US 52.111.227.14:443 tcp

Files

memory/1220-0-0x00000000010F0000-0x00000000010F1000-memory.dmp