Malware Analysis Report

2025-01-18 21:58

Sample ID 240622-m5n35svgjc
Target 01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118
SHA256 8eb1594bf88702551fb3912955a2d23eeaf582f92ffb650841ce47719a8e390c
Tags
upx adware stealer
score
7/10

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
7/10

SHA256

8eb1594bf88702551fb3912955a2d23eeaf582f92ffb650841ce47719a8e390c

Threat Level: Shows suspicious behavior

The file 01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx adware stealer

ACProtect 1.3x - 1.4x DLL software

UPX packed file

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 11:03

Signatures

ACProtect 1.3x - 1.4x DLL software

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

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 11:03

Reported

2024-06-22 11:05

Platform

win7-20240611-en

Max time kernel

120s

Max time network

120s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\01cfde98d4bdf0cf5176bc0a508f0e60_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\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.sb C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.sb\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\ProgID\ = "01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.sb" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\ = "sb" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.sb\ = "sb" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.sb\Clsid\ = "{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2032 wrote to memory of 1796 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2032 wrote to memory of 1796 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2032 wrote to memory of 1796 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2032 wrote to memory of 1796 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2032 wrote to memory of 1796 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2032 wrote to memory of 1796 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2032 wrote to memory of 1796 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\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.dll

Network

N/A

Files

memory/1796-0-0x0000000000950000-0x00000000009ED000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 11:03

Reported

2024-06-22 11:05

Platform

win10v2004-20240508-en

Max time kernel

51s

Max time network

56s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.dll

Signatures

UPX packed file

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

Installs/modifies Browser Helper Object

stealer adware
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.sb\Clsid\ = "{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\ = "sb" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.sb C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.sb\ = "sb" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.sb\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-37B8-3A87-33C8-86FD8A35EED2}\ProgID\ = "01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.sb" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2036 wrote to memory of 3740 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2036 wrote to memory of 3740 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2036 wrote to memory of 3740 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\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\01cfde98d4bdf0cf5176bc0a508f0e60_JaffaCakes118.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

memory/3740-1-0x0000000002290000-0x000000000232D000-memory.dmp

memory/3740-0-0x0000000002290000-0x000000000232D000-memory.dmp