Malware Analysis Report

2025-01-18 22:03

Sample ID 240622-ffwclayera
Target 0156ee063a3f83784b3f480e71345a77_JaffaCakes118
SHA256 1a9317ad994e2dd249321c0d199b1ff062c676f3721e311d6adf5d20d0dbe7d5
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

1a9317ad994e2dd249321c0d199b1ff062c676f3721e311d6adf5d20d0dbe7d5

Threat Level: Shows suspicious behavior

The file 0156ee063a3f83784b3f480e71345a77_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 04:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 04:49

Reported

2024-06-22 04:51

Platform

win7-20240508-en

Max time kernel

117s

Max time network

118s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0156ee063a3f83784b3f480e71345a77_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-6DD9-A3B5-3465-8C1E748B1963} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.sh\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\ProgID\ = "0156ee063a3f83784b3f480e71345a77_JaffaCakes118.sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.sh C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.sh\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.sh\Clsid\ = "{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1684 wrote to memory of 1696 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1684 wrote to memory of 1696 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1684 wrote to memory of 1696 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1684 wrote to memory of 1696 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1684 wrote to memory of 1696 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1684 wrote to memory of 1696 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1684 wrote to memory of 1696 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\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.dll

Network

N/A

Files

memory/1696-0-0x00000000002C0000-0x0000000000352000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 04:49

Reported

2024-06-22 04:51

Platform

win10v2004-20240611-en

Max time kernel

135s

Max time network

128s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0156ee063a3f83784b3f480e71345a77_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-6DD9-A3B5-3465-8C1E748B1963} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.sh\Clsid\ = "{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\ProgID\ = "0156ee063a3f83784b3f480e71345a77_JaffaCakes118.sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-6DD9-A3B5-3465-8C1E748B1963}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.sh C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.sh\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.sh\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4120 wrote to memory of 1928 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4120 wrote to memory of 1928 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4120 wrote to memory of 1928 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\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\0156ee063a3f83784b3f480e71345a77_JaffaCakes118.dll

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1300,i,17325488789339133686,9539570259395798500,262144 --variations-seed-version --mojo-platform-channel-handle=4184 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp

Files

N/A