Malware Analysis Report

2025-01-18 21:37

Sample ID 240415-nd7xlsfd5v
Target f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118
SHA256 d8e10ad3c03c7c6710abe1661b777907af72e1ca6534f3dfc48aa5d7adfed9f2
Tags
adware stealer
score
6/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
6/10

SHA256

d8e10ad3c03c7c6710abe1661b777907af72e1ca6534f3dfc48aa5d7adfed9f2

Threat Level: Shows suspicious behavior

The file f0ee4e2f5edd9ce5a8fd63825e477131_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

2024-04-15 11:17

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-15 11:17

Reported

2024-04-15 11:20

Platform

win10v2004-20240412-en

Max time kernel

148s

Max time network

153s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f0ee4e2f5edd9ce5a8fd63825e477131_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-D8E2-8D1F-34A9-1C9B28377E3C} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.sb\ = "sb" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.sb\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.sb\Clsid\ = "{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\ = "sb" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.sb C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\ProgID\ = "f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.sb" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1840 wrote to memory of 244 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1840 wrote to memory of 244 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1840 wrote to memory of 244 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\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 241.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 98.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 11.179.89.13.in-addr.arpa udp

Files

memory/244-0-0x00000000008C0000-0x000000000095E000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-15 11:17

Reported

2024-04-15 11:20

Platform

win7-20240221-en

Max time kernel

120s

Max time network

121s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f0ee4e2f5edd9ce5a8fd63825e477131_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-D8E2-8D1F-34A9-1C9B28377E3C} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.sb\ = "sb" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.sb\Clsid\ = "{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\ProgID\ = "f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.sb" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.sb C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.sb\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-D8E2-8D1F-34A9-1C9B28377E3C}\ = "sb" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2192 wrote to memory of 2144 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2192 wrote to memory of 2144 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2192 wrote to memory of 2144 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2192 wrote to memory of 2144 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2192 wrote to memory of 2144 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2192 wrote to memory of 2144 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2192 wrote to memory of 2144 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\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\f0ee4e2f5edd9ce5a8fd63825e477131_JaffaCakes118.dll

Network

N/A

Files

memory/2144-0-0x0000000000280000-0x000000000031E000-memory.dmp