Malware Analysis Report

2025-01-18 21:40

Sample ID 240415-msnlvace48
Target f0dec3ea2870f52e98725783216fecb2_JaffaCakes118
SHA256 4b92a9a55bbd077ecec112586bc6400e8ef90ddde478c1cbcfeecb208e85f8a9
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

4b92a9a55bbd077ecec112586bc6400e8ef90ddde478c1cbcfeecb208e85f8a9

Threat Level: Shows suspicious behavior

The file f0dec3ea2870f52e98725783216fecb2_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx adware stealer

UPX packed file

ACProtect 1.3x - 1.4x DLL software

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 10:43

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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-15 10:43

Reported

2024-04-15 10:46

Platform

win7-20240221-en

Max time kernel

122s

Max time network

125s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f0dec3ea2870f52e98725783216fecb2_JaffaCakes118.dll

Signatures

UPX packed file

upx
Description Indicator Process Target
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\{7C1072E2-42F0-4687-800F-67E68179A9B0} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7C1072E2-42F0-4687-800F-67E68179A9B0}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7C1072E2-42F0-4687-800F-67E68179A9B0} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7C1072E2-42F0-4687-800F-67E68179A9B0}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f0dec3ea2870f52e98725783216fecb2_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7C1072E2-42F0-4687-800F-67E68179A9B0}\InprocServer32\ThreadingModel = "apartment" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2132 wrote to memory of 1380 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2132 wrote to memory of 1380 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2132 wrote to memory of 1380 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2132 wrote to memory of 1380 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2132 wrote to memory of 1380 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2132 wrote to memory of 1380 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2132 wrote to memory of 1380 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\f0dec3ea2870f52e98725783216fecb2_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\f0dec3ea2870f52e98725783216fecb2_JaffaCakes118.dll

Network

N/A

Files

memory/1380-0-0x0000000000400000-0x000000000043C000-memory.dmp

memory/1380-1-0x0000000000400000-0x000000000043C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-15 10:43

Reported

2024-04-15 10:46

Platform

win10v2004-20240412-en

Max time kernel

92s

Max time network

112s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f0dec3ea2870f52e98725783216fecb2_JaffaCakes118.dll

Signatures

UPX packed file

upx
Description Indicator Process Target
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\{3F6BBA47-095D-462A-B0E9-CEDEA554C34A} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3F6BBA47-095D-462A-B0E9-CEDEA554C34A}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3F6BBA47-095D-462A-B0E9-CEDEA554C34A} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3F6BBA47-095D-462A-B0E9-CEDEA554C34A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f0dec3ea2870f52e98725783216fecb2_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{3F6BBA47-095D-462A-B0E9-CEDEA554C34A}\InprocServer32\ThreadingModel = "apartment" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4960 wrote to memory of 3076 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4960 wrote to memory of 3076 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4960 wrote to memory of 3076 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\f0dec3ea2870f52e98725783216fecb2_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\f0dec3ea2870f52e98725783216fecb2_JaffaCakes118.dll

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/3076-0-0x0000000000400000-0x000000000043C000-memory.dmp