Malware Analysis Report

2025-01-18 22:01

Sample ID 240622-fmh1vayhlc
Target 016288107a4143572e5b5e2f35274d69_JaffaCakes118
SHA256 2dffcf0c7419293f9edc570d1d0e828d53e464cd5278a66ecf627c1d42d09250
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

2dffcf0c7419293f9edc570d1d0e828d53e464cd5278a66ecf627c1d42d09250

Threat Level: Shows suspicious behavior

The file 016288107a4143572e5b5e2f35274d69_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 04:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 04:59

Reported

2024-06-22 05:01

Platform

win7-20231129-en

Max time kernel

121s

Max time network

122s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\016288107a4143572e5b5e2f35274d69_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-1851-11E2-DF3D-8469DD4D6293} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\016288107a4143572e5b5e2f35274d69_JaffaCakes118.sh\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\016288107a4143572e5b5e2f35274d69_JaffaCakes118.sh\Clsid\ = "{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\ProgID\ = "016288107a4143572e5b5e2f35274d69_JaffaCakes118.sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\016288107a4143572e5b5e2f35274d69_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\016288107a4143572e5b5e2f35274d69_JaffaCakes118.sh C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\016288107a4143572e5b5e2f35274d69_JaffaCakes118.sh\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1688 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1688 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1688 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1688 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1688 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1688 wrote to memory of 2036 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1688 wrote to memory of 2036 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\016288107a4143572e5b5e2f35274d69_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\016288107a4143572e5b5e2f35274d69_JaffaCakes118.dll

Network

N/A

Files

memory/2036-0-0x0000000000620000-0x00000000006BD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 04:59

Reported

2024-06-22 05:01

Platform

win10v2004-20240611-en

Max time kernel

140s

Max time network

126s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\016288107a4143572e5b5e2f35274d69_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-1851-11E2-DF3D-8469DD4D6293} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\016288107a4143572e5b5e2f35274d69_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\016288107a4143572e5b5e2f35274d69_JaffaCakes118.sh C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\016288107a4143572e5b5e2f35274d69_JaffaCakes118.sh\ = "sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\016288107a4143572e5b5e2f35274d69_JaffaCakes118.sh\Clsid C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\016288107a4143572e5b5e2f35274d69_JaffaCakes118.sh\Clsid\ = "{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\ProgID C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\ProgID\ = "016288107a4143572e5b5e2f35274d69_JaffaCakes118.sh" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-1851-11E2-DF3D-8469DD4D6293}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2960 wrote to memory of 2976 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2960 wrote to memory of 2976 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 2960 wrote to memory of 2976 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\016288107a4143572e5b5e2f35274d69_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\016288107a4143572e5b5e2f35274d69_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 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/2976-0-0x00000000021C0000-0x000000000225D000-memory.dmp