Malware Analysis Report

2025-01-18 21:54

Sample ID 240622-m3z3mayhkp
Target 01cc898a2c86fca65dc1e3c1a93bd4c4_JaffaCakes118
SHA256 372535f1ec23319770158aa6d6ee9b7edd6ef74aa618aa946fb29b8a023f779e
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

372535f1ec23319770158aa6d6ee9b7edd6ef74aa618aa946fb29b8a023f779e

Threat Level: Shows suspicious behavior

The file 01cc898a2c86fca65dc1e3c1a93bd4c4_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 11:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-22 11:00

Reported

2024-06-22 11:02

Platform

win7-20240508-en

Max time kernel

118s

Max time network

118s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\01cc898a2c86fca65dc1e3c1a93bd4c4_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\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\01cc898a2c86fca65dc1e3c1a93bd4c4_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\ = "Info cache" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\FLAGS\ = "0" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ = "IIEHelperObj2" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\ = "Pctools 1.0 Type Library" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0\win32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\HELPDIR C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\Version = "1.0" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ = "IIEHelperObj2" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0} C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\FLAGS C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\Version = "1.0" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\01cc898a2c86fca65dc1e3c1a93bd4c4_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1744 wrote to memory of 2908 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1744 wrote to memory of 2908 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1744 wrote to memory of 2908 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1744 wrote to memory of 2908 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1744 wrote to memory of 2908 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1744 wrote to memory of 2908 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1744 wrote to memory of 2908 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\01cc898a2c86fca65dc1e3c1a93bd4c4_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\01cc898a2c86fca65dc1e3c1a93bd4c4_JaffaCakes118.dll

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-22 11:00

Reported

2024-06-22 11:02

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

151s

Command Line

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\01cc898a2c86fca65dc1e3c1a93bd4c4_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\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0} C:\Windows\SysWOW64\regsvr32.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ThreadingModel = "Apartment" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\FLAGS\ = "0" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\Version = "1.0" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ = "IIEHelperObj2" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\Version = "1.0" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\ = "Info cache" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\01cc898a2c86fca65dc1e3c1a93bd4c4_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0\win32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0 C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\HELPDIR C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{385AB8C6-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\FLAGS C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ = "IIEHelperObj2" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32 C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\ = "Pctools 1.0 Type Library" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\01cc898a2c86fca65dc1e3c1a93bd4c4_JaffaCakes118.dll" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0} C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib\ = "{385AB8C5-FB22-4D17-8834-064E2BA0A6F0}" C:\Windows\SysWOW64\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" C:\Windows\SysWOW64\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{385AB8C4-FB22-4D17-8834-064E2BA0A6F0}\TypeLib C:\Windows\SysWOW64\regsvr32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1000 wrote to memory of 1440 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1000 wrote to memory of 1440 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 1000 wrote to memory of 1440 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\01cc898a2c86fca65dc1e3c1a93bd4c4_JaffaCakes118.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\01cc898a2c86fca65dc1e3c1a93bd4c4_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 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 35.15.31.184.in-addr.arpa udp
US 8.8.8.8:53 99.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.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 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 104.193.132.51.in-addr.arpa udp

Files

N/A