Malware Analysis Report

2025-06-15 19:32

Sample ID 240602-bxr92sec8v
Target 8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118
SHA256 887619b383c1d349743e62e214418b24ebb1027a97e8572308dc9d635db3a045
Tags
discovery evasion persistence trojan
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

887619b383c1d349743e62e214418b24ebb1027a97e8572308dc9d635db3a045

Threat Level: Shows suspicious behavior

The file 8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery evasion persistence trojan

Registers COM server for autorun

Checks whether UAC is enabled

Checks installed software on the system

Unsigned PE

Modifies Internet Explorer settings

Modifies registry class

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-02 01:31

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-02 01:31

Reported

2024-06-02 01:34

Platform

win7-20240508-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe"

Signatures

Registers COM server for autorun

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32\ServerExecutable = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32 C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A

Checks installed software on the system

discovery

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A

Modifies Internet Explorer settings

adware spyware
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\FLAGS C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\0\win32 C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib\Version = "1.0" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Interface C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ = "ITinyJSObject" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0 C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32\ServerExecutable = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\FLAGS\ = "0" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\0 C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\HELPDIR C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ = "ITinyJSObject" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\Programmable C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\TypeLib C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\Interface C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib\ = "{157B1AA6-3E5C-404A-9118-C1D91F537040}" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\Version C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040} C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326} C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\TypeLib\ = "{7E77E9F2-D76B-4D54-B515-9A7F93DF03DF}" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\LocalServer32 C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326} C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\Version\ = "1.0" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\ = "TinyJSObject Class" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5}\TypeLib C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\TypeLib\{157B1AA6-3E5C-404A-9118-C1D91F537040}\1.0\ = "JSIELib" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ProxyStubClsid32 C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib\ = "{157B1AA6-3E5C-404A-9118-C1D91F537040}" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\ProxyStubClsid32 C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Interface\{3B3F3AAD-FB97-49FF-BFEE-D22869AC4326}\TypeLib\Version = "1.0" C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000_CLASSES\Wow6432Node\CLSID\{F28C2F70-47DE-4EA5-8F6D-7D1476CD1EF5} C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 r1.joburnt.net udp
US 8.8.8.8:53 c1.allocal.info udp
US 8.8.8.8:53 c2.allocal.info udp

Files

memory/2008-2-0x0000000000850000-0x0000000000995000-memory.dmp

memory/2008-11-0x0000000000850000-0x0000000000995000-memory.dmp

memory/2008-10-0x0000000000850000-0x0000000000995000-memory.dmp

memory/2008-9-0x0000000000850000-0x0000000000995000-memory.dmp

memory/2008-13-0x0000000000170000-0x0000000000171000-memory.dmp

memory/2008-15-0x0000000000170000-0x0000000000171000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-02 01:31

Reported

2024-06-02 01:34

Platform

win10v2004-20240426-en

Max time kernel

92s

Max time network

99s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8c77726d839fa234d7aba4e43cdf3898_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp

Files

memory/1648-2-0x0000000002E30000-0x0000000002F75000-memory.dmp

memory/1648-9-0x0000000002E30000-0x0000000002F75000-memory.dmp