Malware Analysis Report

2025-03-15 00:50

Sample ID 240626-vcjxqatcjc
Target 12b3d6a87dd0e78597f763e5b9629947_JaffaCakes118
SHA256 5a8dc8550a61e4f46132b25259ce4524714309b5c507b9a7be3f2cf979738b73
Tags
defense_evasion privilege_escalation
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

5a8dc8550a61e4f46132b25259ce4524714309b5c507b9a7be3f2cf979738b73

Threat Level: Shows suspicious behavior

The file 12b3d6a87dd0e78597f763e5b9629947_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

defense_evasion privilege_escalation

Loads dropped DLL

Drops file in System32 directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Windows directory

Unsigned PE

Access Token Manipulation: Create Process with Token

Modifies registry class

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-26 16:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-26 16:50

Reported

2024-06-26 16:53

Platform

win7-20240508-en

Max time kernel

150s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\12b3d6a87dd0e78597f763e5b9629947_JaffaCakes118.dll,#1

Signatures

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\lua.wkl C:\Windows\SysWOW64\rundll32.exe N/A
File opened for modification C:\Windows\SysWOW64\lua.wkl C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\msocx.dll C:\Windows\SysWOW64\rundll32.exe N/A
File opened for modification C:\Windows\msocx.dll C:\Windows\SysWOW64\rundll32.exe N/A

Access Token Manipulation: Create Process with Token

defense_evasion privilege_escalation
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6} C:\Windows\SysWOW64\rundll32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "12b3d6a87dd0e78597f763e5b9629947_JaffaCakes118.dll,1294210682,73462361,-352895392" C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32 C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1684 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1684 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1684 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1684 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1684 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1684 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1684 wrote to memory of 2928 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2928 wrote to memory of 2164 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2928 wrote to memory of 2164 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2928 wrote to memory of 2164 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2928 wrote to memory of 2164 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2928 wrote to memory of 2164 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2928 wrote to memory of 2164 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2928 wrote to memory of 2164 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\12b3d6a87dd0e78597f763e5b9629947_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\12b3d6a87dd0e78597f763e5b9629947_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32 "C:\Windows\msocx.dll",_RunAs@16

Network

N/A

Files

memory/2928-4-0x0000000010000000-0x0000000010057000-memory.dmp

memory/2928-3-0x0000000010025000-0x0000000010026000-memory.dmp

memory/2928-2-0x0000000010000000-0x0000000010057000-memory.dmp

memory/2928-1-0x0000000010000000-0x0000000010057000-memory.dmp

memory/2928-0-0x0000000010000000-0x0000000010057000-memory.dmp

C:\Windows\msocx.dll

MD5 12b3d6a87dd0e78597f763e5b9629947
SHA1 8cf361dcab9fd8cbadcbe1314377778875cd9322
SHA256 5a8dc8550a61e4f46132b25259ce4524714309b5c507b9a7be3f2cf979738b73
SHA512 3dd04a6876f371c9d0a714cfc5099e58b090fe9a83ba88b7d91397f74a9bfcf2bbb955854aa8c2f90381ce94af347c265e23881994e79b19815dc3e2e196e1c7

memory/2164-8-0x0000000010000000-0x0000000010057000-memory.dmp

memory/2928-9-0x0000000010000000-0x0000000010057000-memory.dmp

memory/2164-10-0x0000000010000000-0x0000000010057000-memory.dmp

memory/2164-11-0x0000000010000000-0x0000000010057000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-26 16:50

Reported

2024-06-26 16:53

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\12b3d6a87dd0e78597f763e5b9629947_JaffaCakes118.dll,#1

Signatures

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\lua.wkl C:\Windows\SysWOW64\rundll32.exe N/A
File opened for modification C:\Windows\SysWOW64\lua.wkl C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\msocx.dll C:\Windows\SysWOW64\rundll32.exe N/A
File opened for modification C:\Windows\msocx.dll C:\Windows\SysWOW64\rundll32.exe N/A

Access Token Manipulation: Create Process with Token

defense_evasion privilege_escalation
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6} C:\Windows\SysWOW64\rundll32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "12b3d6a87dd0e78597f763e5b9629947_JaffaCakes118.dll,1294210682,73462361,-352895392" C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32 C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID C:\Windows\SysWOW64\rundll32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3636 wrote to memory of 4600 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3636 wrote to memory of 4600 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3636 wrote to memory of 4600 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4600 wrote to memory of 1748 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4600 wrote to memory of 1748 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4600 wrote to memory of 1748 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\12b3d6a87dd0e78597f763e5b9629947_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\12b3d6a87dd0e78597f763e5b9629947_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32 "C:\Windows\msocx.dll",_RunAs@16

Network

Files

memory/4600-0-0x0000000010000000-0x0000000010057000-memory.dmp

C:\Windows\msocx.dll

MD5 12b3d6a87dd0e78597f763e5b9629947
SHA1 8cf361dcab9fd8cbadcbe1314377778875cd9322
SHA256 5a8dc8550a61e4f46132b25259ce4524714309b5c507b9a7be3f2cf979738b73
SHA512 3dd04a6876f371c9d0a714cfc5099e58b090fe9a83ba88b7d91397f74a9bfcf2bbb955854aa8c2f90381ce94af347c265e23881994e79b19815dc3e2e196e1c7

memory/1748-5-0x0000000010000000-0x0000000010057000-memory.dmp

memory/4600-6-0x0000000010000000-0x0000000010057000-memory.dmp

memory/1748-7-0x0000000010000000-0x0000000010057000-memory.dmp