Malware Analysis Report

2025-03-15 05:51

Sample ID 240628-a7m8easajh
Target 182e8844a6b5254a766fe18bffd33ded_JaffaCakes118
SHA256 4a640a4d7297b2a880b2583cb60bed9d7d28d898afd6680202dcb58340d970a1
Tags
persistence vmprotect
score
10/10

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
10/10

SHA256

4a640a4d7297b2a880b2583cb60bed9d7d28d898afd6680202dcb58340d970a1

Threat Level: Known bad

The file 182e8844a6b5254a766fe18bffd33ded_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

persistence vmprotect

Modifies WinLogon for persistence

Loads dropped DLL

VMProtect packed file

Deletes itself

Drops file in Program Files directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 00:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 00:51

Reported

2024-06-28 00:53

Platform

win7-20240508-en

Max time kernel

150s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe"

Signatures

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\WINDOWS\\system32\\userinit.exe,rundll32.exe c:\\Progra~1\\mhzx\\tlmhzx1104.dll Start," C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A

Deletes itself

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

Loads dropped DLL

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

VMProtect packed file

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

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\tlmhzx2.dat C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A
File created C:\Program Files\mhzx\tlmhzx1104.dll C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A
File opened for modification C:\Program Files\tlmhzx.dat C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A
File created C:\Program Files\tlmhzx.dat C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A
File opened for modification C:\Program Files\tlmhzx2.dat C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.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 SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1916 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 1916 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 1916 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 1916 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 1916 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 1916 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 1916 wrote to memory of 2420 N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe C:\Windows\SysWOW64\rundll32.exe
PID 1916 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 1916 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 1916 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 1916 wrote to memory of 2868 N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe"

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\system32\rundll32.exe c:\Progra~1\mhzx\tlmhzx1104.dll Start

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\182E88~1.EXE

Network

N/A

Files

\??\c:\Progra~1\mhzx\tlmhzx1104.dll

MD5 e04083dfa409bac154de3f1c5d885aa6
SHA1 5894984bffdac2cccd6208bf881ac031e046bcb3
SHA256 11914c0d7ff1d935778e94e6c268cfd72cceb0b99bfc685d45011d8a732d5eeb
SHA512 3bacc86e424b15cfd6e0ac694a56b1c250ceeda6b41e3b5732717d6a8eed480587a071c62284245f3a92675088c8595ae8b260586148bacdbaf3c605fad82e27

memory/2420-10-0x0000000010000000-0x000000001000D000-memory.dmp

memory/2420-11-0x0000000010000000-0x000000001000D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 00:51

Reported

2024-06-28 00:53

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe"

Signatures

Modifies WinLogon for persistence

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\WINDOWS\\system32\\userinit.exe,rundll32.exe c:\\Progra~1\\mhzx\\tlmhzx1104.dll Start," C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A

Loads dropped DLL

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

VMProtect packed file

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

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files\tlmhzx.dat C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A
File created C:\Program Files\tlmhzx.dat C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A
File opened for modification C:\Program Files\tlmhzx2.dat C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A
File created C:\Program Files\tlmhzx2.dat C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A
File created C:\Program Files\mhzx\tlmhzx1104.dll C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.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 SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\182e8844a6b5254a766fe18bffd33ded_JaffaCakes118.exe"

C:\Windows\SysWOW64\rundll32.exe

C:\Windows\system32\rundll32.exe c:\Progra~1\mhzx\tlmhzx1104.dll Start

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\182E88~1.EXE

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
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 57.15.31.184.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.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 udp

Files

\??\c:\Progra~1\mhzx\tlmhzx1104.dll

MD5 e04083dfa409bac154de3f1c5d885aa6
SHA1 5894984bffdac2cccd6208bf881ac031e046bcb3
SHA256 11914c0d7ff1d935778e94e6c268cfd72cceb0b99bfc685d45011d8a732d5eeb
SHA512 3bacc86e424b15cfd6e0ac694a56b1c250ceeda6b41e3b5732717d6a8eed480587a071c62284245f3a92675088c8595ae8b260586148bacdbaf3c605fad82e27

memory/724-7-0x0000000010000000-0x000000001000D000-memory.dmp

memory/724-8-0x0000000010000000-0x000000001000D000-memory.dmp