Malware Analysis Report

2025-01-22 12:57

Sample ID 240626-c9gvhstalj
Target 1077cc6d82e981ac14190585c5c33671_JaffaCakes118
SHA256 8a2ab137b7234b06455969b3828a3b30941460dfaa06c55d46b46cb259b28dbd
Tags
vmprotect
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

8a2ab137b7234b06455969b3828a3b30941460dfaa06c55d46b46cb259b28dbd

Threat Level: Shows suspicious behavior

The file 1077cc6d82e981ac14190585c5c33671_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

vmprotect

VMProtect packed file

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-26 02:46

Signatures

VMProtect packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-26 02:46

Reported

2024-06-26 02:48

Platform

win7-20240220-en

Max time kernel

118s

Max time network

119s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1077cc6d82e981ac14190585c5c33671_JaffaCakes118.dll,#1

Signatures

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
N/A N/A N/A N/A
N/A N/A N/A N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2172 wrote to memory of 2836 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2836 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2836 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2836 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2836 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2836 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2172 wrote to memory of 2836 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1077cc6d82e981ac14190585c5c33671_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1077cc6d82e981ac14190585c5c33671_JaffaCakes118.dll,#1

Network

N/A

Files

memory/2836-3-0x0000000010000000-0x000000001015D000-memory.dmp

memory/2836-2-0x0000000010000000-0x000000001015D000-memory.dmp

memory/2836-1-0x0000000010000000-0x000000001015D000-memory.dmp

memory/2836-0-0x0000000010000000-0x000000001015D000-memory.dmp

memory/2836-4-0x0000000010000000-0x000000001015D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-26 02:46

Reported

2024-06-26 02:48

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1077cc6d82e981ac14190585c5c33671_JaffaCakes118.dll,#1

Signatures

VMProtect packed file

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

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3080 wrote to memory of 2280 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3080 wrote to memory of 2280 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3080 wrote to memory of 2280 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1077cc6d82e981ac14190585c5c33671_JaffaCakes118.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\1077cc6d82e981ac14190585c5c33671_JaffaCakes118.dll,#1

Network

Files

memory/2280-0-0x0000000010000000-0x000000001015D000-memory.dmp

memory/2280-1-0x0000000010000000-0x000000001015D000-memory.dmp