Malware Analysis Report

2025-08-11 01:20

Sample ID 231222-pnwsrscch8
Target 8c145eb875f43b858165976bd3e556ab
SHA256 9e984b6cb5b8b48bb48b32db26ff7e4f7329aed6b813a3aae5b3a10b345d10ba
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

9e984b6cb5b8b48bb48b32db26ff7e4f7329aed6b813a3aae5b3a10b345d10ba

Threat Level: Shows suspicious behavior

The file 8c145eb875f43b858165976bd3e556ab was found to be: Shows suspicious behavior.

Malicious Activity Summary

vmprotect

VMProtect packed file

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-22 12:29

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

2023-12-22 12:29

Reported

2023-12-23 15:14

Platform

win7-20231215-en

Max time kernel

140s

Max time network

118s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8c145eb875f43b858165976bd3e556ab.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
N/A N/A N/A N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1660 wrote to memory of 2148 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1660 wrote to memory of 2148 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1660 wrote to memory of 2148 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1660 wrote to memory of 2148 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1660 wrote to memory of 2148 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1660 wrote to memory of 2148 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1660 wrote to memory of 2148 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8c145eb875f43b858165976bd3e556ab.dll,#1

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8c145eb875f43b858165976bd3e556ab.dll,#1

Network

N/A

Files

memory/2148-1-0x0000000002260000-0x0000000002419000-memory.dmp

memory/2148-4-0x0000000002260000-0x0000000002419000-memory.dmp

memory/2148-3-0x0000000002260000-0x0000000002419000-memory.dmp

memory/2148-2-0x0000000002260000-0x0000000002419000-memory.dmp

memory/2148-0-0x0000000002260000-0x0000000002419000-memory.dmp

memory/2148-5-0x0000000002260000-0x0000000002419000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-22 12:29

Reported

2023-12-23 15:14

Platform

win10v2004-20231222-en

Max time kernel

141s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8c145eb875f43b858165976bd3e556ab.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3864 wrote to memory of 1168 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3864 wrote to memory of 1168 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3864 wrote to memory of 1168 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8c145eb875f43b858165976bd3e556ab.dll,#1

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\8c145eb875f43b858165976bd3e556ab.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/1168-0-0x00000000023D0000-0x0000000002589000-memory.dmp

memory/1168-2-0x00000000023D0000-0x0000000002589000-memory.dmp

memory/1168-1-0x00000000023D0000-0x0000000002589000-memory.dmp

memory/1168-3-0x00000000023D0000-0x0000000002589000-memory.dmp