Malware Analysis Report

2025-08-05 21:11

Sample ID 231231-mk2hqsfcf3
Target 32b60218ba38edb80b6fddaddfdd55de
SHA256 657adb75aae143a6f3026be0c05779da771646cda870527bf31d0bfefa732a4f
Tags
vmprotect upx
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

657adb75aae143a6f3026be0c05779da771646cda870527bf31d0bfefa732a4f

Threat Level: Shows suspicious behavior

The file 32b60218ba38edb80b6fddaddfdd55de was found to be: Shows suspicious behavior.

Malicious Activity Summary

vmprotect upx

VMProtect packed file

UPX packed file

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-31 10:32

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

2023-12-31 10:32

Reported

2024-01-10 08:47

Platform

win7-20231215-en

Max time kernel

118s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\32b60218ba38edb80b6fddaddfdd55de.dll,#1

Signatures

UPX packed file

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

VMProtect packed file

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

Program crash

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

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2532 wrote to memory of 2216 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2532 wrote to memory of 2216 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2532 wrote to memory of 2216 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2532 wrote to memory of 2216 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2532 wrote to memory of 2216 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2532 wrote to memory of 2216 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2532 wrote to memory of 2216 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\32b60218ba38edb80b6fddaddfdd55de.dll,#1

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\32b60218ba38edb80b6fddaddfdd55de.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2216 -s 300

Network

N/A

Files

memory/2216-2-0x0000000010000000-0x0000000010944000-memory.dmp

memory/2216-5-0x0000000000170000-0x0000000000171000-memory.dmp

memory/2216-7-0x00000000771E0000-0x00000000771E1000-memory.dmp

memory/2216-17-0x0000000000190000-0x000000000019B000-memory.dmp

memory/2216-12-0x0000000000180000-0x0000000000181000-memory.dmp

memory/2216-11-0x00000000001A0000-0x00000000001A1000-memory.dmp

memory/2216-10-0x0000000000190000-0x000000000019B000-memory.dmp

memory/2216-3-0x0000000000170000-0x0000000000171000-memory.dmp

memory/2216-0-0x0000000000170000-0x0000000000171000-memory.dmp

memory/2216-18-0x0000000000190000-0x000000000019B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-31 10:32

Reported

2024-01-10 08:47

Platform

win10v2004-20231222-en

Max time kernel

145s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\32b60218ba38edb80b6fddaddfdd55de.dll,#1

Signatures

UPX packed file

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

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4412 wrote to memory of 1776 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4412 wrote to memory of 1776 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4412 wrote to memory of 1776 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\32b60218ba38edb80b6fddaddfdd55de.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\32b60218ba38edb80b6fddaddfdd55de.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 20.177.190.20.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 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
N/A 4.231.128.59:443 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 33.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 203.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 udp
N/A 20.189.173.16:443 tcp
US 8.8.8.8:53 udp

Files

memory/1776-0-0x0000000000A80000-0x0000000000A81000-memory.dmp

memory/1776-1-0x0000000010000000-0x0000000010944000-memory.dmp

memory/1776-2-0x0000000010000000-0x0000000010944000-memory.dmp

memory/1776-8-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

memory/1776-13-0x0000000000CE0000-0x0000000000CEB000-memory.dmp

memory/1776-12-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

memory/1776-7-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

memory/1776-6-0x0000000000CE0000-0x0000000000CEB000-memory.dmp