Malware Analysis Report

2025-01-22 12:54

Sample ID 240521-rvyxtahb82
Target acab0388070b8034bbcb4e866bd40c6055d41c1b1a95a8105d245bf5a5581165
SHA256 acab0388070b8034bbcb4e866bd40c6055d41c1b1a95a8105d245bf5a5581165
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

acab0388070b8034bbcb4e866bd40c6055d41c1b1a95a8105d245bf5a5581165

Threat Level: Shows suspicious behavior

The file acab0388070b8034bbcb4e866bd40c6055d41c1b1a95a8105d245bf5a5581165 was found to be: Shows suspicious behavior.

Malicious Activity Summary

vmprotect

VMProtect packed file

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-21 14:31

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

2024-05-21 14:31

Reported

2024-05-21 14:34

Platform

win7-20240220-en

Max time kernel

121s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\acab0388070b8034bbcb4e866bd40c6055d41c1b1a95a8105d245bf5a5581165.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 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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2368 wrote to memory of 3036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 3036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 3036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 3036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 3036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 3036 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2368 wrote to memory of 3036 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\acab0388070b8034bbcb4e866bd40c6055d41c1b1a95a8105d245bf5a5581165.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\acab0388070b8034bbcb4e866bd40c6055d41c1b1a95a8105d245bf5a5581165.dll,#1

Network

N/A

Files

memory/3036-2-0x0000000000200000-0x0000000000201000-memory.dmp

memory/3036-0-0x0000000000200000-0x0000000000201000-memory.dmp

memory/3036-4-0x0000000000200000-0x0000000000201000-memory.dmp

memory/3036-6-0x0000000073636000-0x000000007394C000-memory.dmp

memory/3036-5-0x0000000073630000-0x0000000073E8F000-memory.dmp

memory/3036-7-0x0000000073636000-0x000000007394C000-memory.dmp

memory/3036-8-0x0000000073630000-0x0000000073E8F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-21 14:31

Reported

2024-05-21 14:34

Platform

win10v2004-20240508-en

Max time kernel

142s

Max time network

126s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\acab0388070b8034bbcb4e866bd40c6055d41c1b1a95a8105d245bf5a5581165.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

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2944 wrote to memory of 1996 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2944 wrote to memory of 1996 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2944 wrote to memory of 1996 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\acab0388070b8034bbcb4e866bd40c6055d41c1b1a95a8105d245bf5a5581165.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\acab0388070b8034bbcb4e866bd40c6055d41c1b1a95a8105d245bf5a5581165.dll,#1

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
NL 23.62.61.121:443 www.bing.com tcp
US 8.8.8.8:53 121.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.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 8.8.8.8:53 26.35.223.20.in-addr.arpa udp

Files

memory/1996-0-0x0000000074E06000-0x000000007511C000-memory.dmp

memory/1996-3-0x0000000074E00000-0x000000007565F000-memory.dmp

memory/1996-1-0x0000000000930000-0x0000000000931000-memory.dmp

memory/1996-4-0x0000000074E00000-0x000000007565F000-memory.dmp

memory/1996-5-0x0000000074E00000-0x000000007565F000-memory.dmp

memory/1996-6-0x0000000074E06000-0x000000007511C000-memory.dmp