Malware Analysis Report

2025-03-15 05:55

Sample ID 240513-zpntnadd4s
Target 45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0
SHA256 45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0
Tags
vmprotect persistence
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

45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0

Threat Level: Known bad

The file 45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0 was found to be: Known bad.

Malicious Activity Summary

vmprotect persistence

Detects executables packed with VMProtect.

Detects executables packed with VMProtect.

Modifies AppInit DLL entries

VMProtect packed file

Executes dropped EXE

Drops file in Program Files directory

Unsigned PE

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-13 20:53

Signatures

Detects executables packed with VMProtect.

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

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

2024-05-13 20:53

Reported

2024-05-13 20:56

Platform

win7-20240220-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0.exe"

Signatures

Detects executables packed with 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

Modifies AppInit DLL entries

persistence

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\PROGRA~3\Mozilla\wrvdfyg.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:\PROGRA~3\Mozilla\wrvdfyg.exe C:\Users\Admin\AppData\Local\Temp\45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0.exe N/A
File created C:\PROGRA~3\Mozilla\klztrnd.dll C:\PROGRA~3\Mozilla\wrvdfyg.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0.exe N/A
N/A N/A C:\PROGRA~3\Mozilla\wrvdfyg.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2300 wrote to memory of 1316 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\wrvdfyg.exe
PID 2300 wrote to memory of 1316 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\wrvdfyg.exe
PID 2300 wrote to memory of 1316 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\wrvdfyg.exe
PID 2300 wrote to memory of 1316 N/A C:\Windows\system32\taskeng.exe C:\PROGRA~3\Mozilla\wrvdfyg.exe

Processes

C:\Users\Admin\AppData\Local\Temp\45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0.exe

"C:\Users\Admin\AppData\Local\Temp\45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {9D4CC234-13FF-40B8-8F85-39C358FDE676} S-1-5-18:NT AUTHORITY\System:Service:

C:\PROGRA~3\Mozilla\wrvdfyg.exe

C:\PROGRA~3\Mozilla\wrvdfyg.exe -hzyjzia

Network

N/A

Files

memory/1724-0-0x0000000000400000-0x00000000009AA000-memory.dmp

memory/1724-3-0x0000000000400000-0x000000000045B000-memory.dmp

memory/1724-2-0x0000000000250000-0x00000000002AB000-memory.dmp

memory/1724-5-0x0000000000400000-0x000000000045B000-memory.dmp

C:\PROGRA~3\Mozilla\wrvdfyg.exe

MD5 10045e319b4319a4dc1b3c66372f9d42
SHA1 9e5494414d96beded61b25eac9eb097f8a5128f3
SHA256 50fe7bfce49f54fdaaf7e92eacdec0feb5816379389f47f68a0bdde734a2acb8
SHA512 256be9162da3a0f3bd7c10da78bc32cdcca5971bec1940a4a84ca5ccf985f4b17bbe45702099238ac00665f77d052e085c9296abe64bae9b03bb0f0fa128dd4c

memory/1316-8-0x0000000000400000-0x00000000009AA000-memory.dmp

memory/1316-11-0x0000000000400000-0x000000000045B000-memory.dmp

memory/1316-10-0x00000000009B0000-0x0000000000A0B000-memory.dmp

memory/1316-13-0x0000000000400000-0x000000000045B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-13 20:53

Reported

2024-05-13 20:56

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0.exe"

Signatures

Detects executables packed with 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

Modifies AppInit DLL entries

persistence

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\PROGRA~3\Mozilla\wjkphye.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:\PROGRA~3\Mozilla\wjkphye.exe C:\Users\Admin\AppData\Local\Temp\45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0.exe N/A
File created C:\PROGRA~3\Mozilla\cqrorok.dll C:\PROGRA~3\Mozilla\wjkphye.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0.exe

"C:\Users\Admin\AppData\Local\Temp\45bc3d976ceeb44d4cedc5482b8cd34f5941970170fda68ecaf4d72508368da0.exe"

C:\PROGRA~3\Mozilla\wjkphye.exe

C:\PROGRA~3\Mozilla\wjkphye.exe -srbnrsa

Network

Country Destination Domain Proto
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 37.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 48.28.101.95.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/2240-0-0x0000000000400000-0x00000000009AA000-memory.dmp

memory/2240-3-0x0000000000400000-0x000000000045B000-memory.dmp

memory/2240-2-0x0000000002610000-0x000000000266B000-memory.dmp

C:\ProgramData\Mozilla\wjkphye.exe

MD5 b472f72f9a5bf5fe237cbfae6e8b97b5
SHA1 15e11bcb9f8dda0b7524f0844b253505d478e33e
SHA256 73c93ea38c0ed2582d2ed6341f5e2dc8212e5c316db753ef5c81a448362777b6
SHA512 b4534230ff288969e4005fd09c1163f6768be6d671be4c5c028ca8a1d2a75fd460710a35109d14b998148bfa952e686e801ea5eca7cf761702618296f162ec2c

memory/2240-8-0x0000000000400000-0x000000000045B000-memory.dmp

memory/4644-9-0x0000000000400000-0x00000000009AA000-memory.dmp

memory/4644-11-0x0000000000400000-0x00000000009AA000-memory.dmp

memory/4644-12-0x0000000000400000-0x00000000009AA000-memory.dmp

memory/4644-15-0x0000000000400000-0x000000000045B000-memory.dmp