Malware Analysis Report

2025-03-15 05:55

Sample ID 240514-zzcjdage6v
Target fvZwhyC.exe
SHA256 798281b4ddeb59cd38c9d39805434e12af3c59b598eb733b46f7bc311623affb
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 Overview

score
7/10

SHA256

798281b4ddeb59cd38c9d39805434e12af3c59b598eb733b46f7bc311623affb

Threat Level: Shows suspicious behavior

The file fvZwhyC.exe was found to be: Shows suspicious behavior.

Malicious Activity Summary

vmprotect

VMProtect packed file

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-14 21:08

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

2024-05-14 21:08

Reported

2024-05-14 21:09

Platform

win10v2004-20240508-en

Max time kernel

15s

Max time network

18s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fvZwhyC.exe"

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:\Users\Admin\AppData\Local\Temp\fvZwhyC.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\fvZwhyC.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\fvZwhyC.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2408 wrote to memory of 4728 N/A C:\Users\Admin\AppData\Local\Temp\fvZwhyC.exe C:\Windows\system32\cmd.exe
PID 2408 wrote to memory of 4728 N/A C:\Users\Admin\AppData\Local\Temp\fvZwhyC.exe C:\Windows\system32\cmd.exe
PID 4728 wrote to memory of 760 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\certutil.exe
PID 4728 wrote to memory of 760 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\certutil.exe
PID 4728 wrote to memory of 3936 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\find.exe
PID 4728 wrote to memory of 3936 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\find.exe
PID 4728 wrote to memory of 3032 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\find.exe
PID 4728 wrote to memory of 3032 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\find.exe

Processes

C:\Users\Admin\AppData\Local\Temp\fvZwhyC.exe

"C:\Users\Admin\AppData\Local\Temp\fvZwhyC.exe"

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\fvZwhyC.exe" MD5 | find /i /v "md5" | find /i /v "certutil"

C:\Windows\system32\certutil.exe

certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\fvZwhyC.exe" MD5

C:\Windows\system32\find.exe

find /i /v "md5"

C:\Windows\system32\find.exe

find /i /v "certutil"

Network

Country Destination Domain Proto
US 8.8.8.8:53 keyauth.win udp
US 172.67.72.57:443 keyauth.win tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 57.72.67.172.in-addr.arpa udp
US 8.8.8.8:53 x2.c.lencr.org udp
BE 2.21.17.29:80 x2.c.lencr.org tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.106:443 www.bing.com tcp
US 8.8.8.8:53 29.17.21.2.in-addr.arpa udp
US 8.8.8.8:53 203.197.79.204.in-addr.arpa udp
N/A 127.0.0.1:56960 tcp
N/A 127.0.0.1:56962 tcp
NL 23.62.61.106:443 www.bing.com tcp
US 8.8.8.8:53 106.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 172.67.72.57:443 keyauth.win tcp
N/A 127.0.0.1:56976 tcp
N/A 127.0.0.1:56978 tcp

Files

memory/2408-0-0x00000001400BE000-0x00000001403F7000-memory.dmp

memory/2408-3-0x0000000140000000-0x000000014092B000-memory.dmp

memory/2408-2-0x00007FFB38CA0000-0x00007FFB38CA2000-memory.dmp

memory/2408-1-0x00007FFB38C90000-0x00007FFB38C92000-memory.dmp

memory/2408-7-0x00000001400BE000-0x00000001403F7000-memory.dmp

memory/2408-8-0x0000000140000000-0x000000014092B000-memory.dmp