Malware Analysis Report

2024-11-15 05:40

Sample ID 240604-bz1n7shd95
Target 3e54245fb579c525a1ee9f8830a12194.bin
SHA256 14e0664768af7e1f214f6c78d40b95033a8388fba267d512151a3a5cfd3de3ed
Tags
stealc vidar discovery spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

14e0664768af7e1f214f6c78d40b95033a8388fba267d512151a3a5cfd3de3ed

Threat Level: Known bad

The file 3e54245fb579c525a1ee9f8830a12194.bin was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Stealc

Vidar

Detect Vidar Stealer

Downloads MZ/PE file

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Checks computer location settings

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Enumerates physical storage devices

Program crash

Checks processor information in registry

Delays execution with timeout.exe

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-04 01:35

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-04 01:35

Reported

2024-06-04 01:38

Platform

win10v2004-20240426-en

Max time kernel

92s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
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Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4508 set thread context of 4272 N/A C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4508 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4508 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4508 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4508 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4508 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4508 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4508 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4508 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4508 wrote to memory of 4272 N/A C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4272 wrote to memory of 2192 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\cmd.exe
PID 4272 wrote to memory of 2192 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\cmd.exe
PID 4272 wrote to memory of 2192 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\cmd.exe
PID 2192 wrote to memory of 5688 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2192 wrote to memory of 5688 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2192 wrote to memory of 5688 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe

"C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\HCFBFBAEBKJK" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 22.249.124.192.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 245.158.13.49.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 tcp
DE 49.13.158.245:5432 tcp
DE 49.13.158.245:5432 tcp
DE 49.13.158.245:5432 tcp
DE 49.13.158.245:5432 tcp
DE 49.13.158.245:5432 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/4508-0-0x00000000003D0000-0x00000000003D1000-memory.dmp

memory/4508-2-0x00000000003D0000-0x00000000003D1000-memory.dmp

memory/4272-1-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4272-6-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4272-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4272-20-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4272-21-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4272-23-0x000000001B8D0000-0x000000001BB2F000-memory.dmp

memory/4272-38-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4272-39-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4272-55-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4272-56-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4272-70-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4272-71-0x0000000000400000-0x0000000000649000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-04 01:35

Reported

2024-06-04 01:38

Platform

win7-20240508-en

Max time kernel

122s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe

"C:\Users\Admin\AppData\Local\Temp\3ab231d18be903a1364b8ed968ee9ac3fe1a82bb75235ec8e7088b76b87b518a.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1284 -s 52

Network

N/A

Files

memory/1284-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1284-1-0x0000000000020000-0x0000000000021000-memory.dmp