Malware Analysis Report

2024-11-15 05:40

Sample ID 240604-byjdjahd49
Target 7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe
SHA256 7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877
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: 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

7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877

Threat Level: Known bad

The file 7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

Vidar

Detect binaries embedding considerable number of MFA browser extension IDs.

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

Detects Windows executables referencing non-Windows User-Agents

Detects executables containing potential Windows Defender anti-emulation checks

Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Downloads MZ/PE file

Checks computer location settings

Reads user/profile data of web browsers

Reads data files stored by FTP clients

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Program crash

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Modifies system certificate store

Suspicious use of WriteProcessMemory

Delays execution with timeout.exe

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-04 01:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-04 01:33

Reported

2024-06-04 01:35

Platform

win7-20240508-en

Max time kernel

118s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe

"C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 52

Network

N/A

Files

memory/2072-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2072-1-0x0000000000020000-0x0000000000021000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-04 01:33

Reported

2024-06-04 01:35

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
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Stealc

stealer stealc

Vidar

stealer vidar

Detect binaries embedding considerable number of MFA browser extension IDs.

Description Indicator Process Target
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Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

Description Indicator Process Target
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Detects Windows executables referencing non-Windows User-Agents

Description Indicator Process Target
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Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

Description Indicator Process Target
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Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

Description Indicator Process Target
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Detects executables containing potential Windows Defender anti-emulation checks

Description Indicator Process Target
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Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\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 4868 set thread context of 2280 N/A C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.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

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2796BAE63F1801E277261BA0D77770028F20EEE4 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2796BAE63F1801E277261BA0D77770028F20EEE4\Blob = 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 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4868 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4868 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4868 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4868 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4868 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4868 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4868 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4868 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4868 wrote to memory of 2280 N/A C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2280 wrote to memory of 844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\cmd.exe
PID 2280 wrote to memory of 844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\cmd.exe
PID 2280 wrote to memory of 844 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\cmd.exe
PID 844 wrote to memory of 3548 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 844 wrote to memory of 3548 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 844 wrote to memory of 3548 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.exe

"C:\Users\Admin\AppData\Local\Temp\7d740bcc6e1ebdf1ec1a25242db7ab2aabbfa568394f0775287e28f69d526877.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\GIJEGDAKEHJE" & 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 97.17.167.52.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
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 245.158.13.49.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
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 43.58.199.20.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
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
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 8.8.8.8:53 149.220.183.52.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 55.36.223.20.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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 131.72.42.20.in-addr.arpa udp

Files

memory/4868-0-0x00000000007F0000-0x00000000007F1000-memory.dmp

memory/4868-3-0x00000000007F0000-0x00000000007F1000-memory.dmp

memory/2280-2-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4868-1-0x00000000007F0000-0x00000000007F1000-memory.dmp

memory/2280-7-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2280-6-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2280-10-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2280-11-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2280-13-0x000000001B450000-0x000000001B6AF000-memory.dmp

memory/2280-28-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2280-29-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2280-45-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2280-46-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2280-57-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2280-58-0x0000000000400000-0x0000000000649000-memory.dmp