Malware Analysis Report

2024-11-16 13:50

Sample ID 240628-bwmceatdpa
Target 7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe
SHA256 7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553
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

7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553

Threat Level: Known bad

The file 7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Stealc

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

Program crash

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 01:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 01:29

Reported

2024-06-28 01:32

Platform

win7-20240611-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe

"C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 108

Network

N/A

Files

memory/2092-0-0x00000000000E0000-0x00000000000E1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 01:29

Reported

2024-06-28 01:32

Platform

win10v2004-20240508-en

Max time kernel

91s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe"

Signatures

Detect Vidar Stealer

stealer
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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\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 940 set thread context of 4360 N/A C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 940 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 940 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 940 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 940 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 940 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 940 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 940 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 940 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 940 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe

"C:\Users\Admin\AppData\Local\Temp\7a95ae3b370d318bff008a07fddf1b6deb1beb78fa9e021c5c9f106d1149b553.exe"

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

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 940 -ip 940

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 940 -s 276

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 214.251.201.195.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
FR 5.42.67.8:80 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp

Files

memory/940-0-0x00000000006B0000-0x00000000006B1000-memory.dmp

memory/4360-1-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4360-3-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4360-5-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4360-17-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4360-18-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4360-20-0x00000000202E0000-0x000000002053F000-memory.dmp

memory/4360-35-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4360-36-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4360-52-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4360-53-0x0000000000400000-0x0000000000648000-memory.dmp