Malware Analysis Report

2024-11-30 06:52

Sample ID 240601-jgzcesec21
Target 6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83
SHA256 6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83
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

6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83

Threat Level: Known bad

The file 6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Stealc

Vidar

Detect Vidar Stealer

Downloads MZ/PE file

Executes dropped EXE

Reads user/profile data of web browsers

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-01 07:39

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 07:39

Reported

2024-06-01 07:41

Platform

win10v2004-20240508-en

Max time kernel

94s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.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

Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 928 set thread context of 4656 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 928 wrote to memory of 4656 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp
PID 928 wrote to memory of 4656 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp
PID 928 wrote to memory of 4656 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp
PID 928 wrote to memory of 4656 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp
PID 928 wrote to memory of 4656 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp
PID 928 wrote to memory of 4656 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp
PID 928 wrote to memory of 4656 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp
PID 928 wrote to memory of 4656 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe

"C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe"

C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp

C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 23.249.124.192.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 132.102.69.159.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
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 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/928-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/928-2-0x0000000004050000-0x000000000419C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4AE4.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4656-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/928-9-0x0000000000400000-0x0000000000663000-memory.dmp

memory/4656-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4656-10-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4656-22-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4656-23-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4656-25-0x000000001B770000-0x000000001B9CF000-memory.dmp

memory/4656-40-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4656-41-0x0000000000400000-0x0000000000649000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 07:39

Reported

2024-06-01 07:41

Platform

win11-20240426-en

Max time kernel

146s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.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

Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat8107.tmp N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3372 set thread context of 4836 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat8107.tmp

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat8107.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat8107.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat8107.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3372 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat8107.tmp
PID 3372 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat8107.tmp
PID 3372 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat8107.tmp
PID 3372 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat8107.tmp
PID 3372 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat8107.tmp
PID 3372 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat8107.tmp
PID 3372 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat8107.tmp
PID 3372 wrote to memory of 4836 N/A C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe C:\Users\Admin\AppData\Local\Temp\kat8107.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe

"C:\Users\Admin\AppData\Local\Temp\6e5b34cf55d69f86e0b6404db41a0542a1c2eb27e3effb07781b056af6e7fe83.exe"

C:\Users\Admin\AppData\Local\Temp\kat8107.tmp

C:\Users\Admin\AppData\Local\Temp\kat8107.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 132.102.69.159.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp

Files

memory/3372-0-0x00000000023C0000-0x00000000023C1000-memory.dmp

memory/3372-1-0x0000000004080000-0x00000000041CC000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat8107.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4836-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4836-10-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4836-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/3372-9-0x0000000000400000-0x0000000000663000-memory.dmp

memory/4836-24-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4836-25-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4836-27-0x000000001B900000-0x000000001BB5F000-memory.dmp

memory/4836-42-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4836-43-0x0000000000400000-0x0000000000649000-memory.dmp