Malware Analysis Report

2024-11-16 13:43

Sample ID 240607-pn9dvsha38
Target 5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8
SHA256 5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8
Tags
stealc vidar stealer discovery spyware
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

5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8

Threat Level: Known bad

The file 5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8 was found to be: Known bad.

Malicious Activity Summary

stealc vidar stealer discovery spyware

Vidar

Stealc

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

2024-06-07 12:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 12:29

Reported

2024-06-07 12:42

Platform

win10v2004-20240426-en

Max time kernel

3s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 860 set thread context of 4468 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 860 wrote to memory of 4468 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp
PID 860 wrote to memory of 4468 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp
PID 860 wrote to memory of 4468 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp
PID 860 wrote to memory of 4468 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp
PID 860 wrote to memory of 4468 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp
PID 860 wrote to memory of 4468 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp
PID 860 wrote to memory of 4468 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp
PID 860 wrote to memory of 4468 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe

"C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe"

C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp

C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp

Files

memory/860-0-0x0000000000730000-0x0000000000731000-memory.dmp

memory/860-1-0x0000000002AE0000-0x0000000002C43000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat42E5.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4468-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/860-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4468-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4468-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4468-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4468-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4468-16-0x000000001B770000-0x000000001B9CF000-memory.dmp

memory/4468-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4468-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 12:29

Reported

2024-06-07 12:42

Platform

win11-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.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\kat73B9.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 4500 set thread context of 4072 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat73B9.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\kat73B9.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4500 wrote to memory of 4072 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp
PID 4500 wrote to memory of 4072 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp
PID 4500 wrote to memory of 4072 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp
PID 4500 wrote to memory of 4072 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp
PID 4500 wrote to memory of 4072 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp
PID 4500 wrote to memory of 4072 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp
PID 4500 wrote to memory of 4072 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp
PID 4500 wrote to memory of 4072 N/A C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe

"C:\Users\Admin\AppData\Local\Temp\5242240b621c48673edacfacfbcceb6f9453d7cd043fc0f0667106f50f7459c8.exe"

C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp

C:\Users\Admin\AppData\Local\Temp\kat73B9.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 99.167.154.149.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp

Files

memory/4500-0-0x00000000008E0000-0x00000000008E1000-memory.dmp

memory/4500-1-0x0000000002B20000-0x0000000002C83000-memory.dmp

memory/4072-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat73B9.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4072-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4500-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4072-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4072-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4072-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4072-27-0x000000001B840000-0x000000001BA9F000-memory.dmp

memory/4072-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4072-43-0x0000000000400000-0x0000000000648000-memory.dmp