Malware Analysis Report

2024-11-30 07:02

Sample ID 240601-h6b3raee72
Target 7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593
SHA256 7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593
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

7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593

Threat Level: Known bad

The file 7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Stealc

Detect Vidar Stealer

Vidar

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 07:20

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 07:20

Reported

2024-06-01 07:23

Platform

win10v2004-20240508-en

Max time kernel

133s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.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\kat6244.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 4864 set thread context of 4740 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat6244.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\kat6244.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6244.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6244.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4864 wrote to memory of 4740 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4864 wrote to memory of 4740 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4864 wrote to memory of 4740 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4864 wrote to memory of 4740 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4864 wrote to memory of 4740 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4864 wrote to memory of 4740 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4864 wrote to memory of 4740 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4864 wrote to memory of 4740 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe

"C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe"

C:\Users\Admin\AppData\Local\Temp\kat6244.tmp

C:\Users\Admin\AppData\Local\Temp\kat6244.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 172.210.232.199.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 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 132.102.69.159.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.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
NL 23.62.61.97:443 www.bing.com 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
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 16.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.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 8.8.8.8:53 88.156.103.20.in-addr.arpa udp

Files

memory/4864-0-0x0000000000820000-0x0000000000821000-memory.dmp

memory/4864-2-0x0000000002B30000-0x0000000002C7C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6244.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4740-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4864-10-0x0000000000400000-0x0000000000663000-memory.dmp

memory/4740-9-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4740-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4740-22-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4740-23-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4740-26-0x000000001B7E0000-0x000000001BA3F000-memory.dmp

memory/4740-40-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4740-41-0x0000000000400000-0x0000000000649000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 07:20

Reported

2024-06-01 07:23

Platform

win11-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.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\kat7157.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 1508 set thread context of 2364 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat7157.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\kat7157.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7157.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7157.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1508 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat7157.tmp
PID 1508 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat7157.tmp
PID 1508 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat7157.tmp
PID 1508 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat7157.tmp
PID 1508 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat7157.tmp
PID 1508 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat7157.tmp
PID 1508 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat7157.tmp
PID 1508 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe C:\Users\Admin\AppData\Local\Temp\kat7157.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe

"C:\Users\Admin\AppData\Local\Temp\7516fa1336bd1370c024ee3410f59bcdb1aad9005f95dee42677585f309eb593.exe"

C:\Users\Admin\AppData\Local\Temp\kat7157.tmp

C:\Users\Admin\AppData\Local\Temp\kat7157.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 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 132.102.69.159.in-addr.arpa udp
US 8.8.8.8:53 16.24.18.2.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/1508-0-0x00000000023C0000-0x00000000023C1000-memory.dmp

memory/1508-1-0x0000000002BD0000-0x0000000002D1C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat7157.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2364-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2364-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2364-9-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1508-10-0x0000000000400000-0x0000000000663000-memory.dmp

memory/2364-15-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2364-16-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2364-18-0x000000001B7F0000-0x000000001BA4F000-memory.dmp

memory/2364-33-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2364-34-0x0000000000400000-0x0000000000649000-memory.dmp