Malware Analysis Report

2024-11-16 13:46

Sample ID 240628-qpyt7a1hrh
Target ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921
SHA256 ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921
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

ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921

Threat Level: Known bad

The file ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921 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

2024-06-28 13:26

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 13:26

Reported

2024-06-28 13:29

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat396F.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 3464 set thread context of 2652 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat396F.tmp

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat396F.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat396F.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3464 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat396F.tmp
PID 3464 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat396F.tmp
PID 3464 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat396F.tmp
PID 3464 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat396F.tmp
PID 3464 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat396F.tmp
PID 3464 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat396F.tmp
PID 3464 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat396F.tmp
PID 3464 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat396F.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe

"C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe"

C:\Users\Admin\AppData\Local\Temp\kat396F.tmp

C:\Users\Admin\AppData\Local\Temp\kat396F.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 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
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 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
US 8.8.8.8:53 183.142.211.20.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
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/3464-0-0x0000000002380000-0x0000000002381000-memory.dmp

memory/3464-2-0x00000000029E0000-0x0000000002AF0000-memory.dmp

memory/2652-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2652-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat396F.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3464-9-0x0000000000400000-0x0000000000635000-memory.dmp

memory/2652-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2652-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2652-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2652-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2652-26-0x00000000201C0000-0x000000002041F000-memory.dmp

memory/2652-34-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2652-35-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 13:26

Reported

2024-06-28 13:29

Platform

win11-20240508-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7C35.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 888 set thread context of 5032 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 888 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp
PID 888 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp
PID 888 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp
PID 888 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp
PID 888 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp
PID 888 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp
PID 888 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp
PID 888 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe

"C:\Users\Admin\AppData\Local\Temp\ac729922425fa88fca620b03a5599bdde53b2b33ce0bcf69797e13089bc07921.exe"

C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp

C:\Users\Admin\AppData\Local\Temp\kat7C35.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
US 8.8.8.8:53 82.90.14.23.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 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp

Files

memory/888-0-0x0000000002390000-0x0000000002391000-memory.dmp

memory/888-1-0x0000000004080000-0x0000000004190000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat7C35.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/5032-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/888-9-0x0000000000400000-0x0000000000635000-memory.dmp

memory/5032-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5032-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5032-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5032-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5032-26-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5032-28-0x0000000029740000-0x000000002999F000-memory.dmp

memory/5032-43-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5032-44-0x0000000000400000-0x0000000000648000-memory.dmp