Malware Analysis Report

2024-11-16 13:45

Sample ID 240628-lw55mataqe
Target 6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d
SHA256 6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d
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

6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d

Threat Level: Known bad

The file 6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d 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 09:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 09:53

Reported

2024-06-28 09:56

Platform

win10v2004-20240611-en

Max time kernel

133s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.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\kat50EF.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 1012 set thread context of 2600 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat50EF.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\kat50EF.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1012 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp
PID 1012 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp
PID 1012 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp
PID 1012 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp
PID 1012 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp
PID 1012 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp
PID 1012 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp
PID 1012 wrote to memory of 2600 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe

"C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe"

C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp

C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.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 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
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 195.201.251.214 tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 32.251.17.2.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/1012-0-0x00000000021E0000-0x00000000021E1000-memory.dmp

memory/1012-1-0x00000000029B0000-0x0000000002AC0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat50EF.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1012-6-0x0000000000400000-0x000000000058E000-memory.dmp

memory/2600-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2600-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2600-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2600-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2600-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2600-26-0x00000000226C0000-0x000000002291F000-memory.dmp

memory/2600-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2600-34-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 09:53

Reported

2024-06-28 09:56

Platform

win11-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.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\kat65FD.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 1972 set thread context of 3628 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat65FD.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\kat65FD.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat65FD.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1972 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat65FD.tmp
PID 1972 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat65FD.tmp
PID 1972 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat65FD.tmp
PID 1972 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat65FD.tmp
PID 1972 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat65FD.tmp
PID 1972 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat65FD.tmp
PID 1972 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat65FD.tmp
PID 1972 wrote to memory of 3628 N/A C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe C:\Users\Admin\AppData\Local\Temp\kat65FD.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe

"C:\Users\Admin\AppData\Local\Temp\6e135149a96dad26052177cf1fa6165bb9962b87df99aca0394e06b550b98d8d.exe"

C:\Users\Admin\AppData\Local\Temp\kat65FD.tmp

C:\Users\Admin\AppData\Local\Temp\kat65FD.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 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 22.249.124.192.in-addr.arpa udp
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

Files

memory/1972-0-0x0000000002300000-0x0000000002301000-memory.dmp

memory/1972-2-0x0000000003F70000-0x0000000004080000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat65FD.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3628-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1972-10-0x0000000000400000-0x000000000058E000-memory.dmp

memory/3628-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3628-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3628-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3628-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3628-28-0x000000002D160000-0x000000002D3BF000-memory.dmp

memory/3628-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3628-43-0x0000000000400000-0x0000000000648000-memory.dmp