Malware Analysis Report

2024-11-13 13:29

Sample ID 240604-bjkcaagf88
Target 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924
SHA256 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924
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

4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924

Threat Level: Known bad

The file 4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Detect Vidar Stealer

Stealc

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

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-04 01:10

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-04 01:10

Reported

2024-06-04 01:12

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.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\kat6DAE.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 1672 set thread context of 1772 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat6DAE.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\kat6DAE.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1672 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp
PID 1672 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp
PID 1672 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp
PID 1672 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp
PID 1672 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp
PID 1672 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp
PID 1672 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp
PID 1672 wrote to memory of 1772 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe

"C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe"

C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp

C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 129.61.62.23.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 22.249.124.192.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 245.158.13.49.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.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 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 11.173.189.20.in-addr.arpa udp

Files

memory/1672-0-0x0000000000880000-0x0000000000881000-memory.dmp

memory/1672-1-0x0000000002AE0000-0x0000000002C2C000-memory.dmp

memory/1772-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1772-10-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1772-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1672-9-0x0000000000400000-0x00000000005CE000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6DAE.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1772-22-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1772-23-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1772-25-0x000000001DC80000-0x000000001DEDF000-memory.dmp

memory/1772-40-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1772-41-0x0000000000400000-0x0000000000649000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-04 01:10

Reported

2024-06-04 01:12

Platform

win11-20240508-en

Max time kernel

106s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.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\kat7AAE.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 224 set thread context of 2368 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat7AAE.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\kat7AAE.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 224 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp
PID 224 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp
PID 224 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp
PID 224 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp
PID 224 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp
PID 224 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp
PID 224 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp
PID 224 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe

"C:\Users\Admin\AppData\Local\Temp\4e794ecfc88426bc86ab5666d76a0c2db2bfe44ba2978752739072f1c2156924.exe"

C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp

C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp

Network

Country Destination Domain Proto
NL 149.154.167.99:443 t.me tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 22.249.124.192.in-addr.arpa udp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
DE 49.13.158.245:5432 49.13.158.245 tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp

Files

memory/224-0-0x0000000002460000-0x0000000002461000-memory.dmp

memory/224-2-0x0000000002B90000-0x0000000002CDC000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat7AAE.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2368-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2368-10-0x0000000000400000-0x0000000000649000-memory.dmp

memory/224-9-0x0000000000400000-0x00000000005CE000-memory.dmp

memory/2368-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2368-20-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2368-21-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2368-24-0x0000000019400000-0x000000001965F000-memory.dmp

memory/2368-38-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2368-39-0x0000000000400000-0x0000000000649000-memory.dmp