Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-l16a7aag7s
Target 4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09
SHA256 4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09
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

4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09

Threat Level: Known bad

The file 4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Stealc

Detect Vidar Stealer

Downloads MZ/PE file

Reads user/profile data of web browsers

Executes dropped EXE

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

2024-06-08 10:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 10:00

Reported

2024-06-08 10:03

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.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\kat4AD4.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 4932 set thread context of 4676 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat4AD4.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\kat4AD4.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4932 wrote to memory of 4676 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp
PID 4932 wrote to memory of 4676 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp
PID 4932 wrote to memory of 4676 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp
PID 4932 wrote to memory of 4676 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp
PID 4932 wrote to memory of 4676 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp
PID 4932 wrote to memory of 4676 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp
PID 4932 wrote to memory of 4676 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp
PID 4932 wrote to memory of 4676 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe

"C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe"

C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp

C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.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 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
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 116.202.190.18:5432 116.202.190.18 tcp
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
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.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
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 105.193.132.51.in-addr.arpa udp

Files

memory/4932-0-0x00000000022F0000-0x00000000022F1000-memory.dmp

memory/4932-2-0x0000000004070000-0x00000000041D3000-memory.dmp

memory/4676-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4932-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4676-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4676-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4AD4.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4676-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4676-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4676-25-0x000000001B800000-0x000000001BA5F000-memory.dmp

memory/4676-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4676-41-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 10:00

Reported

2024-06-08 10:03

Platform

win11-20240508-en

Max time kernel

90s

Max time network

93s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.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\kat43CF.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 2008 set thread context of 2340 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.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\kat43CF.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2008 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 2008 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 2008 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 2008 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 2008 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 2008 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 2008 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 2008 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe

"C:\Users\Admin\AppData\Local\Temp\4a6c232183883708733e05f3447408f5e9f2af4e4eda11e5f98dc015794a1d09.exe"

C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp

C:\Users\Admin\AppData\Local\Temp\kat43CF.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 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 18.190.202.116.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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/2008-0-0x0000000002510000-0x0000000002511000-memory.dmp

memory/2008-2-0x0000000004220000-0x0000000004383000-memory.dmp

memory/2340-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2340-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2008-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/2340-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2340-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2340-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2340-19-0x000000001B7D0000-0x000000001BA2F000-memory.dmp

memory/2340-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2340-34-0x0000000000400000-0x0000000000648000-memory.dmp