Malware Analysis Report

2024-11-16 13:44

Sample ID 240607-j94gvadc4v
Target 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac
SHA256 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac

Threat Level: Known bad

The file 4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac 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

2024-06-07 08:23

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 08:23

Reported

2024-06-07 08:25

Platform

win11-20240426-en

Max time kernel

90s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.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\kat6225.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 2084 set thread context of 2200 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat6225.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\kat6225.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6225.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6225.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2084 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat6225.tmp
PID 2084 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat6225.tmp
PID 2084 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat6225.tmp
PID 2084 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat6225.tmp
PID 2084 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat6225.tmp
PID 2084 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat6225.tmp
PID 2084 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat6225.tmp
PID 2084 wrote to memory of 2200 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat6225.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe

"C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe"

C:\Users\Admin\AppData\Local\Temp\kat6225.tmp

C:\Users\Admin\AppData\Local\Temp\kat6225.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 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
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
IE 52.111.236.21:443 tcp

Files

memory/2084-0-0x00000000023B0000-0x00000000023B1000-memory.dmp

memory/2084-2-0x00000000040D0000-0x0000000004233000-memory.dmp

memory/2200-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2200-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2200-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2084-9-0x0000000000400000-0x000000000067A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6225.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2200-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2200-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2200-27-0x0000000026090000-0x00000000262EF000-memory.dmp

memory/2200-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2200-43-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 08:23

Reported

2024-06-07 08:25

Platform

win10v2004-20240508-en

Max time kernel

134s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.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\kat42B6.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 2328 set thread context of 3416 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat42B6.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\kat42B6.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2328 wrote to memory of 3416 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp
PID 2328 wrote to memory of 3416 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp
PID 2328 wrote to memory of 3416 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp
PID 2328 wrote to memory of 3416 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp
PID 2328 wrote to memory of 3416 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp
PID 2328 wrote to memory of 3416 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp
PID 2328 wrote to memory of 3416 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp
PID 2328 wrote to memory of 3416 N/A C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe

"C:\Users\Admin\AppData\Local\Temp\4295a58ca53b10e4ce1ebb13cfe303653bf9afb4e583d32e3790291bde572eac.exe"

C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp

C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.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 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.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 36.249.124.192.in-addr.arpa udp
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
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
BE 88.221.83.234:443 www.bing.com tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 234.83.221.88.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 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 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 33.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 202.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.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 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/2328-0-0x0000000000830000-0x0000000000831000-memory.dmp

memory/2328-2-0x0000000002A20000-0x0000000002B83000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat42B6.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3416-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3416-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3416-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2328-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3416-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3416-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3416-25-0x000000001B7B0000-0x000000001BA0F000-memory.dmp

memory/3416-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3416-41-0x0000000000400000-0x0000000000648000-memory.dmp