Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-jz9k4sad3v
Target ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684
SHA256 ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684
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

ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684

Threat Level: Known bad

The file ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Stealc

Detect Vidar Stealer

Vidar

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 08:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 08:07

Reported

2024-06-08 08:10

Platform

win10v2004-20240426-en

Max time kernel

94s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.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\kat3420.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 2312 set thread context of 2796 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat3420.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\kat3420.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3420.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3420.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2312 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat3420.tmp
PID 2312 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat3420.tmp
PID 2312 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat3420.tmp
PID 2312 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat3420.tmp
PID 2312 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat3420.tmp
PID 2312 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat3420.tmp
PID 2312 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat3420.tmp
PID 2312 wrote to memory of 2796 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat3420.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe

"C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe"

C:\Users\Admin\AppData\Local\Temp\kat3420.tmp

C:\Users\Admin\AppData\Local\Temp\kat3420.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 8.8.8.8.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 24.249.124.192.in-addr.arpa udp
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
US 8.8.8.8:53 68.159.190.20.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
US 8.8.8.8:53 28.118.140.52.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
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.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 11.227.111.52.in-addr.arpa udp

Files

memory/2312-0-0x0000000000840000-0x0000000000841000-memory.dmp

memory/2312-1-0x0000000002A50000-0x0000000002BB3000-memory.dmp

memory/2796-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3420.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2312-6-0x0000000000400000-0x000000000067A000-memory.dmp

memory/2796-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2796-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2796-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2796-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2796-25-0x000000001DC50000-0x000000001DEAF000-memory.dmp

memory/2796-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2796-41-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 08:07

Reported

2024-06-08 08:10

Platform

win11-20240419-en

Max time kernel

90s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.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\kat5062.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 3896 set thread context of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat5062.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\kat5062.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5062.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5062.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3896 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat5062.tmp
PID 3896 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat5062.tmp
PID 3896 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat5062.tmp
PID 3896 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat5062.tmp
PID 3896 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat5062.tmp
PID 3896 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat5062.tmp
PID 3896 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat5062.tmp
PID 3896 wrote to memory of 3032 N/A C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe C:\Users\Admin\AppData\Local\Temp\kat5062.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe

"C:\Users\Admin\AppData\Local\Temp\ac2a9ef29a20a0826f3ca07be052b92c0148b60aac517941ecbc274b8de97684.exe"

C:\Users\Admin\AppData\Local\Temp\kat5062.tmp

C:\Users\Admin\AppData\Local\Temp\kat5062.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
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 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 23.249.124.192.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
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/3896-0-0x0000000000910000-0x0000000000911000-memory.dmp

memory/3896-1-0x0000000003D40000-0x0000000003EA3000-memory.dmp

memory/3032-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5062.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3032-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3032-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3896-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3032-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3032-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3032-27-0x00000000260A0000-0x00000000262FF000-memory.dmp

memory/3032-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3032-43-0x0000000000400000-0x0000000000648000-memory.dmp