Malware Analysis Report

2024-11-13 13:30

Sample ID 240604-bq1b3sha43
Target 489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76
SHA256 489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76
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

489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76

Threat Level: Known bad

The file 489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Vidar

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

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-04 01:21

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-04 01:21

Reported

2024-06-04 01:24

Platform

win11-20240508-en

Max time kernel

106s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.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\kat6D21.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 4804 set thread context of 4448 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat6D21.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\kat6D21.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4804 wrote to memory of 4448 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp
PID 4804 wrote to memory of 4448 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp
PID 4804 wrote to memory of 4448 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp
PID 4804 wrote to memory of 4448 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp
PID 4804 wrote to memory of 4448 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp
PID 4804 wrote to memory of 4448 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp
PID 4804 wrote to memory of 4448 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp
PID 4804 wrote to memory of 4448 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe

"C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe"

C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp

C:\Users\Admin\AppData\Local\Temp\kat6D21.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
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 8.8.8.8:53 245.158.13.49.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
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/4804-0-0x0000000002460000-0x0000000002461000-memory.dmp

memory/4804-2-0x0000000002D10000-0x0000000002E5C000-memory.dmp

memory/4448-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4448-8-0x0000000000400000-0x0000000000649000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6D21.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4448-9-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4804-10-0x0000000000400000-0x00000000005CE000-memory.dmp

memory/4448-11-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4448-12-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4448-14-0x0000000021730000-0x000000002198F000-memory.dmp

memory/4448-29-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4448-30-0x0000000000400000-0x0000000000649000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-04 01:21

Reported

2024-06-04 01:24

Platform

win10v2004-20240426-en

Max time kernel

92s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.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\kat473A.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 2424 set thread context of 2244 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat473A.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\kat473A.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat473A.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat473A.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2424 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat473A.tmp
PID 2424 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat473A.tmp
PID 2424 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat473A.tmp
PID 2424 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat473A.tmp
PID 2424 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat473A.tmp
PID 2424 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat473A.tmp
PID 2424 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat473A.tmp
PID 2424 wrote to memory of 2244 N/A C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe C:\Users\Admin\AppData\Local\Temp\kat473A.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe

"C:\Users\Admin\AppData\Local\Temp\489d3b03f32d85a86e00cb7b5b58868900fc36fe65dd5d2dc0fbd9b34b146d76.exe"

C:\Users\Admin\AppData\Local\Temp\kat473A.tmp

C:\Users\Admin\AppData\Local\Temp\kat473A.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 99.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
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 99.167.154.149.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
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/2424-0-0x0000000000880000-0x0000000000881000-memory.dmp

memory/2424-2-0x0000000002AE0000-0x0000000002C2C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat473A.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2244-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2244-10-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2244-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2424-9-0x0000000000400000-0x00000000005CE000-memory.dmp

memory/2244-13-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2244-14-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2244-16-0x000000001B720000-0x000000001B97F000-memory.dmp

memory/2244-31-0x0000000000400000-0x0000000000649000-memory.dmp

memory/2244-32-0x0000000000400000-0x0000000000649000-memory.dmp