Malware Analysis Report

2024-11-13 13:29

Sample ID 240604-bdx17agd85
Target 682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7
SHA256 682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7
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

682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7

Threat Level: Known bad

The file 682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7 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

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-04 01:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-04 01:02

Reported

2024-06-04 01:04

Platform

win10v2004-20240426-en

Max time kernel

93s

Max time network

103s

Command Line

"C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.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\kat5AC2.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 888 set thread context of 1152 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat5AC2.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\kat5AC2.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 888 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp
PID 888 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp
PID 888 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp
PID 888 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp
PID 888 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp
PID 888 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp
PID 888 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp
PID 888 wrote to memory of 1152 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe

"C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe"

C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp

C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 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
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 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 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 52.111.227.11:443 tcp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp

Files

memory/888-0-0x0000000002330000-0x0000000002331000-memory.dmp

memory/888-2-0x00000000029B0000-0x0000000002AFC000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5AC2.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1152-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1152-9-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1152-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/888-10-0x0000000000400000-0x00000000005CE000-memory.dmp

memory/1152-13-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1152-14-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1152-16-0x000000001B850000-0x000000001BAAF000-memory.dmp

memory/1152-31-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1152-32-0x0000000000400000-0x0000000000649000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-04 01:02

Reported

2024-06-04 01:04

Platform

win11-20240426-en

Max time kernel

90s

Max time network

132s

Command Line

"C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.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\kat64F4.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 4212 set thread context of 1500 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat64F4.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\kat64F4.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4212 wrote to memory of 1500 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp
PID 4212 wrote to memory of 1500 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp
PID 4212 wrote to memory of 1500 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp
PID 4212 wrote to memory of 1500 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp
PID 4212 wrote to memory of 1500 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp
PID 4212 wrote to memory of 1500 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp
PID 4212 wrote to memory of 1500 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp
PID 4212 wrote to memory of 1500 N/A C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe

"C:\Users\Admin\AppData\Local\Temp\682b75a2a9dc54d8976202c026e525bf822891eb6a3cd99ba960ce8221b965c7.exe"

C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp

C:\Users\Admin\AppData\Local\Temp\kat64F4.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 49.13.158.245:5432 49.13.158.245 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.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
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 tcp

Files

memory/4212-0-0x0000000002320000-0x0000000002321000-memory.dmp

memory/4212-1-0x0000000004010000-0x000000000415C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat64F4.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1500-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1500-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1500-9-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4212-10-0x0000000000400000-0x00000000005CE000-memory.dmp

memory/1500-24-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1500-25-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1500-28-0x000000001B8A0000-0x000000001BAFF000-memory.dmp

memory/1500-42-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1500-43-0x0000000000400000-0x0000000000649000-memory.dmp