Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-dvj7rsgc3x
Target 3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063
SHA256 3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063
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

3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063

Threat Level: Known bad

The file 3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

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 use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-08 03:19

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 03:19

Reported

2024-06-08 03:22

Platform

win10v2004-20240426-en

Max time kernel

92s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.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\kat3DC4.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 4448 set thread context of 4376 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat3DC4.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\kat3DC4.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4448 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp
PID 4448 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp
PID 4448 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp
PID 4448 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp
PID 4448 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp
PID 4448 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp
PID 4448 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp
PID 4448 wrote to memory of 4376 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe

"C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe"

C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp

C:\Users\Admin\AppData\Local\Temp\kat3DC4.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 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 41.249.124.192.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
US 8.8.8.8:53 71.159.190.20.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 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
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
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/4448-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/4448-2-0x0000000003D30000-0x0000000003E93000-memory.dmp

memory/4376-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3DC4.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4376-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4376-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4448-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4376-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4376-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4376-27-0x0000000028450000-0x00000000286AF000-memory.dmp

memory/4376-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4376-43-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 03:19

Reported

2024-06-08 03:22

Platform

win11-20240426-en

Max time kernel

90s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.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\kat7EE4.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 396 set thread context of 3144 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat7EE4.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\kat7EE4.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 396 wrote to memory of 3144 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp
PID 396 wrote to memory of 3144 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp
PID 396 wrote to memory of 3144 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp
PID 396 wrote to memory of 3144 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp
PID 396 wrote to memory of 3144 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp
PID 396 wrote to memory of 3144 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp
PID 396 wrote to memory of 3144 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp
PID 396 wrote to memory of 3144 N/A C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe

"C:\Users\Admin\AppData\Local\Temp\3bbead075c8303cfd85cb1c1f056ac80f3f373e7d2e1a4c5f34866c803a36063.exe"

C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp

C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp

Network

Country Destination Domain Proto
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 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 23.249.124.192.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
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
NL 52.111.243.30:443 tcp

Files

memory/396-0-0x00000000023E0000-0x00000000023E1000-memory.dmp

memory/396-2-0x0000000004150000-0x00000000042B3000-memory.dmp

memory/3144-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat7EE4.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3144-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/396-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3144-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3144-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3144-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3144-27-0x000000001B890000-0x000000001BAEF000-memory.dmp

memory/3144-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3144-43-0x0000000000400000-0x0000000000648000-memory.dmp