Malware Analysis Report

2024-11-30 07:06

Sample ID 240601-hpxywsdc6t
Target 3a6f7c07d5fc5aa914c12b29e69d2598f5cd5923db2615394149e085c6257c58
SHA256 3a6f7c07d5fc5aa914c12b29e69d2598f5cd5923db2615394149e085c6257c58
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

3a6f7c07d5fc5aa914c12b29e69d2598f5cd5923db2615394149e085c6257c58

Threat Level: Known bad

The file 3a6f7c07d5fc5aa914c12b29e69d2598f5cd5923db2615394149e085c6257c58 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

Vidar

Downloads MZ/PE file

Checks computer location settings

Reads user/profile data of web browsers

Reads data files stored by FTP clients

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Enumerates physical storage devices

Checks processor information in registry

Suspicious use of WriteProcessMemory

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-01 06:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 06:55

Reported

2024-06-01 06:57

Platform

win7-20240220-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe

"C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3036 -s 72

Network

N/A

Files

memory/3036-0-0x0000000000020000-0x0000000000021000-memory.dmp

memory/3036-1-0x0000000000020000-0x0000000000021000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 06:55

Reported

2024-06-01 06:57

Platform

win10v2004-20240426-en

Max time kernel

95s

Max time network

96s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.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
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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4884 set thread context of 4876 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4884 wrote to memory of 1232 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4884 wrote to memory of 1232 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4884 wrote to memory of 1232 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4884 wrote to memory of 4876 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4884 wrote to memory of 4876 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4884 wrote to memory of 4876 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4884 wrote to memory of 4876 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4884 wrote to memory of 4876 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4884 wrote to memory of 4876 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4884 wrote to memory of 4876 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4884 wrote to memory of 4876 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4884 wrote to memory of 4876 N/A C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 4876 wrote to memory of 4548 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\cmd.exe
PID 4876 wrote to memory of 4548 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\cmd.exe
PID 4876 wrote to memory of 4548 N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe C:\Windows\SysWOW64\cmd.exe
PID 4548 wrote to memory of 3664 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4548 wrote to memory of 3664 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4548 wrote to memory of 3664 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe

"C:\Users\Admin\AppData\Local\Temp\0260ea7f3ee2a5b7cc6d2b648d7850ec0f96b70674ab0f9386aa6d07f59d1274.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\AKFHDBFIDAEC" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

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 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
US 8.8.8.8:53 16.24.18.2.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 132.102.69.159.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 tcp
DE 159.69.102.132:5432 tcp
DE 159.69.102.132:5432 tcp
DE 159.69.102.132:5432 tcp
DE 159.69.102.132:5432 tcp
DE 159.69.102.132:5432 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/4884-0-0x0000000000810000-0x0000000000811000-memory.dmp

memory/4884-2-0x0000000000810000-0x0000000000811000-memory.dmp

memory/4876-1-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4876-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4876-6-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4876-9-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4876-10-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4876-12-0x000000001B290000-0x000000001B4EF000-memory.dmp

memory/4876-27-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4876-28-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4876-44-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4876-45-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4876-56-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4876-57-0x0000000000400000-0x0000000000649000-memory.dmp