Malware Analysis Report

2025-01-22 22:52

Sample ID 240908-egb5nswglh
Target ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe
SHA256 ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894
Tags
stealc rave discovery evasion 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

ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894

Threat Level: Known bad

The file ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe was found to be: Known bad.

Malicious Activity Summary

stealc rave discovery evasion stealer

Stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Identifies Wine through registry keys

Checks BIOS information in registry

Checks installed software on the system

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-08 03:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-08 03:54

Reported

2024-09-08 03:56

Platform

win7-20240704-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe"

Signatures

Stealc

stealer stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe

"C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 tcp
RU 185.215.113.103:80 185.215.113.103 tcp

Files

memory/2520-0-0x0000000000D70000-0x000000000140E000-memory.dmp

memory/2520-1-0x0000000077D80000-0x0000000077D82000-memory.dmp

memory/2520-2-0x0000000000D71000-0x0000000000D85000-memory.dmp

memory/2520-3-0x0000000000D70000-0x000000000140E000-memory.dmp

memory/2520-4-0x0000000000D70000-0x000000000140E000-memory.dmp

memory/2520-5-0x0000000000D70000-0x000000000140E000-memory.dmp

memory/2520-6-0x0000000000D70000-0x000000000140E000-memory.dmp

memory/2520-7-0x0000000000D70000-0x000000000140E000-memory.dmp

memory/2520-9-0x0000000000D70000-0x000000000140E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-08 03:54

Reported

2024-09-08 03:56

Platform

win10v2004-20240802-en

Max time kernel

120s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe"

Signatures

Stealc

stealer stealc

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

Checks installed software on the system

discovery

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe

"C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4864 -ip 4864

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4864 -s 1492

Network

Country Destination Domain Proto
RU 185.215.113.103:80 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 59.170.16.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/4864-0-0x0000000000D40000-0x00000000013DE000-memory.dmp

memory/4864-1-0x0000000077654000-0x0000000077656000-memory.dmp

memory/4864-2-0x0000000000D41000-0x0000000000D55000-memory.dmp

memory/4864-3-0x0000000000D40000-0x00000000013DE000-memory.dmp

memory/4864-4-0x0000000000D40000-0x00000000013DE000-memory.dmp

memory/4864-5-0x0000000000D40000-0x00000000013DE000-memory.dmp

memory/4864-6-0x0000000000D40000-0x00000000013DE000-memory.dmp

memory/4864-7-0x0000000000D40000-0x00000000013DE000-memory.dmp

memory/4864-8-0x0000000000D40000-0x00000000013DE000-memory.dmp