Malware Analysis Report

2025-01-22 22:53

Sample ID 240908-g7k7da1erq
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)

Checks BIOS information in registry

Identifies Wine through registry keys

Suspicious use of NtSetInformationThreadHideFromDebugger

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-08 06:26

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-08 06:26

Reported

2024-09-08 06:29

Platform

win7-20240903-en

Max time kernel

120s

Max time network

121s

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\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\ace2552b3703c501864780a7be926a0b257dde57dfa386d7fb04fc619a21b894.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 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-1-5-21-1488793075-819845221-1497111674-1000\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 185.215.113.103:80 185.215.113.103 tcp

Files

memory/1128-0-0x0000000000950000-0x0000000000FEE000-memory.dmp

memory/1128-1-0x0000000077590000-0x0000000077592000-memory.dmp

memory/1128-3-0x0000000000950000-0x0000000000FEE000-memory.dmp

memory/1128-2-0x0000000000951000-0x0000000000965000-memory.dmp

memory/1128-4-0x0000000000950000-0x0000000000FEE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-08 06:26

Reported

2024-09-08 06:29

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

151s

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

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

Processes

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

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

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 103.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 121.170.16.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

memory/3968-0-0x0000000000B50000-0x00000000011EE000-memory.dmp

memory/3968-1-0x0000000077084000-0x0000000077086000-memory.dmp

memory/3968-2-0x0000000000B51000-0x0000000000B65000-memory.dmp

memory/3968-3-0x0000000000B50000-0x00000000011EE000-memory.dmp

memory/3968-4-0x0000000000B50000-0x00000000011EE000-memory.dmp