Malware Analysis Report

2024-10-24 18:41

Sample ID 240920-b4csyasdme
Target c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe
SHA256 c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1
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

c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1

Threat Level: Known bad

The file c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.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

Suspicious use of NtSetInformationThreadHideFromDebugger

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-20 01:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-20 01:41

Reported

2024-09-20 01:44

Platform

win7-20240729-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.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\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.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\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.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\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe

"C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp

Files

memory/1664-0-0x0000000000BD0000-0x00000000010B5000-memory.dmp

memory/1664-1-0x0000000077E30000-0x0000000077E32000-memory.dmp

memory/1664-2-0x0000000000BD1000-0x0000000000BE5000-memory.dmp

memory/1664-3-0x0000000000BD0000-0x00000000010B5000-memory.dmp

memory/1664-4-0x0000000000BD0000-0x00000000010B5000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-20 01:41

Reported

2024-09-20 01:44

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

98s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.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\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.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\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.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\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe

"C:\Users\Admin\AppData\Local\Temp\c2e1a7c1a3a7c2916ea2694bb0aa0f23158698e77498ff16604fd0023205f2f1.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
RU 185.215.113.103:80 185.215.113.103 tcp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 103.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/5016-0-0x0000000000CA0000-0x0000000001185000-memory.dmp

memory/5016-1-0x0000000077C54000-0x0000000077C56000-memory.dmp

memory/5016-2-0x0000000000CA1000-0x0000000000CB5000-memory.dmp

memory/5016-3-0x0000000000CA0000-0x0000000001185000-memory.dmp

memory/5016-4-0x0000000000CA0000-0x0000000001185000-memory.dmp