Malware Analysis Report

2024-10-24 18:41

Sample ID 240920-bpnxna1enc
Target 4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe
SHA256 4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf
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

4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf

Threat Level: Known bad

The file 4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.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

2024-09-20 01:19

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-20 01:19

Reported

2024-09-20 01:21

Platform

win7-20240903-en

Max time kernel

117s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.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\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.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\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.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\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe

"C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp

Files

memory/2204-0-0x00000000003F0000-0x00000000008E3000-memory.dmp

memory/2204-1-0x0000000076EA0000-0x0000000076EA2000-memory.dmp

memory/2204-3-0x00000000003F0000-0x00000000008E3000-memory.dmp

memory/2204-2-0x00000000003F1000-0x0000000000405000-memory.dmp

memory/2204-4-0x00000000003F0000-0x00000000008E3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-20 01:19

Reported

2024-09-20 01:21

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.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\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.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\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.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\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe

"C:\Users\Admin\AppData\Local\Temp\4650212917923ff634847349f6af24a549715fe99be9fe7672059fff85f449cf.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 103.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 6.173.189.20.in-addr.arpa udp

Files

memory/4688-0-0x0000000000010000-0x0000000000503000-memory.dmp

memory/4688-1-0x0000000077C94000-0x0000000077C96000-memory.dmp

memory/4688-2-0x0000000000011000-0x0000000000025000-memory.dmp

memory/4688-3-0x0000000000010000-0x0000000000503000-memory.dmp

memory/4688-4-0x0000000000010000-0x0000000000503000-memory.dmp