Malware Analysis Report

2024-10-24 18:42

Sample ID 240920-jbn99sveke
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 07:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-20 07:29

Reported

2024-09-20 07:32

Platform

win7-20240903-en

Max time kernel

118s

Max time network

118s

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-1-5-21-1846800975-3917212583-2893086201-1000\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/2948-0-0x0000000000A30000-0x0000000000F23000-memory.dmp

memory/2948-1-0x0000000077130000-0x0000000077132000-memory.dmp

memory/2948-3-0x0000000000A30000-0x0000000000F23000-memory.dmp

memory/2948-2-0x0000000000A31000-0x0000000000A45000-memory.dmp

memory/2948-4-0x0000000000A30000-0x0000000000F23000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-20 07:29

Reported

2024-09-20 07:32

Platform

win10v2004-20240802-en

Max time kernel

95s

Max time network

102s

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-1-5-21-656926755-4116854191-210765258-1000\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 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 103.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 52.111.227.14:443 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/404-0-0x0000000000BE0000-0x00000000010D3000-memory.dmp

memory/404-1-0x0000000076EF4000-0x0000000076EF6000-memory.dmp

memory/404-2-0x0000000000BE1000-0x0000000000BF5000-memory.dmp

memory/404-3-0x0000000000BE0000-0x00000000010D3000-memory.dmp

memory/404-4-0x0000000000BE0000-0x00000000010D3000-memory.dmp