Malware Analysis Report

2024-10-24 18:41

Sample ID 240920-h3xv2svarc
Target 342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe
SHA256 342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb
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

342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb

Threat Level: Known bad

The file 342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.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 07:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-20 07:16

Reported

2024-09-20 07:18

Platform

win7-20240708-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.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\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.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\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.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\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe

"C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp

Files

memory/2184-0-0x0000000001170000-0x0000000001655000-memory.dmp

memory/2184-1-0x0000000076FA0000-0x0000000076FA2000-memory.dmp

memory/2184-3-0x0000000001170000-0x0000000001655000-memory.dmp

memory/2184-2-0x0000000001171000-0x0000000001185000-memory.dmp

memory/2184-4-0x0000000001170000-0x0000000001655000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-20 07:16

Reported

2024-09-20 07:18

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.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\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.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\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.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\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.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\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe

"C:\Users\Admin\AppData\Local\Temp\342ab05ba386ec749c320ab8dac4f07f9b6f2040cfabf0c5731b6d0cce300ceb.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
RU 185.215.113.103:80 185.215.113.103 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 103.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp

Files

memory/664-0-0x0000000000810000-0x0000000000CF5000-memory.dmp

memory/664-1-0x0000000076EF4000-0x0000000076EF6000-memory.dmp

memory/664-2-0x0000000000811000-0x0000000000825000-memory.dmp

memory/664-3-0x0000000000810000-0x0000000000CF5000-memory.dmp

memory/664-4-0x0000000000810000-0x0000000000CF5000-memory.dmp