Malware Analysis Report

2024-10-24 18:41

Sample ID 240920-bxc55asdrk
Target 8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe
SHA256 8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9
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

8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9

Threat Level: Known bad

The file 8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.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 01:31

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-20 01:31

Reported

2024-09-20 01:33

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.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\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.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\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.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\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.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\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe

"C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp

Files

memory/2348-0-0x0000000000BB0000-0x0000000001095000-memory.dmp

memory/2348-1-0x0000000077210000-0x0000000077212000-memory.dmp

memory/2348-3-0x0000000000BB0000-0x0000000001095000-memory.dmp

memory/2348-2-0x0000000000BB1000-0x0000000000BC5000-memory.dmp

memory/2348-4-0x0000000000BB0000-0x0000000001095000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-20 01:31

Reported

2024-09-20 01:33

Platform

win10v2004-20240802-en

Max time kernel

95s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.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\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.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\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.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\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe

"C:\Users\Admin\AppData\Local\Temp\8e4e9d304d59f9b976519fbe19054c1b69603ba5923c64375b890c0aca6edff9.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.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 8.8.8.8:53 149.220.183.52.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 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/1624-0-0x00000000009B0000-0x0000000000E95000-memory.dmp

memory/1624-1-0x00000000777C4000-0x00000000777C6000-memory.dmp

memory/1624-2-0x00000000009B1000-0x00000000009C5000-memory.dmp

memory/1624-3-0x00000000009B0000-0x0000000000E95000-memory.dmp

memory/1624-4-0x00000000009B0000-0x0000000000E95000-memory.dmp