Malware Analysis Report

2024-10-24 18:41

Sample ID 240920-bwf6dssdmj
Target 8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe
SHA256 8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce
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

8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce

Threat Level: Known bad

The file 8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.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 01:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-20 01:29

Reported

2024-09-20 01:32

Platform

win7-20240708-en

Max time kernel

119s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.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\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.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\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.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\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.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\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe

"C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp

Files

memory/1988-0-0x0000000000D90000-0x0000000001271000-memory.dmp

memory/1988-1-0x0000000076FE0000-0x0000000076FE2000-memory.dmp

memory/1988-2-0x0000000000D91000-0x0000000000DA5000-memory.dmp

memory/1988-3-0x0000000000D90000-0x0000000001271000-memory.dmp

memory/1988-5-0x0000000000D90000-0x0000000001271000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-20 01:29

Reported

2024-09-20 01:32

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.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\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.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\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.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\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe

"C:\Users\Admin\AppData\Local\Temp\8416ee9fd5aaab8a1c2733f0122e095399f765f0c2a697fe8d9a5b4fff936bce.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 103.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/1452-0-0x0000000000020000-0x0000000000501000-memory.dmp

memory/1452-1-0x0000000077E54000-0x0000000077E56000-memory.dmp

memory/1452-2-0x0000000000021000-0x0000000000035000-memory.dmp

memory/1452-3-0x0000000000020000-0x0000000000501000-memory.dmp

memory/1452-5-0x0000000000020000-0x0000000000501000-memory.dmp