Malware Analysis Report

2024-10-24 18:41

Sample ID 240920-bwdp9ssdln
Target 8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe
SHA256 8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190
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

8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190

Threat Level: Known bad

The file 8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.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

Unsigned PE

System Location Discovery: System Language Discovery

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 01:31

Platform

win7-20240704-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.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\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.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\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.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\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe

"C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp

Files

memory/2880-0-0x00000000000D0000-0x00000000005A9000-memory.dmp

memory/2880-1-0x00000000772F0000-0x00000000772F2000-memory.dmp

memory/2880-2-0x00000000000D1000-0x00000000000E5000-memory.dmp

memory/2880-3-0x00000000000D0000-0x00000000005A9000-memory.dmp

memory/2880-4-0x00000000000D0000-0x00000000005A9000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-20 01:29

Reported

2024-09-20 01:31

Platform

win10v2004-20240802-en

Max time kernel

137s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.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\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.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\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.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\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe

"C:\Users\Admin\AppData\Local\Temp\8183f171e3866f1cc615918d2205010b8475ecb923df47bd5582d7c22aa38190.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4216,i,15336851255456239337,16379811035920490645,262144 --variations-seed-version --mojo-platform-channel-handle=2460 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
RU 185.215.113.103:80 185.215.113.103 tcp
US 8.8.8.8:53 103.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.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

Files

memory/1244-0-0x00000000000B0000-0x0000000000589000-memory.dmp

memory/1244-1-0x0000000077454000-0x0000000077456000-memory.dmp

memory/1244-2-0x00000000000B1000-0x00000000000C5000-memory.dmp

memory/1244-3-0x00000000000B0000-0x0000000000589000-memory.dmp

memory/1244-4-0x00000000000B0000-0x0000000000589000-memory.dmp