Malware Analysis Report

2025-06-16 03:53

Sample ID 241002-bm3b9szdjr
Target 538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe
SHA256 538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd
Tags
stealc doma 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

538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd

Threat Level: Known bad

The file 538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe was found to be: Known bad.

Malicious Activity Summary

stealc doma 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

2024-10-02 01:16

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-02 01:16

Reported

2024-10-02 01:19

Platform

win7-20240903-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.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\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.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\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.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\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe

"C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe"

Network

Country Destination Domain Proto
RU 185.215.113.37:80 185.215.113.37 tcp

Files

memory/1352-0-0x0000000000F10000-0x00000000015AE000-memory.dmp

memory/1352-1-0x0000000077930000-0x0000000077932000-memory.dmp

memory/1352-2-0x0000000000F11000-0x0000000000F34000-memory.dmp

memory/1352-3-0x0000000000F10000-0x00000000015AE000-memory.dmp

memory/1352-4-0x0000000000F10000-0x00000000015AE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-02 01:16

Reported

2024-10-02 01:19

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.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\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.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\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.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\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe

"C:\Users\Admin\AppData\Local\Temp\538f1b2469163b43d505e8d7f15b9618fc25834aa3b2ebe3f452b120120250cd.exe"

Network

Country Destination Domain Proto
RU 185.215.113.37:80 185.215.113.37 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 37.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp

Files

memory/2128-0-0x0000000000670000-0x0000000000D0E000-memory.dmp

memory/2128-1-0x0000000077BE4000-0x0000000077BE6000-memory.dmp

memory/2128-2-0x0000000000671000-0x0000000000694000-memory.dmp

memory/2128-3-0x0000000000670000-0x0000000000D0E000-memory.dmp

memory/2128-4-0x0000000000670000-0x0000000000D0E000-memory.dmp