Malware Analysis Report

2025-06-16 03:52

Sample ID 241002-keka6awgmk
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

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-02 08:30

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-02 08:30

Reported

2024-10-02 08:33

Platform

win7-20240708-en

Max time kernel

118s

Max time network

119s

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-1-5-21-3551809350-4263495960-1443967649-1000\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/1960-0-0x00000000012E0000-0x000000000197E000-memory.dmp

memory/1960-1-0x0000000077720000-0x0000000077722000-memory.dmp

memory/1960-3-0x00000000012E0000-0x000000000197E000-memory.dmp

memory/1960-2-0x00000000012E1000-0x0000000001304000-memory.dmp

memory/1960-4-0x00000000012E0000-0x000000000197E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-02 08:30

Reported

2024-10-02 08:33

Platform

win10v2004-20240802-en

Max time kernel

95s

Max time network

97s

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-1-5-21-945322488-2060912225-3527527000-1000\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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 37.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/3372-0-0x0000000000B00000-0x000000000119E000-memory.dmp

memory/3372-1-0x0000000077BA4000-0x0000000077BA6000-memory.dmp

memory/3372-2-0x0000000000B01000-0x0000000000B24000-memory.dmp

memory/3372-3-0x0000000000B00000-0x000000000119E000-memory.dmp

memory/3372-5-0x0000000000B00000-0x000000000119E000-memory.dmp