Malware Analysis Report

2025-06-16 03:53

Sample ID 241002-ksrbma1ejf
Target 8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe
SHA256 8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1
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

8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1

Threat Level: Known bad

The file 8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.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)

Identifies Wine through registry keys

Checks BIOS information in registry

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 08:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-02 08:52

Reported

2024-10-02 08:54

Platform

win7-20240903-en

Max time kernel

121s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.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\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.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\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.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\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.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\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe

"C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe"

Network

Country Destination Domain Proto
RU 185.215.113.37:80 185.215.113.37 tcp

Files

memory/540-0-0x00000000011A0000-0x0000000001855000-memory.dmp

memory/540-1-0x0000000077320000-0x0000000077322000-memory.dmp

memory/540-2-0x00000000011A1000-0x00000000011C4000-memory.dmp

memory/540-3-0x00000000011A0000-0x0000000001855000-memory.dmp

memory/540-4-0x00000000011A0000-0x0000000001855000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-02 08:52

Reported

2024-10-02 08:54

Platform

win10v2004-20240802-en

Max time kernel

97s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.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\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.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\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.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\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe

"C:\Users\Admin\AppData\Local\Temp\8feb29e2e21519c5fe6d92999271bf4419c896d19b4a514f6cac5dfbbd6005d1.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
RU 185.215.113.37:80 185.215.113.37 tcp
US 8.8.8.8:53 37.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/4956-0-0x0000000000950000-0x0000000001005000-memory.dmp

memory/4956-1-0x0000000077E84000-0x0000000077E86000-memory.dmp

memory/4956-2-0x0000000000951000-0x0000000000974000-memory.dmp

memory/4956-3-0x0000000000950000-0x0000000001005000-memory.dmp

memory/4956-4-0x0000000000950000-0x0000000001005000-memory.dmp