Malware Analysis Report

2025-06-16 03:52

Sample ID 241003-b43dlaxhqk
Target 859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe
SHA256 859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38
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

859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38

Threat Level: Known bad

The file 859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.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

2024-10-03 01:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-03 01:42

Reported

2024-10-03 01:45

Platform

win7-20240903-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.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\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.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\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.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\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe

"C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe"

Network

Country Destination Domain Proto
RU 185.215.113.37:80 185.215.113.37 tcp

Files

memory/2640-0-0x0000000000E90000-0x0000000001538000-memory.dmp

memory/2640-1-0x0000000077470000-0x0000000077472000-memory.dmp

memory/2640-2-0x0000000000E91000-0x0000000000EB4000-memory.dmp

memory/2640-3-0x0000000000E90000-0x0000000001538000-memory.dmp

memory/2640-5-0x0000000000E90000-0x0000000001538000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-03 01:42

Reported

2024-10-03 01:45

Platform

win10v2004-20240802-en

Max time kernel

96s

Max time network

98s

Command Line

"C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.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\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.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\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.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\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe

"C:\Users\Admin\AppData\Local\Temp\859a8396da0d39d5a69a884b8612c567024fb274fa9d34cde309122689136c38.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
RU 185.215.113.37:80 185.215.113.37 tcp
US 8.8.8.8:53 149.220.183.52.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 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/3960-0-0x0000000000A90000-0x0000000001138000-memory.dmp

memory/3960-1-0x00000000772F4000-0x00000000772F6000-memory.dmp

memory/3960-2-0x0000000000A91000-0x0000000000AB4000-memory.dmp

memory/3960-3-0x0000000000A90000-0x0000000001138000-memory.dmp

memory/3960-4-0x0000000000A90000-0x0000000001138000-memory.dmp