Malware Analysis Report

2025-06-16 03:53

Sample ID 241002-kcs6aawfmr
Target 42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe
SHA256 42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20

Threat Level: Known bad

The file 42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.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 08:27

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-02 08:27

Reported

2024-10-02 08:30

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.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\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.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\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.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\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.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\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe

"C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.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 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 37.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 227.66.18.2.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/4440-0-0x0000000000600000-0x0000000000CAE000-memory.dmp

memory/4440-1-0x0000000077A94000-0x0000000077A96000-memory.dmp

memory/4440-2-0x0000000000601000-0x0000000000624000-memory.dmp

memory/4440-3-0x0000000000600000-0x0000000000CAE000-memory.dmp

memory/4440-4-0x0000000000600000-0x0000000000CAE000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-02 08:27

Reported

2024-10-02 08:30

Platform

win7-20240903-en

Max time kernel

71s

Max time network

18s

Command Line

"C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.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\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.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\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.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\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe

"C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe"

Network

Country Destination Domain Proto
RU 185.215.113.37:80 185.215.113.37 tcp

Files

memory/2572-5-0x0000000000C50000-0x00000000012FE000-memory.dmp

memory/2572-3-0x0000000000C50000-0x00000000012FE000-memory.dmp

memory/2572-2-0x0000000000C51000-0x0000000000C74000-memory.dmp

memory/2572-1-0x00000000770E0000-0x00000000770E2000-memory.dmp

memory/2572-0-0x0000000000C50000-0x00000000012FE000-memory.dmp