Malware Analysis Report

2025-06-16 03:53

Sample ID 241002-blevkszclk
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: 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

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)

Identifies Wine through registry keys

Checks BIOS information in registry

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 01:13

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-02 01:13

Reported

2024-10-02 01:16

Platform

win7-20240708-en

Max time kernel

120s

Max time network

124s

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\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\42db72d6b807b26c29714f59e923ec09468e21d863005949bcba35ca7c970b20.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 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-1-5-21-1506706701-1246725540-2219210854-1000\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/2528-0-0x0000000001100000-0x00000000017AE000-memory.dmp

memory/2528-1-0x0000000077360000-0x0000000077362000-memory.dmp

memory/2528-2-0x0000000001101000-0x0000000001124000-memory.dmp

memory/2528-3-0x0000000001100000-0x00000000017AE000-memory.dmp

memory/2528-4-0x0000000001100000-0x00000000017AE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-02 01:13

Reported

2024-10-02 01:16

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

123s

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-1-5-21-656926755-4116854191-210765258-1000\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
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 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp

Files

memory/1444-0-0x0000000000390000-0x0000000000A3E000-memory.dmp

memory/1444-1-0x00000000779F4000-0x00000000779F6000-memory.dmp

memory/1444-2-0x0000000000391000-0x00000000003B4000-memory.dmp

memory/1444-3-0x0000000000390000-0x0000000000A3E000-memory.dmp

memory/1444-4-0x0000000000390000-0x0000000000A3E000-memory.dmp