Malware Analysis Report

2024-10-24 18:41

Sample ID 240920-bnb7ga1hmq
Target 3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe
SHA256 3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd
Tags
stealc rave 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

3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd

Threat Level: Known bad

The file 3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe was found to be: Known bad.

Malicious Activity Summary

stealc rave 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

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-20 01:17

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-20 01:17

Reported

2024-09-20 01:19

Platform

win7-20240903-en

Max time kernel

121s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.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\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.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\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.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\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.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\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe

"C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp

Files

memory/1712-0-0x0000000001160000-0x0000000001653000-memory.dmp

memory/1712-1-0x00000000777F0000-0x00000000777F2000-memory.dmp

memory/1712-2-0x0000000001161000-0x0000000001175000-memory.dmp

memory/1712-3-0x0000000001160000-0x0000000001653000-memory.dmp

memory/1712-4-0x0000000001160000-0x0000000001653000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-20 01:17

Reported

2024-09-20 01:17

Platform

win10v2004-20240802-en

Max time kernel

31s

Max time network

43s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.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\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.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\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.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\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe

"C:\Users\Admin\AppData\Local\Temp\3810d6bda75751b33fa11b875121b37fdd2623f1d6b65eee403047143dbae8bd.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
RU 185.215.113.103:80 185.215.113.103 tcp
US 8.8.8.8:53 103.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp

Files

memory/4488-0-0x00000000008C0000-0x0000000000DB3000-memory.dmp

memory/4488-1-0x0000000077D24000-0x0000000077D26000-memory.dmp

memory/4488-2-0x00000000008C1000-0x00000000008D5000-memory.dmp

memory/4488-3-0x00000000008C0000-0x0000000000DB3000-memory.dmp

memory/4488-4-0x00000000008C0000-0x0000000000DB3000-memory.dmp