Malware Analysis Report

2024-10-24 18:41

Sample ID 240920-bkp9xs1cme
Target 2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe
SHA256 2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304
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

2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304

Threat Level: Known bad

The file 2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.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

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-20 01:12

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-20 01:12

Reported

2024-09-20 01:15

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.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\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.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\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.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\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe

"C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp

Files

memory/2228-0-0x0000000000280000-0x0000000000750000-memory.dmp

memory/2228-1-0x00000000777C0000-0x00000000777C2000-memory.dmp

memory/2228-3-0x0000000000280000-0x0000000000750000-memory.dmp

memory/2228-2-0x0000000000281000-0x0000000000295000-memory.dmp

memory/2228-4-0x0000000000280000-0x0000000000750000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-20 01:12

Reported

2024-09-20 01:15

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

108s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.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\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.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\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe N/A

Identifies Wine through registry keys

evasion
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Software\Wine C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.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\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe

"C:\Users\Admin\AppData\Local\Temp\2603c54e77988004446d41f64a45cf88f0917739e23439a0fdf879784acd6304.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
RU 185.215.113.103:80 185.215.113.103 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 103.113.215.185.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 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/4300-0-0x0000000000E30000-0x0000000001300000-memory.dmp

memory/4300-1-0x0000000077954000-0x0000000077956000-memory.dmp

memory/4300-2-0x0000000000E31000-0x0000000000E45000-memory.dmp

memory/4300-3-0x0000000000E30000-0x0000000001300000-memory.dmp

memory/4300-4-0x0000000000E30000-0x0000000001300000-memory.dmp