Malware Analysis Report

2024-10-24 18:41

Sample ID 240920-jk984awajf
Target 66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe
SHA256 66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee
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

66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee

Threat Level: Known bad

The file 66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.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 07:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-20 07:44

Reported

2024-09-20 07:47

Platform

win7-20240903-en

Max time kernel

118s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.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\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.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\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.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\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.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\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe

"C:\Users\Admin\AppData\Local\Temp\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp

Files

memory/588-0-0x0000000000BA0000-0x0000000001080000-memory.dmp

memory/588-1-0x0000000077190000-0x0000000077192000-memory.dmp

memory/588-2-0x0000000000BA1000-0x0000000000BB5000-memory.dmp

memory/588-3-0x0000000000BA0000-0x0000000001080000-memory.dmp

memory/588-4-0x0000000000BA0000-0x0000000001080000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-20 07:44

Reported

2024-09-20 07:47

Platform

win10v2004-20240802-en

Max time kernel

96s

Max time network

98s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.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\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.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\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Users\Admin\AppData\Local\Temp\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.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\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.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\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe

"C:\Users\Admin\AppData\Local\Temp\66086180acdad237bf18fa12b759c17330f7eda24c78aba33678ec1a90bb86ee.exe"

Network

Country Destination Domain Proto
RU 185.215.113.103:80 185.215.113.103 tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 103.113.215.185.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.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 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/3160-0-0x00000000000E0000-0x00000000005C0000-memory.dmp

memory/3160-1-0x0000000077C64000-0x0000000077C66000-memory.dmp

memory/3160-2-0x00000000000E1000-0x00000000000F5000-memory.dmp

memory/3160-3-0x00000000000E0000-0x00000000005C0000-memory.dmp

memory/3160-4-0x00000000000E0000-0x00000000005C0000-memory.dmp