Malware Analysis Report

2025-03-15 06:40

Sample ID 250111-bwfjvsxkcy
Target f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee
SHA256 f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee
Tags
orcus discovery rat spyware 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

f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee

Threat Level: Known bad

The file f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee was found to be: Known bad.

Malicious Activity Summary

orcus discovery rat spyware stealer

Orcus family

Orcurs Rat Executable

Orcus main payload

Orcus

Orcurs Rat Executable

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of SendNotifyMessage

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-11 01:29

Signatures

Orcurs Rat Executable

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

Orcus family

orcus

Orcus main payload

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-11 01:29

Reported

2025-01-11 01:32

Platform

win7-20240903-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Orcurs Rat Executable

Description Indicator Process Target
N/A N/A N/A 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\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe

"C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe"

Network

Country Destination Domain Proto
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp

Files

memory/1048-0-0x00000000742EE000-0x00000000742EF000-memory.dmp

memory/1048-1-0x0000000001190000-0x000000000127A000-memory.dmp

memory/1048-2-0x00000000001C0000-0x00000000001CE000-memory.dmp

memory/1048-3-0x00000000742E0000-0x00000000749CE000-memory.dmp

memory/1048-4-0x0000000000990000-0x00000000009EC000-memory.dmp

memory/1048-5-0x0000000000350000-0x0000000000362000-memory.dmp

memory/1048-6-0x0000000000370000-0x0000000000378000-memory.dmp

memory/1048-7-0x00000000003C0000-0x00000000003D8000-memory.dmp

memory/1048-8-0x0000000000AB0000-0x0000000000AC0000-memory.dmp

memory/1048-9-0x00000000742EE000-0x00000000742EF000-memory.dmp

memory/1048-10-0x00000000742E0000-0x00000000749CE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-11 01:29

Reported

2025-01-11 01:32

Platform

win10v2004-20241007-en

Max time kernel

145s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Orcurs Rat Executable

Description Indicator Process Target
N/A N/A N/A 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\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe

"C:\Users\Admin\AppData\Local\Temp\f4d1839c9cf08c78a4764da2dfafa76b9b056fae105ac6d856c931c1651daeee.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
N/A 192.168.31.232:8488 tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
N/A 192.168.31.232:8488 tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
N/A 192.168.31.232:8488 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp
N/A 192.168.31.232:8488 tcp

Files

memory/4440-0-0x00000000753BE000-0x00000000753BF000-memory.dmp

memory/4440-1-0x0000000000D00000-0x0000000000DEA000-memory.dmp

memory/4440-2-0x0000000003170000-0x000000000317E000-memory.dmp

memory/4440-3-0x00000000753B0000-0x0000000075B60000-memory.dmp

memory/4440-4-0x00000000057C0000-0x000000000581C000-memory.dmp

memory/4440-5-0x0000000005F70000-0x0000000006514000-memory.dmp

memory/4440-6-0x0000000005900000-0x0000000005992000-memory.dmp

memory/4440-7-0x0000000005E00000-0x0000000005E12000-memory.dmp

memory/4440-8-0x0000000005E10000-0x0000000005E18000-memory.dmp

memory/4440-9-0x0000000005E30000-0x0000000005E48000-memory.dmp

memory/4440-10-0x0000000005EB0000-0x0000000005EC0000-memory.dmp

memory/4440-11-0x00000000068A0000-0x00000000068AA000-memory.dmp

memory/4440-12-0x00000000753BE000-0x00000000753BF000-memory.dmp

memory/4440-13-0x00000000753B0000-0x0000000075B60000-memory.dmp