Malware Analysis Report

2025-03-15 06:40

Sample ID 250112-qhatsatlfz
Target idk.exe
SHA256 44ad3ca81f002ab0dd559453f60ce86c7608649962c42ca2ece930ed2ff1116e
Tags
rat orcus discovery 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

44ad3ca81f002ab0dd559453f60ce86c7608649962c42ca2ece930ed2ff1116e

Threat Level: Known bad

The file idk.exe was found to be: Known bad.

Malicious Activity Summary

rat orcus discovery spyware stealer

Orcus family

Orcus

Executes dropped EXE

Checks computer location settings

Drops desktop.ini file(s)

Drops file in Windows directory

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious use of SendNotifyMessage

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-12 13:15

Signatures

Orcus family

orcus

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-12 13:15

Reported

2025-01-12 13:17

Platform

win10ltsc2021-20241211-en

Max time kernel

98s

Max time network

137s

Command Line

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

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2934520114-3201407646-466687995-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\idk.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Drops desktop.ini file(s)

Description Indicator Process Target
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\idk.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\idk.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\idk.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\idk.exe N/A
File opened for modification C:\Windows\assembly C:\Users\Admin\AppData\Local\Temp\idk.exe N/A

Enumerates physical storage devices

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\idk.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Processes

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

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

C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 across-entitled.gl.at.ply.gg udp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 25.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/4576-0-0x0000000075292000-0x0000000075293000-memory.dmp

memory/4576-1-0x0000000075290000-0x0000000075841000-memory.dmp

memory/4576-2-0x0000000075290000-0x0000000075841000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

MD5 cc5e9089906ca9cd8c76688d62be4e1c
SHA1 9fde92321e5939592d8eea3997b83167f232473e
SHA256 44ad3ca81f002ab0dd559453f60ce86c7608649962c42ca2ece930ed2ff1116e
SHA512 1e0c556a3ef3f272c0a91d0463ebf93819711fc1e3fb309b4b1f3a1f7b2358a46c6b6ec6b708074e6ae3178b5272bfb6c0581a2b58f11105d44b1ad04dfee3b3

memory/4576-7-0x0000000075290000-0x0000000075841000-memory.dmp

memory/2960-8-0x0000000075290000-0x0000000075841000-memory.dmp

memory/2960-9-0x0000000075290000-0x0000000075841000-memory.dmp

memory/2960-12-0x0000000075290000-0x0000000075841000-memory.dmp

memory/2960-13-0x0000000075290000-0x0000000075841000-memory.dmp

memory/2960-14-0x0000000075290000-0x0000000075841000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-12 13:15

Reported

2025-01-12 13:17

Platform

win11-20241007-en

Max time kernel

147s

Max time network

151s

Command Line

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

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Drops desktop.ini file(s)

Description Indicator Process Target
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\idk.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\idk.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\assembly C:\Users\Admin\AppData\Local\Temp\idk.exe N/A
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\idk.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\idk.exe N/A

Enumerates physical storage devices

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\idk.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Processes

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

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

C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

"C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 across-entitled.gl.at.ply.gg udp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

memory/3376-0-0x00000000747A1000-0x00000000747A2000-memory.dmp

memory/3376-1-0x00000000747A0000-0x0000000074D51000-memory.dmp

memory/3376-2-0x00000000747A0000-0x0000000074D51000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

MD5 cc5e9089906ca9cd8c76688d62be4e1c
SHA1 9fde92321e5939592d8eea3997b83167f232473e
SHA256 44ad3ca81f002ab0dd559453f60ce86c7608649962c42ca2ece930ed2ff1116e
SHA512 1e0c556a3ef3f272c0a91d0463ebf93819711fc1e3fb309b4b1f3a1f7b2358a46c6b6ec6b708074e6ae3178b5272bfb6c0581a2b58f11105d44b1ad04dfee3b3

memory/5076-19-0x00000000747A0000-0x0000000074D51000-memory.dmp

memory/3376-18-0x00000000747A0000-0x0000000074D51000-memory.dmp

memory/5076-20-0x00000000747A0000-0x0000000074D51000-memory.dmp

memory/5076-21-0x00000000747A0000-0x0000000074D51000-memory.dmp

memory/5076-24-0x00000000747A0000-0x0000000074D51000-memory.dmp

memory/5076-25-0x00000000747A0000-0x0000000074D51000-memory.dmp

memory/5076-26-0x00000000747A0000-0x0000000074D51000-memory.dmp