Malware Analysis Report

2025-03-15 06:47

Sample ID 250114-bsnq3avpap
Target 408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953
SHA256 408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953
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

408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953

Threat Level: Known bad

The file 408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953 was found to be: Known bad.

Malicious Activity Summary

rat orcus discovery spyware stealer

Orcus

Orcus family

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Legitimate hosting services abused for malware hosting/C2

Drops desktop.ini file(s)

Drops file in Windows directory

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-14 01:24

Signatures

Orcus family

orcus

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-14 01:24

Reported

2025-01-14 01:27

Platform

win7-20240903-en

Max time kernel

149s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Executes dropped EXE

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

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A 0.tcp.eu.ngrok.io N/A N/A
N/A 0.tcp.eu.ngrok.io N/A N/A
N/A 0.tcp.eu.ngrok.io N/A N/A
N/A 0.tcp.eu.ngrok.io N/A 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\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A 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\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.exe

"C:\Users\Admin\AppData\Local\Temp\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.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 0.tcp.eu.ngrok.io udp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 3.74.27.83:19443 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 3.71.225.231:19443 0.tcp.eu.ngrok.io tcp
DE 3.71.225.231:19443 0.tcp.eu.ngrok.io tcp
DE 3.71.225.231:19443 0.tcp.eu.ngrok.io tcp
DE 3.71.225.231:19443 0.tcp.eu.ngrok.io tcp
DE 3.71.225.231:19443 tcp

Files

memory/2364-0-0x0000000074841000-0x0000000074842000-memory.dmp

memory/2364-2-0x0000000074840000-0x0000000074DEB000-memory.dmp

memory/2364-1-0x0000000074840000-0x0000000074DEB000-memory.dmp

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

MD5 fe7464234b05dd43a899ecba564bc33e
SHA1 8ff7985f1cc14fbadffa98a8996f1a23210941e6
SHA256 408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953
SHA512 1da2270f3a4c28cdb6c52e23244ef0b72bfab387a327fbc0422f608183b260315980ee364dee98ab0027c7c3bba94c3f06361abb0eddbbf162aaad0bcb52b74b

memory/2364-12-0x0000000074840000-0x0000000074DEB000-memory.dmp

memory/2504-11-0x0000000074840000-0x0000000074DEB000-memory.dmp

memory/2504-13-0x0000000074840000-0x0000000074DEB000-memory.dmp

memory/2504-14-0x0000000074840000-0x0000000074DEB000-memory.dmp

memory/2504-15-0x0000000074840000-0x0000000074DEB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-14 01:24

Reported

2025-01-14 01:27

Platform

win10v2004-20241007-en

Max time kernel

141s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.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\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A 0.tcp.eu.ngrok.io N/A N/A
N/A 0.tcp.eu.ngrok.io N/A N/A
N/A 0.tcp.eu.ngrok.io N/A N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\assembly C:\Users\Admin\AppData\Local\Temp\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.exe N/A
File created C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.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\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe N/A
N/A N/A 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\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.exe

"C:\Users\Admin\AppData\Local\Temp\408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953.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 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 8.153.16.2.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 167.173.78.104.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 18.153.198.123:19443 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
DE 18.153.198.123:19443 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
DE 18.153.198.123:19443 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
DE 3.78.28.71:19443 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 18.192.31.30:19443 0.tcp.eu.ngrok.io tcp
DE 18.192.31.30:19443 0.tcp.eu.ngrok.io tcp
DE 18.192.31.30:19443 0.tcp.eu.ngrok.io tcp
DE 18.192.31.30:19443 0.tcp.eu.ngrok.io tcp

Files

memory/4080-0-0x0000000074852000-0x0000000074853000-memory.dmp

memory/4080-1-0x0000000074850000-0x0000000074E01000-memory.dmp

memory/4080-2-0x0000000074850000-0x0000000074E01000-memory.dmp

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

MD5 fe7464234b05dd43a899ecba564bc33e
SHA1 8ff7985f1cc14fbadffa98a8996f1a23210941e6
SHA256 408208c7baccb589dd4cb6339cda1f089eefcc6aa94c3ffe5d27ff0c50408953
SHA512 1da2270f3a4c28cdb6c52e23244ef0b72bfab387a327fbc0422f608183b260315980ee364dee98ab0027c7c3bba94c3f06361abb0eddbbf162aaad0bcb52b74b

memory/2340-20-0x0000000074850000-0x0000000074E01000-memory.dmp

memory/4080-19-0x0000000074850000-0x0000000074E01000-memory.dmp

memory/2340-18-0x0000000074850000-0x0000000074E01000-memory.dmp

memory/2340-21-0x0000000074850000-0x0000000074E01000-memory.dmp

memory/2340-22-0x0000000074850000-0x0000000074E01000-memory.dmp

memory/2340-23-0x0000000074850000-0x0000000074E01000-memory.dmp