Malware Analysis Report

2025-03-15 06:47

Sample ID 250113-bmx3js1mel
Target c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235
SHA256 c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235
Tags
discovery rat orcus spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235

Threat Level: Known bad

The file c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235 was found to be: Known bad.

Malicious Activity Summary

discovery rat orcus spyware stealer

Orcus family

Orcus

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Drops desktop.ini file(s)

Drops file in Windows directory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-13 01:16

Signatures

Orcus family

orcus

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-13 01:16

Reported

2025-01-13 01:18

Platform

win10v2004-20241007-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.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\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.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\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.exe N/A
File opened for modification C:\Windows\assembly\Desktop.ini C:\Users\Admin\AppData\Local\Temp\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.exe N/A
File opened for modification C:\Windows\assembly C:\Users\Admin\AppData\Local\Temp\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.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\Roaming\Microsoft\Speech\AudioDriver.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.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\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.exe

"C:\Users\Admin\AppData\Local\Temp\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.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 8.8.8.8:53 228.249.119.40.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 133.130.81.91.in-addr.arpa udp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 8.8.8.8:53 181.129.81.91.in-addr.arpa udp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp

Files

memory/3680-0-0x0000000074832000-0x0000000074833000-memory.dmp

memory/3680-1-0x0000000074830000-0x0000000074DE1000-memory.dmp

memory/3680-2-0x0000000074830000-0x0000000074DE1000-memory.dmp

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

MD5 56edb111575113d40af0f1c028dcb315
SHA1 018a7abc977ba73e2f66f1e7bf041191089c100c
SHA256 c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235
SHA512 2c87ad1db2ce3745426eb47e76b855124e97747d895d8f5b90adf9018a03c6059dc96537429cf03e2d9af51ca49b751c418820d7a27557e33b8ef54f7305c406

memory/3680-18-0x0000000074830000-0x0000000074DE1000-memory.dmp

memory/2076-19-0x0000000074830000-0x0000000074DE1000-memory.dmp

memory/2076-20-0x0000000074830000-0x0000000074DE1000-memory.dmp

memory/2076-21-0x0000000074830000-0x0000000074DE1000-memory.dmp

memory/2076-22-0x0000000074830000-0x0000000074DE1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-13 01:16

Reported

2025-01-13 01:18

Platform

win7-20240903-en

Max time kernel

147s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.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

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\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.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\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.exe

"C:\Users\Admin\AppData\Local\Temp\c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235.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 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp
US 147.185.221.25:7354 across-entitled.gl.at.ply.gg tcp

Files

memory/2372-0-0x0000000074C11000-0x0000000074C12000-memory.dmp

memory/2372-1-0x0000000074C10000-0x00000000751BB000-memory.dmp

memory/2372-2-0x0000000074C10000-0x00000000751BB000-memory.dmp

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

MD5 56edb111575113d40af0f1c028dcb315
SHA1 018a7abc977ba73e2f66f1e7bf041191089c100c
SHA256 c7b542ac39e8e5a14ef0cd70dc3bb505cbdbef4d737c7cb310353642ca914235
SHA512 2c87ad1db2ce3745426eb47e76b855124e97747d895d8f5b90adf9018a03c6059dc96537429cf03e2d9af51ca49b751c418820d7a27557e33b8ef54f7305c406

memory/2372-12-0x0000000074C10000-0x00000000751BB000-memory.dmp

memory/2268-11-0x0000000074C10000-0x00000000751BB000-memory.dmp

memory/2268-13-0x0000000074C10000-0x00000000751BB000-memory.dmp

memory/2268-14-0x0000000074C10000-0x00000000751BB000-memory.dmp

memory/2268-15-0x0000000074C10000-0x00000000751BB000-memory.dmp

memory/2268-16-0x0000000074C10000-0x00000000751BB000-memory.dmp