Malware Analysis Report

2025-03-15 06:48

Sample ID 250115-bg2hsaxnal
Target b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1
SHA256 b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1
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

b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1

Threat Level: Known bad

The file b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1 was found to be: Known bad.

Malicious Activity Summary

rat orcus discovery spyware stealer

Orcus family

Orcus

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-15 01:07

Signatures

Orcus family

orcus

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-15 01:07

Reported

2025-01-15 01:10

Platform

win7-20240903-en

Max time kernel

146s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1.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\b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1.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

Processes

C:\Users\Admin\AppData\Local\Temp\b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1.exe

"C:\Users\Admin\AppData\Local\Temp\b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1.exe"

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

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

Network

Country Destination Domain Proto
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp

Files

memory/2936-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

memory/2936-1-0x0000000001130000-0x000000000120A000-memory.dmp

memory/2936-2-0x0000000000330000-0x000000000033A000-memory.dmp

memory/2936-3-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/2936-4-0x00000000010A0000-0x00000000010EC000-memory.dmp

memory/2936-5-0x0000000000630000-0x0000000000638000-memory.dmp

memory/2936-8-0x0000000004940000-0x000000000498E000-memory.dmp

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

MD5 87bb4d8eea60e5cd562bfa4380078631
SHA1 de28d8733f0d272042f072cbf01ab06211aee62d
SHA256 b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1
SHA512 ee61be05bf1c209e76cabd82a297592a7cd39c111c1e4191c6c1b39d224fcd82fc1f6bde539acf00492b4280fce68672acd5a71d879f65939e1d7d88c702b138

memory/2936-14-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/2700-17-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/2700-16-0x0000000001310000-0x00000000013EA000-memory.dmp

memory/2700-18-0x0000000074A00000-0x00000000750EE000-memory.dmp

memory/2700-19-0x0000000000620000-0x0000000000630000-memory.dmp

memory/2700-20-0x0000000074A00000-0x00000000750EE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-15 01:07

Reported

2025-01-15 01:10

Platform

win10v2004-20241007-en

Max time kernel

150s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1.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

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\b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1.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

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1.exe

"C:\Users\Admin\AppData\Local\Temp\b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1.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 73.159.190.20.in-addr.arpa udp
N/A 127.0.0.1:10134 tcp
US 8.8.8.8:53 167.173.78.104.in-addr.arpa udp
N/A 127.0.0.1:10134 tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
N/A 127.0.0.1:10134 tcp
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 8.8.8.8:53 182.129.81.91.in-addr.arpa udp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp

Files

memory/1588-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

memory/1588-1-0x0000000000D80000-0x0000000000E5A000-memory.dmp

memory/1588-2-0x0000000003100000-0x000000000310A000-memory.dmp

memory/1588-3-0x00000000751A0000-0x0000000075950000-memory.dmp

memory/1588-4-0x0000000005E20000-0x00000000063C4000-memory.dmp

memory/1588-6-0x0000000005C30000-0x0000000005C7C000-memory.dmp

memory/1588-5-0x0000000005CD0000-0x0000000005D62000-memory.dmp

memory/1588-7-0x0000000005CB0000-0x0000000005CB8000-memory.dmp

memory/1588-10-0x0000000005D80000-0x0000000005DCE000-memory.dmp

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

MD5 87bb4d8eea60e5cd562bfa4380078631
SHA1 de28d8733f0d272042f072cbf01ab06211aee62d
SHA256 b3d6cf68e394ae44d2c46f17dfa357e54080d35bd30a7889e714aecbfd8ee9f1
SHA512 ee61be05bf1c209e76cabd82a297592a7cd39c111c1e4191c6c1b39d224fcd82fc1f6bde539acf00492b4280fce68672acd5a71d879f65939e1d7d88c702b138

memory/4900-22-0x00000000751A0000-0x0000000075950000-memory.dmp

memory/1588-23-0x00000000751A0000-0x0000000075950000-memory.dmp

memory/4900-24-0x00000000751A0000-0x0000000075950000-memory.dmp

memory/4900-25-0x00000000063F0000-0x00000000065B2000-memory.dmp

memory/4900-26-0x0000000006320000-0x0000000006330000-memory.dmp

memory/4900-27-0x00000000066D0000-0x00000000066DA000-memory.dmp

memory/4900-28-0x00000000751A0000-0x0000000075950000-memory.dmp