Malware Analysis Report

2025-03-15 06:45

Sample ID 250126-bgp5rawngv
Target a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e
SHA256 a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e
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

a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e

Threat Level: Known bad

The file a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e was found to be: Known bad.

Malicious Activity Summary

orcus discovery rat spyware stealer

Orcus

Orcus family

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-26 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

2025-01-26 01:07

Reported

2025-01-26 01:09

Platform

win7-20241010-en

Max time kernel

150s

Max time network

19s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe

"C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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/2424-0-0x00000000748BE000-0x00000000748BF000-memory.dmp

memory/2424-1-0x0000000000800000-0x00000000008D8000-memory.dmp

memory/2424-2-0x00000000004C0000-0x00000000004CA000-memory.dmp

memory/2424-3-0x00000000748B0000-0x0000000074F9E000-memory.dmp

memory/2424-4-0x0000000001F50000-0x0000000001F9C000-memory.dmp

memory/2424-7-0x0000000004260000-0x00000000042AE000-memory.dmp

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

MD5 7c95cc297fcae39019ff52fdb7276ad8
SHA1 25b76402f62aec4449d81677e3135dc3bda11c2a
SHA256 a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e
SHA512 3fe97a3e16509ec3a8330b2dcec3c8844ac3efe2cda9487a469a942a12e9398d5d304583363e7359d63a92f0b90b168687a5625017c3de06263aad75f703f06e

memory/2424-14-0x00000000748B0000-0x0000000074F9E000-memory.dmp

memory/2960-16-0x0000000000D10000-0x0000000000DE8000-memory.dmp

memory/2960-15-0x00000000748B0000-0x0000000074F9E000-memory.dmp

memory/2960-17-0x00000000748B0000-0x0000000074F9E000-memory.dmp

memory/2960-18-0x00000000004A0000-0x00000000004B0000-memory.dmp

memory/2960-19-0x00000000748B0000-0x0000000074F9E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-26 01:07

Reported

2025-01-26 01:09

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.exe

"C:\Users\Admin\AppData\Local\Temp\a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e.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 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 249.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 7.98.51.23.in-addr.arpa udp
N/A 127.0.0.1:10134 tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 9.66.18.2.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
US 8.8.8.8:53 202.110.86.104.in-addr.arpa udp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.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/3100-0-0x0000000074EEE000-0x0000000074EEF000-memory.dmp

memory/3100-1-0x0000000000750000-0x0000000000828000-memory.dmp

memory/3100-2-0x0000000005190000-0x000000000519A000-memory.dmp

memory/3100-3-0x0000000074EE0000-0x0000000075690000-memory.dmp

memory/3100-4-0x0000000005890000-0x0000000005E34000-memory.dmp

memory/3100-5-0x0000000005690000-0x0000000005722000-memory.dmp

memory/3100-6-0x0000000005600000-0x000000000564C000-memory.dmp

memory/3100-9-0x0000000005740000-0x000000000578E000-memory.dmp

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

MD5 7c95cc297fcae39019ff52fdb7276ad8
SHA1 25b76402f62aec4449d81677e3135dc3bda11c2a
SHA256 a6fd6b8898d76951ff72ca66eda65fa3acac5a451244851c473d50cbcb1cbe6e
SHA512 3fe97a3e16509ec3a8330b2dcec3c8844ac3efe2cda9487a469a942a12e9398d5d304583363e7359d63a92f0b90b168687a5625017c3de06263aad75f703f06e

memory/3300-21-0x0000000074EE0000-0x0000000075690000-memory.dmp

memory/3100-22-0x0000000074EE0000-0x0000000075690000-memory.dmp

memory/3300-23-0x0000000074EE0000-0x0000000075690000-memory.dmp

memory/3300-24-0x00000000064C0000-0x0000000006682000-memory.dmp

memory/3300-25-0x0000000005940000-0x0000000005950000-memory.dmp

memory/3300-26-0x0000000006810000-0x000000000681A000-memory.dmp

memory/3300-27-0x0000000074EE0000-0x0000000075690000-memory.dmp