Malware Analysis Report

2025-03-15 06:42

Sample ID 250126-bfnkjayjdl
Target 08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3
SHA256 08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3
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

08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3

Threat Level: Known bad

The file 08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3 was found to be: Known bad.

Malicious Activity Summary

rat orcus discovery spyware stealer

Orcus

Orcus family

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-26 01:05

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 01:05

Reported

2025-01-26 01:07

Platform

win7-20240903-en

Max time kernel

147s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3.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\08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3.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\08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3.exe

"C:\Users\Admin\AppData\Local\Temp\08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3.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/3068-0-0x000000007409E000-0x000000007409F000-memory.dmp

memory/3068-1-0x00000000002E0000-0x00000000003B8000-memory.dmp

memory/3068-2-0x0000000000200000-0x000000000020A000-memory.dmp

memory/3068-3-0x0000000074090000-0x000000007477E000-memory.dmp

memory/3068-4-0x0000000000290000-0x00000000002DC000-memory.dmp

memory/3068-7-0x0000000000590000-0x00000000005DE000-memory.dmp

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

MD5 b678cfd23d26f187292a8baffd715cc2
SHA1 d06fad601014f7acd42947edf55ce83a60570cee
SHA256 08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3
SHA512 943a7157b25985e866871f06a75b2e8fefc7b07deac64c65291760fee499527e275b8c41b61e319fad6fb63176a665e2de53d700d27993c85a6b42307836d345

memory/2692-16-0x0000000074090000-0x000000007477E000-memory.dmp

memory/2692-17-0x0000000074090000-0x000000007477E000-memory.dmp

memory/2692-15-0x0000000000210000-0x00000000002E8000-memory.dmp

memory/3068-14-0x0000000074090000-0x000000007477E000-memory.dmp

memory/2692-18-0x00000000005C0000-0x00000000005D0000-memory.dmp

memory/2692-19-0x0000000074090000-0x000000007477E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-26 01:05

Reported

2025-01-26 01:07

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3.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\08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3.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

Processes

C:\Users\Admin\AppData\Local\Temp\08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3.exe

"C:\Users\Admin\AppData\Local\Temp\08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 184.115.23.2.in-addr.arpa udp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:10134 tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
N/A 127.0.0.1:10134 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 181.129.81.91.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 43.229.111.52.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
US 8.8.8.8:53 udp

Files

memory/4916-0-0x000000007529E000-0x000000007529F000-memory.dmp

memory/4916-1-0x0000000000840000-0x0000000000918000-memory.dmp

memory/4916-2-0x0000000002C00000-0x0000000002C0A000-memory.dmp

memory/4916-3-0x0000000075290000-0x0000000075A40000-memory.dmp

memory/4916-4-0x00000000059E0000-0x0000000005F84000-memory.dmp

memory/4916-5-0x00000000057D0000-0x0000000005862000-memory.dmp

memory/4916-6-0x0000000005730000-0x000000000577C000-memory.dmp

memory/4916-9-0x0000000005870000-0x00000000058BE000-memory.dmp

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

MD5 b678cfd23d26f187292a8baffd715cc2
SHA1 d06fad601014f7acd42947edf55ce83a60570cee
SHA256 08ae2dea6f39e6c0abcf607a36d7241781887c27421250d9d85d6f32e86b13a3
SHA512 943a7157b25985e866871f06a75b2e8fefc7b07deac64c65291760fee499527e275b8c41b61e319fad6fb63176a665e2de53d700d27993c85a6b42307836d345

memory/2528-22-0x0000000075290000-0x0000000075A40000-memory.dmp

memory/4916-21-0x0000000075290000-0x0000000075A40000-memory.dmp

memory/2528-23-0x0000000075290000-0x0000000075A40000-memory.dmp

memory/2528-24-0x0000000005E40000-0x0000000006002000-memory.dmp

memory/2528-25-0x0000000005620000-0x0000000005630000-memory.dmp

memory/2528-26-0x0000000005DB0000-0x0000000005DBA000-memory.dmp

memory/2528-27-0x0000000075290000-0x0000000075A40000-memory.dmp