Malware Analysis Report

2025-03-15 06:40

Sample ID 250126-bmqy8swqd1
Target a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908
SHA256 a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908
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

a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908

Threat Level: Known bad

The file a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908 was found to be: Known bad.

Malicious Activity Summary

rat orcus discovery spyware stealer

Orcus family

Orcus

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-26 01:15

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 01:15

Reported

2025-01-26 01:18

Platform

win7-20240903-en

Max time kernel

145s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe

"C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp

Files

memory/2244-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

memory/2244-1-0x0000000000C10000-0x0000000000CE8000-memory.dmp

memory/2244-2-0x00000000001B0000-0x00000000001BA000-memory.dmp

memory/2244-3-0x0000000074AC0000-0x00000000751AE000-memory.dmp

memory/2244-4-0x0000000000270000-0x00000000002BC000-memory.dmp

memory/2244-7-0x00000000020F0000-0x000000000213E000-memory.dmp

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

MD5 0ff88f2d12dcbab52e70519e4f7c4fdc
SHA1 8382f9791b597fda7c565a8d82337d904bd5572d
SHA256 a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908
SHA512 b09f1cc3a90dcae3bd4eefdc4c45433387a5729e38e460d66c66acaab0eaf49b7f5f1f1bfa425d998c5de5dab05f8393d6d990b9f592dc15f012e019dc5075e4

memory/2324-15-0x0000000074AC0000-0x00000000751AE000-memory.dmp

memory/2244-14-0x0000000074AC0000-0x00000000751AE000-memory.dmp

memory/2324-16-0x0000000001390000-0x0000000001468000-memory.dmp

memory/2324-17-0x0000000074AC0000-0x00000000751AE000-memory.dmp

memory/2324-18-0x00000000005B0000-0x00000000005C0000-memory.dmp

memory/2324-19-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-26 01:15

Reported

2025-01-26 01:18

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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\Roaming\Microsoft\Speech\AudioDriver.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.exe

"C:\Users\Admin\AppData\Local\Temp\a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908.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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 214.72.21.2.in-addr.arpa udp
N/A 192.168.1.42:8888 tcp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 7.98.51.23.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
N/A 192.168.1.42:8888 tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
N/A 192.168.1.42:8888 tcp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 86.49.80.91.in-addr.arpa udp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp
N/A 192.168.1.42:8888 tcp

Files

memory/3016-0-0x0000000074D1E000-0x0000000074D1F000-memory.dmp

memory/3016-1-0x0000000000070000-0x0000000000148000-memory.dmp

memory/3016-2-0x00000000023F0000-0x00000000023FA000-memory.dmp

memory/3016-3-0x0000000074D10000-0x00000000754C0000-memory.dmp

memory/3016-4-0x00000000050C0000-0x0000000005664000-memory.dmp

memory/3016-5-0x0000000004EB0000-0x0000000004F42000-memory.dmp

memory/3016-6-0x0000000004E10000-0x0000000004E5C000-memory.dmp

memory/3016-9-0x0000000004F50000-0x0000000004F9E000-memory.dmp

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

MD5 0ff88f2d12dcbab52e70519e4f7c4fdc
SHA1 8382f9791b597fda7c565a8d82337d904bd5572d
SHA256 a7f870bd290a04c2186bc8e4d42eb50f91dc22263a76d97015a8dacf5966f908
SHA512 b09f1cc3a90dcae3bd4eefdc4c45433387a5729e38e460d66c66acaab0eaf49b7f5f1f1bfa425d998c5de5dab05f8393d6d990b9f592dc15f012e019dc5075e4

memory/3016-22-0x0000000074D10000-0x00000000754C0000-memory.dmp

memory/3232-21-0x0000000074D10000-0x00000000754C0000-memory.dmp

memory/3232-23-0x0000000074D10000-0x00000000754C0000-memory.dmp

memory/3232-24-0x0000000005AD0000-0x0000000005C92000-memory.dmp

memory/3232-25-0x0000000005480000-0x0000000005490000-memory.dmp

memory/3232-26-0x0000000005F00000-0x0000000005F0A000-memory.dmp

memory/3232-27-0x0000000074D10000-0x00000000754C0000-memory.dmp