Malware Analysis Report

2025-03-15 06:45

Sample ID 250120-bf3dpatpdz
Target 1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64
SHA256 1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64
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

1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64

Threat Level: Known bad

The file 1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64 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

2025-01-20 01:06

Signatures

Orcus family

orcus

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-20 01:06

Reported

2025-01-20 01:08

Platform

win7-20240903-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe

"C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp

Files

memory/1892-0-0x0000000073EAE000-0x0000000073EAF000-memory.dmp

memory/1892-1-0x0000000000CB0000-0x0000000000D8A000-memory.dmp

memory/1892-2-0x0000000000270000-0x000000000027A000-memory.dmp

memory/1892-3-0x0000000073EA0000-0x000000007458E000-memory.dmp

memory/1892-4-0x00000000042A0000-0x00000000042EC000-memory.dmp

memory/1892-5-0x0000000000520000-0x0000000000528000-memory.dmp

memory/1892-8-0x0000000004870000-0x00000000048BE000-memory.dmp

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

MD5 787b41af9d28bb93bb3b8e574f06a4cf
SHA1 9fca5a5fcbd4c1e38e9b1fa52a6af916c3267cd7
SHA256 1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64
SHA512 51663df1670c6da11d262e654fb3cd700b10d1fac2398ff900ff7be84673f6120dbe0290d877b9e07adb53633d5118ed29c5f585d2494a445070c4517e80c740

memory/1892-14-0x0000000073EA0000-0x000000007458E000-memory.dmp

memory/2736-16-0x0000000072ECE000-0x0000000072ECF000-memory.dmp

memory/2736-18-0x0000000072EC0000-0x00000000735AE000-memory.dmp

memory/2736-17-0x0000000000110000-0x00000000001EA000-memory.dmp

memory/2736-19-0x00000000005F0000-0x0000000000600000-memory.dmp

memory/2736-20-0x0000000072ECE000-0x0000000072ECF000-memory.dmp

memory/2736-21-0x0000000072EC0000-0x00000000735AE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-20 01:06

Reported

2025-01-20 01:08

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.exe

"C:\Users\Admin\AppData\Local\Temp\1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64.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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 131.50.22.2.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 167.173.78.104.in-addr.arpa udp
N/A 10.0.0.121:10134 tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
N/A 10.0.0.121:10134 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
N/A 10.0.0.121:10134 tcp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 166.190.18.2.in-addr.arpa udp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
N/A 10.0.0.121:10134 tcp
US 8.8.8.8:53 udp

Files

memory/3352-0-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

memory/3352-1-0x0000000000420000-0x00000000004FA000-memory.dmp

memory/3352-2-0x0000000004E50000-0x0000000004E5A000-memory.dmp

memory/3352-3-0x0000000074BD0000-0x0000000075380000-memory.dmp

memory/3352-4-0x0000000005770000-0x0000000005D14000-memory.dmp

memory/3352-5-0x00000000053C0000-0x0000000005452000-memory.dmp

memory/3352-6-0x00000000050C0000-0x000000000510C000-memory.dmp

memory/3352-7-0x0000000005460000-0x00000000054C6000-memory.dmp

memory/3352-8-0x0000000005750000-0x0000000005758000-memory.dmp

memory/3352-11-0x0000000005F40000-0x0000000005F8E000-memory.dmp

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

MD5 787b41af9d28bb93bb3b8e574f06a4cf
SHA1 9fca5a5fcbd4c1e38e9b1fa52a6af916c3267cd7
SHA256 1f1a5f729de96c4f5d3f317ba1254ca8b2ccbc4538e0a9664326a57e613eed64
SHA512 51663df1670c6da11d262e654fb3cd700b10d1fac2398ff900ff7be84673f6120dbe0290d877b9e07adb53633d5118ed29c5f585d2494a445070c4517e80c740

memory/3352-23-0x0000000074BD0000-0x0000000075380000-memory.dmp

memory/1464-24-0x0000000074BD0000-0x0000000075380000-memory.dmp

memory/1464-25-0x0000000074BD0000-0x0000000075380000-memory.dmp

memory/1464-26-0x0000000006A10000-0x0000000006BD2000-memory.dmp

memory/1464-27-0x0000000006990000-0x00000000069A0000-memory.dmp

memory/1464-28-0x0000000006F70000-0x0000000006F7A000-memory.dmp

memory/1464-29-0x0000000074BD0000-0x0000000075380000-memory.dmp