Malware Analysis Report

2025-03-15 06:52

Sample ID 231220-bd377sdeak
Target d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29
SHA256 d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29
Tags
orcus kis 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

d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29

Threat Level: Known bad

The file d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29 was found to be: Known bad.

Malicious Activity Summary

orcus kis rat spyware stealer

Orcus main payload

Orcus family

Orcus

Orcurs Rat Executable

Orcurs Rat Executable

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Drops file in Program Files directory

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-20 01:02

Signatures

Orcurs Rat Executable

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

Orcus family

orcus

Orcus main payload

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-20 01:02

Reported

2023-12-20 01:05

Platform

win7-20231215-en

Max time kernel

146s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus main payload

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

Orcurs Rat Executable

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Orcus\Orcus.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe N/A
File opened for modification C:\Program Files (x86)\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe N/A
File created C:\Program Files (x86)\Orcus\Orcus.exe.config C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Orcus\Orcus.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Orcus\Orcus.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Orcus\Orcus.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Orcus\Orcus.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe

"C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe"

C:\Program Files (x86)\Orcus\Orcus.exe

"C:\Program Files (x86)\Orcus\Orcus.exe"

Network

Country Destination Domain Proto
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp

Files

memory/1128-0-0x00000000011E0000-0x00000000012C8000-memory.dmp

memory/1128-1-0x0000000074B10000-0x00000000751FE000-memory.dmp

memory/1128-2-0x0000000004B80000-0x0000000004BC0000-memory.dmp

memory/1128-3-0x0000000000450000-0x000000000045E000-memory.dmp

memory/1128-4-0x0000000000630000-0x000000000068C000-memory.dmp

memory/1128-5-0x00000000006F0000-0x0000000000702000-memory.dmp

\Program Files (x86)\Orcus\Orcus.exe

MD5 2205c76112af16e6dc22a44090960133
SHA1 644812fdc6417d67c0948cb9e05f57065ffa1b5f
SHA256 d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29
SHA512 2f9b1302cc0453eeb9ca7a2b591af92bc69c36dcbab73d5eefd745b5cb3ab725033c72e71cc791ec46bd1c3a30f301322b6478e040cdc2d79e21cc2ba98dbb75

memory/1128-16-0x0000000074B10000-0x00000000751FE000-memory.dmp

memory/2044-18-0x0000000074B10000-0x00000000751FE000-memory.dmp

memory/2044-17-0x0000000001210000-0x00000000012F8000-memory.dmp

C:\Program Files (x86)\Orcus\Orcus.exe.config

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

memory/2044-19-0x0000000004BD0000-0x0000000004C10000-memory.dmp

memory/2044-20-0x0000000000A40000-0x0000000000A58000-memory.dmp

memory/2044-21-0x0000000000AC0000-0x0000000000AD0000-memory.dmp

memory/1128-6-0x0000000000710000-0x0000000000718000-memory.dmp

memory/2044-22-0x0000000074B10000-0x00000000751FE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-20 01:02

Reported

2023-12-20 01:05

Platform

win10v2004-20231215-en

Max time kernel

148s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus main payload

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

Orcurs Rat Executable

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Orcus\Orcus.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe N/A
File opened for modification C:\Program Files (x86)\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe N/A
File created C:\Program Files (x86)\Orcus\Orcus.exe.config C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Orcus\Orcus.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Orcus\Orcus.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Orcus\Orcus.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Orcus\Orcus.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe

"C:\Users\Admin\AppData\Local\Temp\d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29.exe"

C:\Program Files (x86)\Orcus\Orcus.exe

"C:\Program Files (x86)\Orcus\Orcus.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 85.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:1268 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:1268 tcp
N/A 127.0.0.1:10134 tcp
N/A 127.0.0.1:1268 tcp

Files

memory/684-1-0x00000000749B0000-0x0000000075160000-memory.dmp

memory/684-0-0x0000000000C80000-0x0000000000D68000-memory.dmp

memory/684-2-0x00000000055B0000-0x00000000055C0000-memory.dmp

memory/684-3-0x00000000015E0000-0x00000000015EE000-memory.dmp

memory/684-4-0x00000000055C0000-0x000000000561C000-memory.dmp

memory/684-5-0x0000000005C50000-0x00000000061F4000-memory.dmp

memory/684-6-0x0000000005740000-0x00000000057D2000-memory.dmp

memory/684-8-0x0000000005730000-0x0000000005738000-memory.dmp

memory/684-7-0x0000000005720000-0x0000000005732000-memory.dmp

C:\Program Files (x86)\Orcus\Orcus.exe

MD5 2205c76112af16e6dc22a44090960133
SHA1 644812fdc6417d67c0948cb9e05f57065ffa1b5f
SHA256 d3ebc38f1bf79e075733d65f3fb11a3248c4299136b6fa90e2d4de970f6ece29
SHA512 2f9b1302cc0453eeb9ca7a2b591af92bc69c36dcbab73d5eefd745b5cb3ab725033c72e71cc791ec46bd1c3a30f301322b6478e040cdc2d79e21cc2ba98dbb75

C:\Program Files (x86)\Orcus\Orcus.exe

MD5 ad8e828615846904d3ac2c3e673ed168
SHA1 fd73be73080a5c958f3d4dc12b118cddd253e8fe
SHA256 fef488f6b9172a7cfeef24c64188a6ffc3a5a90127ff872b89cf05386c8ca3bf
SHA512 fe3b1147d91813471ab4521f45d89463dcc0dd1601fca26e87c54de5ae16047160d208cebbe5f5346a1733667ed8912f21d30c726b887cafc0d694a054e6cda8

memory/684-24-0x00000000749B0000-0x0000000075160000-memory.dmp

memory/60-23-0x00000000749B0000-0x0000000075160000-memory.dmp

C:\Program Files (x86)\Orcus\Orcus.exe.config

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

memory/60-25-0x0000000005530000-0x0000000005540000-memory.dmp

memory/60-26-0x0000000005AF0000-0x0000000005B08000-memory.dmp

memory/60-28-0x0000000006230000-0x0000000006240000-memory.dmp

memory/60-27-0x0000000006410000-0x00000000065D2000-memory.dmp

memory/60-29-0x0000000006730000-0x000000000673A000-memory.dmp

memory/60-30-0x00000000749B0000-0x0000000075160000-memory.dmp

memory/60-31-0x0000000005530000-0x0000000005540000-memory.dmp