Malware Analysis Report

2025-03-15 06:54

Sample ID 231221-bjszesfacl
Target 2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868
SHA256 2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868
Tags
orcus persistence 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

2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868

Threat Level: Known bad

The file 2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868 was found to be: Known bad.

Malicious Activity Summary

orcus persistence rat spyware stealer

Orcus family

Orcus main payload

Orcus

Orcurs Rat Executable

Orcurs Rat Executable

Loads dropped DLL

Executes dropped EXE

Checks computer location settings

Legitimate hosting services abused for malware hosting/C2

Adds Run key to start application

Drops file in Program Files directory

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-21 01:10

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

2023-12-21 01:10

Reported

2023-12-21 01:13

Platform

win7-20231129-en

Max time kernel

144s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.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
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
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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Orcus = "\"C:\\Program Files (x86)\\Orcus\\Orcus.exe\"" C:\Program Files (x86)\Orcus\Orcus.exe N/A

Legitimate hosting services abused for malware hosting/C2

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\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.exe N/A
File opened for modification C:\Program Files (x86)\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.exe N/A
File created C:\Program Files (x86)\Orcus\Orcus.exe.config C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.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

Processes

C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.exe

"C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.exe"

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

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

Network

Country Destination Domain Proto
N/A 192.168.0.19:10134 tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.14.182.203:16874 0.tcp.ngrok.io tcp
US 3.14.182.203:16874 0.tcp.ngrok.io tcp
US 3.14.182.203:16874 0.tcp.ngrok.io tcp
US 3.14.182.203:16874 0.tcp.ngrok.io tcp
US 3.14.182.203:16874 0.tcp.ngrok.io tcp
US 3.14.182.203:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:16874 0.tcp.ngrok.io tcp
US 3.13.191.225:16874 0.tcp.ngrok.io tcp
US 3.13.191.225:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.22.30.40:16874 0.tcp.ngrok.io tcp
US 3.22.30.40:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:16874 0.tcp.ngrok.io tcp

Files

memory/1668-0-0x0000000000AD0000-0x0000000000BB8000-memory.dmp

memory/1668-1-0x00000000741D0000-0x00000000748BE000-memory.dmp

memory/1668-2-0x0000000004B80000-0x0000000004BC0000-memory.dmp

memory/1668-3-0x00000000002F0000-0x00000000002FE000-memory.dmp

memory/1668-4-0x0000000000450000-0x00000000004AC000-memory.dmp

memory/1668-5-0x0000000000340000-0x0000000000352000-memory.dmp

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

MD5 decc1e7b34cc22383c4581d5871ea366
SHA1 1ce10c49e05e05289ddf403f6711431a4034c947
SHA256 60f760efccd5abecbd75ec2f322f47c1ed3f285871b844928299f89ffafa54b6
SHA512 d7a5be9ce2fb17c73c3ff75a316accb03e1bde3566731a52384733abec0613dab879b89f641e93e0c184a7a4dbd0b1291cdd7f552c86ca3c6f6aefcd7ded8baf

memory/1668-16-0x00000000741D0000-0x00000000748BE000-memory.dmp

memory/2988-18-0x0000000004990000-0x00000000049D0000-memory.dmp

memory/2988-21-0x0000000000AF0000-0x0000000000B08000-memory.dmp

memory/2988-22-0x0000000000F10000-0x0000000000F20000-memory.dmp

memory/2988-20-0x0000000000970000-0x00000000009BE000-memory.dmp

memory/2988-19-0x00000000003D0000-0x00000000003E2000-memory.dmp

memory/2988-15-0x00000000010C0000-0x00000000011A8000-memory.dmp

memory/2988-17-0x00000000741D0000-0x00000000748BE000-memory.dmp

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

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

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

MD5 1aa5290537ddbe3ed7cd9f7baeacfdc6
SHA1 6e40b62927408949cdaf5710d9a9c1d7b93e6c8f
SHA256 5722d170862c2412195e7a1bcfdc44ed287881f121436f651efccc965ccffbcb
SHA512 efb9545cad5c268cf4d73f972aae97e8b9894919f0c1d47dc44341703b2a3439a253eda2996feb74f0eac3cf2545d524bd15de1ffefe1e475523726422dd9f67

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

MD5 29817e0833cb1f72d8c2705499a29ae2
SHA1 d5a759b807ff642d35445d41284564836a23eaa5
SHA256 4d921023c18f104f45d877c39b747504c56d8d6068b3550d521050f79a772017
SHA512 1962d8495f829edf74ec92574b4638515f45ef7503b11f9009d19c9524f98c35824a304e617ee1bf43daab5902b6deb2e7c0f69956d7128ff8fc58e7dedf6ac5

memory/2988-23-0x00000000741D0000-0x00000000748BE000-memory.dmp

memory/2988-24-0x0000000004990000-0x00000000049D0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-21 01:10

Reported

2023-12-21 01:13

Platform

win10v2004-20231215-en

Max time kernel

3s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.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
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
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.exe N/A

Executes dropped EXE

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

Legitimate hosting services abused for malware hosting/C2

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.exe N/A
File created C:\Program Files (x86)\Orcus\Orcus.exe.config C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.exe N/A
File created C:\Program Files (x86)\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.exe

"C:\Users\Admin\AppData\Local\Temp\2ad34d3585513ff8bd353fedb9ced0dc57c4560ae5e613abe49fd14a81809868.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 19.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
N/A 192.168.0.19:10134 tcp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.17.7.232:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 232.7.17.3.in-addr.arpa udp
US 3.17.7.232:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 3.17.7.232:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 3.17.7.232:16874 0.tcp.ngrok.io tcp
US 3.17.7.232:16874 0.tcp.ngrok.io tcp
US 3.17.7.232:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.13.191.225:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 225.191.13.3.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 3.13.191.225:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 0.tcp.ngrok.io udp
US 3.14.182.203:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 203.182.14.3.in-addr.arpa udp
US 3.14.182.203:16874 0.tcp.ngrok.io tcp
US 3.14.182.203:16874 0.tcp.ngrok.io tcp
US 3.14.182.203:16874 0.tcp.ngrok.io tcp
US 8.8.8.8:53 213.143.182.52.in-addr.arpa udp
US 3.14.182.203:16874 0.tcp.ngrok.io tcp

Files

memory/4532-1-0x00000000003B0000-0x0000000000498000-memory.dmp

memory/4532-0-0x0000000074A90000-0x0000000075240000-memory.dmp

memory/4532-2-0x0000000004EE0000-0x0000000004EF0000-memory.dmp

memory/4532-3-0x0000000002740000-0x000000000274E000-memory.dmp

memory/4532-4-0x0000000004E70000-0x0000000004ECC000-memory.dmp

memory/4532-5-0x00000000054A0000-0x0000000005A44000-memory.dmp

memory/4532-6-0x0000000004FD0000-0x0000000005062000-memory.dmp

memory/4532-7-0x00000000053B0000-0x00000000053C2000-memory.dmp

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

MD5 f521a6bdbd4843bf746c4ed9d09f8be2
SHA1 7891d8c17d91ac0832e7164e930a8b9068b1f81e
SHA256 61b7a389a84e3485decad2812e64f7c5f5070953ba0fbba6992e5420fb3f1f30
SHA512 b8968b1990f36495d66e72cb635cc258a1c8989741199be8e893657873eb7057309761c466a466504e7962a8c16eab83242a42f925c6e1b875a4d4fb8e3e2e2d

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

MD5 423d1b648d342877a125a432c5d5b91d
SHA1 edb0b294d8b9bf0191e5ebcba7c17f989d26631e
SHA256 a8f8077278fd42df884bb213c06e92b49e22c4eea55cbc2e6887e198f4d2d251
SHA512 9fa4cc87be976413e38e23b0171f974fde900645dc40f4b99f4eeaaa34280e85d2ad52bdca63339e577430a7967b75b2445777ab7a8d7ee07a4a1f833d275aa6

memory/4532-23-0x0000000074A90000-0x0000000075240000-memory.dmp

memory/2288-22-0x0000000074A90000-0x0000000075240000-memory.dmp

memory/2288-24-0x00000000055E0000-0x00000000055F0000-memory.dmp

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

MD5 2893d84b81bcace19118e2c40d53808b
SHA1 9e583fd22d911289f7487d9b62404ea63cf1d7ff
SHA256 1a8359f78a82b51fda3fa94930a52fc97cd39b0c9b7d318ab0b0d525647b2285
SHA512 2d272cb9364d924a6fbd2c8f955e32ea9f4c630e004bace5015c63ba05fb67ab5936510b4503ecdced9ef9a16939eb7cc3386db3412296f9774439ff66a1f84b

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

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

memory/2288-25-0x0000000005AB0000-0x0000000005AFE000-memory.dmp

memory/2288-26-0x0000000005B30000-0x0000000005B48000-memory.dmp

memory/2288-27-0x0000000005B90000-0x0000000005BA0000-memory.dmp

memory/2288-28-0x0000000006580000-0x000000000658A000-memory.dmp

memory/2288-29-0x0000000074A90000-0x0000000075240000-memory.dmp

memory/2288-30-0x00000000055E0000-0x00000000055F0000-memory.dmp