Malware Analysis Report

2025-01-22 15:11

Sample ID 240218-bdvwtscb7s
Target a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac
SHA256 a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac
Tags
orcus 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

a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac

Threat Level: Known bad

The file a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac was found to be: Known bad.

Malicious Activity Summary

orcus rat spyware stealer

Orcus main payload

Orcus

Orcurs Rat Executable

Orcus family

Orcurs Rat Executable

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Legitimate hosting services abused for malware hosting/C2

Drops file in Program Files directory

Unsigned PE

Enumerates physical storage devices

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-18 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

2024-02-18 01:02

Reported

2024-02-18 01:04

Platform

win7-20231215-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.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

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A 0.tcp.eu.ngrok.io N/A N/A
N/A 0.tcp.eu.ngrok.io N/A N/A
N/A 0.tcp.eu.ngrok.io N/A 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\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe N/A
File opened for modification C:\Program Files (x86)\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe N/A
File created C:\Program Files (x86)\Orcus\Orcus.exe.config C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe N/A

Enumerates physical storage devices

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\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe

"C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.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 0.tcp.eu.ngrok.io udp
DE 3.125.223.134:18005 0.tcp.eu.ngrok.io tcp
DE 3.125.223.134:18005 0.tcp.eu.ngrok.io tcp
DE 3.125.223.134:18005 0.tcp.eu.ngrok.io tcp
DE 3.125.223.134:18005 0.tcp.eu.ngrok.io tcp
DE 3.125.223.134:18005 0.tcp.eu.ngrok.io tcp
DE 3.125.223.134:18005 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 18.192.31.165:18005 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:18005 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:18005 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:18005 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:18005 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:18005 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 3.125.102.39:18005 0.tcp.eu.ngrok.io tcp
DE 3.125.102.39:18005 0.tcp.eu.ngrok.io tcp

Files

memory/2076-0-0x00000000001A0000-0x0000000000288000-memory.dmp

memory/2076-1-0x00000000749E0000-0x00000000750CE000-memory.dmp

memory/2076-3-0x0000000001DE0000-0x0000000001E20000-memory.dmp

memory/2076-2-0x00000000004D0000-0x00000000004DE000-memory.dmp

memory/2076-4-0x0000000001E20000-0x0000000001E7C000-memory.dmp

memory/2076-5-0x0000000001DD0000-0x0000000001DE2000-memory.dmp

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

MD5 27dd00a457c846114cb1d2f1a05d769e
SHA1 41c6149f963a66c6a7e75871731740e52dec7ea8
SHA256 a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac
SHA512 b27b13e078a39cfc3cfc2e5a41831f6565aac128aaede93093f220eb134e3d589b4c8f71317b3a1d0df880578abef774620ac09b0e9d1fb0454f8298ba38f81e

memory/2076-13-0x00000000749E0000-0x00000000750CE000-memory.dmp

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

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

memory/2404-16-0x00000000742F0000-0x00000000749DE000-memory.dmp

memory/2404-17-0x0000000000030000-0x0000000000118000-memory.dmp

memory/2404-18-0x00000000042F0000-0x0000000004330000-memory.dmp

memory/2404-19-0x0000000000760000-0x0000000000772000-memory.dmp

memory/2404-20-0x0000000002080000-0x0000000002098000-memory.dmp

memory/2404-21-0x0000000000780000-0x0000000000790000-memory.dmp

memory/2404-22-0x00000000742F0000-0x00000000749DE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-18 01:02

Reported

2024-02-18 01:04

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.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

Description Indicator Process Target
N/A 0.tcp.eu.ngrok.io N/A N/A
N/A 0.tcp.eu.ngrok.io N/A N/A
N/A 0.tcp.eu.ngrok.io N/A 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\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe N/A
File opened for modification C:\Program Files (x86)\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe N/A
File created C:\Program Files (x86)\Orcus\Orcus.exe.config C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe N/A

Enumerates physical storage devices

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\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe

"C:\Users\Admin\AppData\Local\Temp\a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 3.124.142.205:18005 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
DE 3.124.142.205:18005 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
DE 3.124.142.205:18005 0.tcp.eu.ngrok.io tcp
US 138.91.171.81:80 tcp
DE 3.124.142.205:18005 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
DE 3.124.142.205:18005 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 18.192.31.165:18005 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
DE 18.192.31.165:18005 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:18005 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:18005 0.tcp.eu.ngrok.io tcp
DE 18.192.31.165:18005 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 0.tcp.eu.ngrok.io udp
DE 18.158.249.75:18005 0.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 23.173.189.20.in-addr.arpa udp
DE 18.158.249.75:18005 0.tcp.eu.ngrok.io tcp

Files

memory/4776-0-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/4776-1-0x00000000007E0000-0x00000000008C8000-memory.dmp

memory/4776-2-0x0000000005290000-0x00000000052A0000-memory.dmp

memory/4776-3-0x0000000002B70000-0x0000000002B7E000-memory.dmp

memory/4776-4-0x00000000052A0000-0x00000000052FC000-memory.dmp

memory/4776-5-0x0000000005910000-0x0000000005EB4000-memory.dmp

memory/4776-6-0x0000000005400000-0x0000000005492000-memory.dmp

memory/4776-7-0x00000000058E0000-0x00000000058F2000-memory.dmp

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

MD5 24988f0f06d3038e6bd63efa3c26a031
SHA1 a3e3df719ca02f7e67653c916bcf01982243dbbc
SHA256 7e9095531d09a9ad6bfa55e55c6a3b61e5ea2ac8def9d610e3b18d270a455b42
SHA512 c11ec57c800e8cdfe3930844847c26153a0b31c7857eccd9fdd8c5a6a77315d8f2d6cec33e1e61706990c4f21ff79e330dca39b0d39a52c075e3ac77dbf4985e

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

MD5 27dd00a457c846114cb1d2f1a05d769e
SHA1 41c6149f963a66c6a7e75871731740e52dec7ea8
SHA256 a45a942627fd69b6a94be8036a1db9c6efacb552003ed00ff8582717227c19ac
SHA512 b27b13e078a39cfc3cfc2e5a41831f6565aac128aaede93093f220eb134e3d589b4c8f71317b3a1d0df880578abef774620ac09b0e9d1fb0454f8298ba38f81e

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

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

memory/4776-22-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/3248-23-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/3248-24-0x0000000004CF0000-0x0000000004D00000-memory.dmp

memory/3248-25-0x00000000051F0000-0x0000000005208000-memory.dmp

memory/3248-26-0x0000000005280000-0x0000000005290000-memory.dmp

memory/3248-27-0x0000000005E80000-0x0000000005E8A000-memory.dmp

memory/3248-28-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/3248-29-0x0000000004CF0000-0x0000000004D00000-memory.dmp