Malware Analysis Report

2025-03-15 06:51

Sample ID 231231-lf4lvsbdbl
Target 30ea58dd6e407d3dda5dc7d21b5126c5
SHA256 85d9cae5e66a5a61a367bcd7b7967ed5715fab928604714db8050ccddab5d150
Tags
eblan 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

85d9cae5e66a5a61a367bcd7b7967ed5715fab928604714db8050ccddab5d150

Threat Level: Known bad

The file 30ea58dd6e407d3dda5dc7d21b5126c5 was found to be: Known bad.

Malicious Activity Summary

eblan orcus rat spyware stealer

Orcurs Rat Executable

Orcus family

Orcus main payload

Orcus

Orcurs Rat Executable

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Drops file in System32 directory

Drops file in Windows directory

Unsigned PE

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-31 09:29

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

2023-12-31 09:29

Reported

2024-01-04 02:01

Platform

win7-20231215-en

Max time kernel

157s

Max time network

170s

Command Line

"C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcurs Rat Executable

Description Indicator Process Target
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:\Windows\SysWOW64\WindowsInput.exe N/A
N/A N/A C:\Windows\SysWOW64\WindowsInput.exe N/A
N/A N/A C:\Windows\WindowsWD\svchost.exe N/A
N/A N/A C:\Windows\WindowsWD\svchost.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\WindowsInput.exe C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe N/A
File created C:\Windows\SysWOW64\WindowsInput.exe.config C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe N/A
File created C:\Windows\SysWOW64\WindowsInput.InstallState C:\Windows\SysWOW64\WindowsInput.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\WindowsWD\svchost.exe C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe N/A
File opened for modification C:\Windows\WindowsWD\svchost.exe C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe N/A
File created C:\Windows\WindowsWD\svchost.exe.config C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\WindowsWD\svchost.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\WindowsWD\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2380 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe C:\Windows\SysWOW64\WindowsInput.exe
PID 2380 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe C:\Windows\SysWOW64\WindowsInput.exe
PID 2380 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe C:\Windows\SysWOW64\WindowsInput.exe
PID 2380 wrote to memory of 2652 N/A C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe C:\Windows\SysWOW64\WindowsInput.exe
PID 2380 wrote to memory of 2196 N/A C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe C:\Windows\WindowsWD\svchost.exe
PID 2380 wrote to memory of 2196 N/A C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe C:\Windows\WindowsWD\svchost.exe
PID 2380 wrote to memory of 2196 N/A C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe C:\Windows\WindowsWD\svchost.exe
PID 2380 wrote to memory of 2196 N/A C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe C:\Windows\WindowsWD\svchost.exe
PID 268 wrote to memory of 1060 N/A C:\Windows\system32\taskeng.exe C:\Windows\WindowsWD\svchost.exe
PID 268 wrote to memory of 1060 N/A C:\Windows\system32\taskeng.exe C:\Windows\WindowsWD\svchost.exe
PID 268 wrote to memory of 1060 N/A C:\Windows\system32\taskeng.exe C:\Windows\WindowsWD\svchost.exe
PID 268 wrote to memory of 1060 N/A C:\Windows\system32\taskeng.exe C:\Windows\WindowsWD\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe

"C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe"

C:\Windows\SysWOW64\WindowsInput.exe

"C:\Windows\SysWOW64\WindowsInput.exe" --install

C:\Windows\SysWOW64\WindowsInput.exe

"C:\Windows\SysWOW64\WindowsInput.exe"

C:\Windows\WindowsWD\svchost.exe

"C:\Windows\WindowsWD\svchost.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {4639323D-565F-4994-AB9B-FCC638030042} S-1-5-21-928733405-3780110381-2966456290-1000:VTILVGXH\Admin:Interactive:[1]

C:\Windows\WindowsWD\svchost.exe

C:\Windows\WindowsWD\svchost.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 orcustop4ik.duckdns.org udp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
US 8.8.8.8:53 orcustop4ik.duckdns.org udp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
US 8.8.8.8:53 orcustop4ik.duckdns.org udp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp

Files

memory/2380-0-0x0000000001100000-0x00000000011EA000-memory.dmp

memory/2380-1-0x00000000749D0000-0x00000000750BE000-memory.dmp

memory/2380-2-0x0000000004A00000-0x0000000004A40000-memory.dmp

memory/2380-3-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2380-4-0x0000000000C20000-0x0000000000C7C000-memory.dmp

memory/2380-5-0x0000000000930000-0x0000000000942000-memory.dmp

memory/2652-14-0x0000000001250000-0x000000000125C000-memory.dmp

memory/2652-15-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

memory/2652-16-0x00000000011D0000-0x0000000001250000-memory.dmp

memory/2652-19-0x000007FEF5AB0000-0x000007FEF649C000-memory.dmp

memory/1792-21-0x000007FEF50C0000-0x000007FEF5AAC000-memory.dmp

memory/1792-22-0x0000000019280000-0x0000000019300000-memory.dmp

memory/2380-34-0x00000000749D0000-0x00000000750BE000-memory.dmp

memory/2196-36-0x00000000049F0000-0x0000000004A30000-memory.dmp

memory/2196-37-0x0000000004250000-0x000000000429E000-memory.dmp

memory/2196-35-0x00000000749D0000-0x00000000750BE000-memory.dmp

memory/2196-33-0x0000000000070000-0x000000000015A000-memory.dmp

memory/2196-38-0x0000000002110000-0x0000000002128000-memory.dmp

memory/2196-39-0x00000000042A0000-0x00000000042B0000-memory.dmp

memory/1060-41-0x00000000749D0000-0x00000000750BE000-memory.dmp

memory/2196-44-0x00000000049F0000-0x0000000004A30000-memory.dmp

memory/2196-43-0x00000000049F0000-0x0000000004A30000-memory.dmp

memory/1060-42-0x0000000000590000-0x00000000005D0000-memory.dmp

memory/1060-45-0x00000000749D0000-0x00000000750BE000-memory.dmp

memory/1792-46-0x000007FEF50C0000-0x000007FEF5AAC000-memory.dmp

memory/2196-47-0x00000000749D0000-0x00000000750BE000-memory.dmp

memory/1792-48-0x0000000019280000-0x0000000019300000-memory.dmp

memory/2196-49-0x00000000049F0000-0x0000000004A30000-memory.dmp

memory/2196-51-0x00000000049F0000-0x0000000004A30000-memory.dmp

memory/2196-50-0x00000000049F0000-0x0000000004A30000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-31 09:29

Reported

2024-01-04 02:01

Platform

win10v2004-20231222-en

Max time kernel

1s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcurs Rat Executable

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsInput.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\WindowsInput.exe C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe N/A
File created C:\Windows\SysWOW64\WindowsInput.exe.config C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe

"C:\Users\Admin\AppData\Local\Temp\30ea58dd6e407d3dda5dc7d21b5126c5.exe"

C:\Windows\SysWOW64\WindowsInput.exe

"C:\Windows\SysWOW64\WindowsInput.exe" --install

C:\Windows\SysWOW64\WindowsInput.exe

"C:\Windows\SysWOW64\WindowsInput.exe"

C:\Windows\WindowsWD\svchost.exe

C:\Windows\WindowsWD\svchost.exe

C:\Windows\WindowsWD\svchost.exe

"C:\Windows\WindowsWD\svchost.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 83.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 orcustop4ik.duckdns.org udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 orcustop4ik.duckdns.org udp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
US 8.8.8.8:53 59.134.221.88.in-addr.arpa udp
IE 52.111.236.21:443 tcp
US 138.91.171.81:80 tcp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp
US 204.79.197.200:443 tcp
RU 77.50.81.90:777 orcustop4ik.duckdns.org tcp

Files

memory/444-1-0x00000000749E0000-0x0000000075190000-memory.dmp

memory/444-2-0x00000000053B0000-0x00000000053C0000-memory.dmp

memory/444-3-0x0000000005370000-0x000000000537E000-memory.dmp

memory/444-4-0x0000000005440000-0x000000000549C000-memory.dmp

memory/444-5-0x0000000005A50000-0x0000000005FF4000-memory.dmp

memory/444-6-0x00000000055A0000-0x0000000005632000-memory.dmp

memory/444-0-0x00000000009A0000-0x0000000000A8A000-memory.dmp

memory/444-8-0x00000000059F0000-0x0000000005A12000-memory.dmp

memory/444-7-0x0000000005580000-0x0000000005592000-memory.dmp

memory/384-22-0x0000000000350000-0x000000000035C000-memory.dmp

memory/384-23-0x0000000002620000-0x0000000002632000-memory.dmp

memory/384-26-0x000000001B010000-0x000000001B020000-memory.dmp

memory/384-25-0x0000000002680000-0x00000000026BC000-memory.dmp

memory/384-24-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp

memory/2860-32-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp

memory/2860-33-0x0000000001250000-0x0000000001260000-memory.dmp

memory/384-30-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp

memory/2860-34-0x000000001AA90000-0x000000001AB9A000-memory.dmp

memory/2648-51-0x00000000749E0000-0x0000000075190000-memory.dmp

memory/444-50-0x00000000749E0000-0x0000000075190000-memory.dmp

memory/2648-53-0x00000000057F0000-0x0000000005808000-memory.dmp

memory/2648-52-0x0000000005780000-0x00000000057CE000-memory.dmp

memory/2648-55-0x0000000006150000-0x0000000006168000-memory.dmp

memory/2648-58-0x00000000064F0000-0x00000000066B2000-memory.dmp

memory/3448-57-0x00000000749E0000-0x0000000075190000-memory.dmp

memory/2648-56-0x0000000006310000-0x0000000006320000-memory.dmp

memory/2648-59-0x0000000006900000-0x000000000690A000-memory.dmp

memory/3448-61-0x00000000749E0000-0x0000000075190000-memory.dmp

memory/2860-62-0x00007FFE7D750000-0x00007FFE7E211000-memory.dmp

memory/2860-63-0x0000000001250000-0x0000000001260000-memory.dmp

memory/2648-64-0x00000000749E0000-0x0000000075190000-memory.dmp