Malware Analysis Report

2025-03-15 06:51

Sample ID 240101-ymz88sggfl
Target 936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe
SHA256 936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558
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

936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558

Threat Level: Known bad

The file 936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe was found to be: Known bad.

Malicious Activity Summary

orcus rat spyware stealer

Orcus main payload

Orcus family

Orcurs Rat Executable

Orcus

Contains code to disable Windows Defender

Orcurs Rat Executable

Loads dropped DLL

Executes dropped EXE

Legitimate hosting services abused for malware hosting/C2

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-01 19:54

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

2024-01-01 19:54

Reported

2024-01-01 19:57

Platform

win7-20231215-en

Max time kernel

1s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe"

Signatures

Contains code to disable Windows Defender

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

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

Legitimate hosting services abused for malware hosting/C2

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\WindowsInput.exe C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe N/A
File created C:\Windows\SysWOW64\WindowsInput.exe.config C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe

"C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe"

C:\Windows\SysWOW64\WindowsInput.exe

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

C:\Windows\SysWOW64\WindowsInput.exe

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"powershell" Get-MpPreference -verbose

C:\Program Files (x86)\Win32\UpdateSystem32.exe

"C:\Program Files (x86)\Win32\UpdateSystem32.exe"

C:\Users\Admin\AppData\Roaming\Windows Defender.exe

"C:\Users\Admin\AppData\Roaming\Windows Defender.exe" /watchProcess "C:\Program Files (x86)\Win32\UpdateSystem32.exe" 1044 "/protectFile"

C:\Users\Admin\AppData\Roaming\Windows Defender.exe

"C:\Users\Admin\AppData\Roaming\Windows Defender.exe" /launchSelfAndExit "C:\Program Files (x86)\Win32\UpdateSystem32.exe" 1044 /protectFile

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"powershell" Get-MpPreference -verbose

C:\Windows\system32\taskeng.exe

taskeng.exe {0D1F85C7-030C-4AED-8AB5-2482A8CD0034} S-1-5-21-3818056530-936619650-3554021955-1000:SFVRQGEO\Admin:Interactive:[1]

C:\Program Files (x86)\Win32\UpdateSystem32.exe

"C:\Program Files (x86)\Win32\UpdateSystem32.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 5.tcp.eu.ngrok.io udp
DE 3.64.4.198:11720 5.tcp.eu.ngrok.io tcp
DE 3.64.4.198:11720 5.tcp.eu.ngrok.io tcp
DE 3.64.4.198:11720 5.tcp.eu.ngrok.io tcp
DE 3.64.4.198:11720 5.tcp.eu.ngrok.io tcp
DE 3.64.4.198:11720 5.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 5.tcp.eu.ngrok.io udp
DE 3.67.112.102:11720 5.tcp.eu.ngrok.io tcp
DE 3.67.112.102:11720 5.tcp.eu.ngrok.io tcp
DE 3.67.112.102:11720 5.tcp.eu.ngrok.io tcp
DE 3.67.112.102:11720 5.tcp.eu.ngrok.io tcp
DE 3.67.112.102:11720 5.tcp.eu.ngrok.io tcp
DE 3.67.112.102:11720 5.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 5.tcp.eu.ngrok.io udp
DE 3.67.112.102:11720 5.tcp.eu.ngrok.io tcp
DE 3.67.112.102:11720 5.tcp.eu.ngrok.io tcp

Files

memory/2356-0-0x0000000000D50000-0x0000000000E40000-memory.dmp

memory/2356-2-0x00000000049D0000-0x0000000004A10000-memory.dmp

memory/2356-3-0x00000000001C0000-0x00000000001CE000-memory.dmp

memory/2356-4-0x0000000000530000-0x000000000058C000-memory.dmp

memory/2356-1-0x00000000744D0000-0x0000000074BBE000-memory.dmp

memory/2356-7-0x0000000000420000-0x000000000042A000-memory.dmp

memory/2356-10-0x0000000000490000-0x0000000000498000-memory.dmp

memory/2356-9-0x0000000000480000-0x0000000000488000-memory.dmp

memory/2356-8-0x0000000000430000-0x0000000000438000-memory.dmp

memory/2356-6-0x0000000000410000-0x0000000000418000-memory.dmp

memory/2356-5-0x0000000000250000-0x0000000000262000-memory.dmp

memory/2596-20-0x0000000000D90000-0x0000000000D9C000-memory.dmp

memory/2596-21-0x000007FEF5660000-0x000007FEF604C000-memory.dmp

memory/2596-22-0x000000001A7A0000-0x000000001A820000-memory.dmp

memory/2704-27-0x000007FEF4C70000-0x000007FEF565C000-memory.dmp

memory/2596-25-0x000007FEF5660000-0x000007FEF604C000-memory.dmp

memory/3036-36-0x0000000002F80000-0x0000000002FC0000-memory.dmp

memory/3036-37-0x0000000002F80000-0x0000000002FC0000-memory.dmp

memory/3036-35-0x000000006D790000-0x000000006DD3B000-memory.dmp

memory/3036-34-0x000000006D790000-0x000000006DD3B000-memory.dmp

memory/3036-38-0x000000006D790000-0x000000006DD3B000-memory.dmp

memory/2356-48-0x00000000744D0000-0x0000000074BBE000-memory.dmp

memory/1044-49-0x00000000744D0000-0x0000000074BBE000-memory.dmp

memory/1044-50-0x0000000004940000-0x0000000004980000-memory.dmp

memory/1044-47-0x0000000001220000-0x0000000001310000-memory.dmp

memory/1044-53-0x0000000000D10000-0x0000000000D5E000-memory.dmp

memory/1044-54-0x0000000004920000-0x0000000004938000-memory.dmp

memory/1044-55-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

memory/1944-62-0x00000000744D0000-0x0000000074BBE000-memory.dmp

memory/2028-66-0x0000000002FF0000-0x0000000003030000-memory.dmp

memory/1944-68-0x0000000000440000-0x0000000000480000-memory.dmp

memory/2028-69-0x000000006C460000-0x000000006CA0B000-memory.dmp

memory/2332-82-0x00000000744D0000-0x0000000074BBE000-memory.dmp

memory/2212-85-0x00000000744D0000-0x0000000074BBE000-memory.dmp

memory/2332-84-0x00000000744D0000-0x0000000074BBE000-memory.dmp

memory/2704-83-0x000007FEF4C70000-0x000007FEF565C000-memory.dmp

memory/2332-80-0x0000000000EF0000-0x0000000000EF8000-memory.dmp

memory/2028-67-0x000000006C460000-0x000000006CA0B000-memory.dmp

memory/2028-65-0x0000000002FF0000-0x0000000003030000-memory.dmp

memory/2028-64-0x000000006C460000-0x000000006CA0B000-memory.dmp

memory/2028-63-0x0000000002FF0000-0x0000000003030000-memory.dmp

memory/1944-86-0x00000000744D0000-0x0000000074BBE000-memory.dmp

memory/1044-87-0x00000000744D0000-0x0000000074BBE000-memory.dmp

memory/1044-88-0x0000000004940000-0x0000000004980000-memory.dmp

memory/2212-89-0x00000000744D0000-0x0000000074BBE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-01 19:54

Reported

2024-01-01 19:57

Platform

win10v2004-20231215-en

Max time kernel

0s

Max time network

32s

Command Line

"C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe"

Signatures

Contains code to disable Windows Defender

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

Orcus

rat spyware stealer orcus

Orcurs Rat Executable

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

Legitimate hosting services abused for malware hosting/C2

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Program Files (x86)\Win32\UpdateSystem32.exe

Processes

C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe

"C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe"

C:\Windows\SysWOW64\WindowsInput.exe

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"powershell" Get-MpPreference -verbose

C:\Windows\SysWOW64\WindowsInput.exe

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

C:\Program Files (x86)\Win32\UpdateSystem32.exe

"C:\Program Files (x86)\Win32\UpdateSystem32.exe"

C:\Program Files (x86)\Win32\UpdateSystem32.exe

"C:\Program Files (x86)\Win32\UpdateSystem32.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"powershell" Get-MpPreference -verbose

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1552 -ip 1552

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1552 -s 1636

Network

Country Destination Domain Proto
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 146.177.190.20.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 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 5.tcp.eu.ngrok.io udp
DE 18.158.58.205:11720 5.tcp.eu.ngrok.io tcp
US 8.8.8.8:53 205.58.158.18.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp

Files

memory/4636-0-0x00000000006E0000-0x00000000007D0000-memory.dmp

memory/4636-2-0x00000000051A0000-0x00000000051B0000-memory.dmp

memory/4636-3-0x0000000002A80000-0x0000000002A8E000-memory.dmp

memory/4636-4-0x00000000051B0000-0x000000000520C000-memory.dmp

memory/4636-6-0x00000000052E0000-0x0000000005372000-memory.dmp

memory/4636-5-0x00000000057C0000-0x0000000005D64000-memory.dmp

memory/4636-1-0x0000000074BE0000-0x0000000075390000-memory.dmp

memory/4636-7-0x00000000052C0000-0x00000000052D2000-memory.dmp

memory/4636-12-0x0000000005730000-0x0000000005738000-memory.dmp

memory/4636-13-0x0000000005EE0000-0x0000000005F46000-memory.dmp

memory/4636-11-0x0000000005720000-0x0000000005728000-memory.dmp

memory/4636-15-0x0000000005F50000-0x0000000005F62000-memory.dmp

memory/4636-16-0x0000000005FB0000-0x0000000005FEC000-memory.dmp

memory/4636-17-0x0000000005FF0000-0x000000000603C000-memory.dmp

memory/4636-14-0x0000000006570000-0x0000000006B88000-memory.dmp

memory/4636-10-0x0000000005710000-0x0000000005718000-memory.dmp

memory/4636-9-0x0000000005700000-0x000000000570A000-memory.dmp

memory/4636-18-0x0000000006160000-0x000000000626A000-memory.dmp

memory/4636-8-0x00000000052D0000-0x00000000052D8000-memory.dmp

memory/4636-20-0x00000000064F0000-0x0000000006512000-memory.dmp

memory/2180-34-0x00000000002E0000-0x00000000002EC000-memory.dmp

memory/2180-37-0x0000000000C30000-0x0000000000C6C000-memory.dmp

memory/2180-38-0x000000001B1D0000-0x000000001B1E0000-memory.dmp

memory/2180-42-0x00007FFBE8760000-0x00007FFBE9221000-memory.dmp

memory/2628-45-0x0000000000F00000-0x0000000000F10000-memory.dmp

memory/2628-46-0x000000001AD80000-0x000000001AE8A000-memory.dmp

memory/2628-44-0x00007FFBE8880000-0x00007FFBE9341000-memory.dmp

memory/2180-36-0x00007FFBE8760000-0x00007FFBE9221000-memory.dmp

memory/536-51-0x00000000023A0000-0x00000000023D6000-memory.dmp

memory/536-55-0x00000000023F0000-0x0000000002400000-memory.dmp

memory/536-57-0x00000000054D0000-0x0000000005536000-memory.dmp

memory/536-56-0x0000000004CF0000-0x0000000004D12000-memory.dmp

memory/536-67-0x00000000056A0000-0x00000000059F4000-memory.dmp

memory/536-54-0x00000000023F0000-0x0000000002400000-memory.dmp

memory/536-68-0x0000000005CC0000-0x0000000005CDE000-memory.dmp

memory/536-53-0x0000000074BE0000-0x0000000075390000-memory.dmp

memory/536-52-0x0000000004E20000-0x0000000005448000-memory.dmp

memory/2180-35-0x00000000009B0000-0x00000000009C2000-memory.dmp

memory/536-71-0x0000000070FC0000-0x000000007100C000-memory.dmp

memory/536-85-0x0000000006EC0000-0x0000000006F63000-memory.dmp

memory/536-84-0x00000000023F0000-0x0000000002400000-memory.dmp

memory/536-83-0x00000000062C0000-0x00000000062DE000-memory.dmp

memory/536-87-0x0000000006FF0000-0x000000000700A000-memory.dmp

memory/536-86-0x0000000007630000-0x0000000007CAA000-memory.dmp

memory/536-88-0x0000000007060000-0x000000000706A000-memory.dmp

memory/536-82-0x00000000023F0000-0x0000000002400000-memory.dmp

memory/536-72-0x000000007F1A0000-0x000000007F1B0000-memory.dmp

memory/536-89-0x0000000007270000-0x0000000007306000-memory.dmp

memory/4636-70-0x0000000074BE0000-0x0000000075390000-memory.dmp

memory/536-90-0x00000000071F0000-0x0000000007201000-memory.dmp

memory/536-69-0x0000000006270000-0x00000000062A2000-memory.dmp

memory/536-92-0x0000000007230000-0x0000000007244000-memory.dmp

memory/536-93-0x0000000007330000-0x000000000734A000-memory.dmp

memory/536-94-0x0000000007310000-0x0000000007318000-memory.dmp

memory/536-91-0x0000000007220000-0x000000000722E000-memory.dmp

memory/536-97-0x0000000074BE0000-0x0000000075390000-memory.dmp

memory/4636-107-0x0000000007AF0000-0x0000000007B3A000-memory.dmp

memory/4636-108-0x0000000008750000-0x0000000008AA4000-memory.dmp

memory/4636-119-0x0000000009F30000-0x0000000009FD3000-memory.dmp

memory/4636-109-0x000000007EED0000-0x000000007EEE0000-memory.dmp

memory/4636-120-0x000000000A450000-0x000000000A461000-memory.dmp

memory/4636-121-0x000000000A470000-0x000000000A484000-memory.dmp

memory/1552-135-0x0000000074BE0000-0x0000000075390000-memory.dmp

memory/4636-134-0x0000000074BE0000-0x0000000075390000-memory.dmp