Analysis Overview
SHA256
936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558
Threat Level: Known bad
The file 936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe was found to be: Known bad.
Malicious Activity Summary
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
Enterprise Matrix V15
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 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
Signatures
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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 |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.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
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2356 wrote to memory of 2596 | N/A | C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 2356 wrote to memory of 2596 | N/A | C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 2356 wrote to memory of 2596 | N/A | C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe | C:\Windows\SysWOW64\WindowsInput.exe |
| PID 2356 wrote to memory of 2596 | N/A | C:\Users\Admin\AppData\Local\Temp\936d8514d749535de5ecc732662bd282b5a0efd38667996f585b34f9b1a8d558.exe | C:\Windows\SysWOW64\WindowsInput.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" --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
Signatures
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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