Analysis Overview
SHA256
ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7
Threat Level: Known bad
The file ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7 was found to be: Known bad.
Malicious Activity Summary
Orcus main payload
Orcurs Rat Executable
Orcus family
Orcus
Orcurs Rat Executable
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Drops file in Program Files directory
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of SendNotifyMessage
Suspicious behavior: EnumeratesProcesses
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-05 01:37
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
2024-01-05 01:37
Reported
2024-01-05 01:41
Platform
win7-20231215-en
Max time kernel
163s
Max time network
180s
Command Line
Signatures
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 |
| N/A | N/A | C:\Program Files (x86)\Orcus\Orcus.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\EULA Registry.json = "\"C:\\Program Files (x86)\\Orcus\\Orcus.exe\"" | C:\Program Files (x86)\Orcus\Orcus.exe | 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\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Orcus\Orcus.exe | C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe | N/A |
| File created | C:\Program Files (x86)\Orcus\Orcus.exe.config | C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000_Classes\Local Settings | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe | N/A |
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 |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe
"C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe"
C:\Program Files (x86)\Orcus\Orcus.exe
"C:\Program Files (x86)\Orcus\Orcus.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {00881EB7-CD4F-4C44-A9EB-27D2865C966C} S-1-5-21-1603059206-2004189698-4139800220-1000:AILVMYUM\Admin:Interactive:[1]
C:\Program Files (x86)\Orcus\Orcus.exe
"C:\Program Files (x86)\Orcus\Orcus.exe"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Windows Defender"
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Windows Defender
Network
| Country | Destination | Domain | Proto |
| N/A | 192.168.188.89:10134 | tcp | |
| DE | 84.178.197.171:10134 | tcp | |
| DE | 84.178.197.171:80 | tcp | |
| N/A | 192.168.188.89:80 | tcp | |
| N/A | 192.168.188.89:10134 | tcp | |
| DE | 84.178.197.171:10134 | tcp | |
| DE | 84.178.197.171:80 | tcp | |
| N/A | 192.168.188.89:80 | tcp | |
| N/A | 192.168.188.89:10134 | tcp | |
| DE | 84.178.197.171:10134 | tcp | |
| DE | 84.178.197.171:80 | tcp | |
| N/A | 192.168.188.89:80 | tcp |
Files
memory/2656-1-0x0000000074B90000-0x000000007527E000-memory.dmp
memory/2656-0-0x0000000000C60000-0x0000000000D4C000-memory.dmp
memory/2656-2-0x0000000004BA0000-0x0000000004BE0000-memory.dmp
memory/2656-3-0x0000000000310000-0x000000000031E000-memory.dmp
memory/2656-4-0x0000000000A70000-0x0000000000ACC000-memory.dmp
memory/2656-5-0x0000000000460000-0x0000000000472000-memory.dmp
\Program Files (x86)\Orcus\Orcus.exe
| MD5 | 4fe283a3f154f6be93049792146d573d |
| SHA1 | 3ef55c3c8b177b500a2b28dd7e06c21e12db9124 |
| SHA256 | ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7 |
| SHA512 | 405a45dd6bb745470deb1d01264ef97bc87c97c79b83a52e6bcdacd30e9a3f3ec0590b6888d35bc434ffe3a08177f003177ae0ddf026e8eb8129d29a82abd290 |
C:\Program Files (x86)\Orcus\Orcus.exe.config
| MD5 | a2b76cea3a59fa9af5ea21ff68139c98 |
| SHA1 | 35d76475e6a54c168f536e30206578babff58274 |
| SHA256 | f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839 |
| SHA512 | b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad |
memory/2764-17-0x0000000074B90000-0x000000007527E000-memory.dmp
memory/2656-16-0x0000000074B90000-0x000000007527E000-memory.dmp
memory/2764-18-0x0000000000210000-0x00000000002FC000-memory.dmp
memory/2764-19-0x0000000004A20000-0x0000000004A60000-memory.dmp
memory/2764-20-0x00000000047A0000-0x00000000047EE000-memory.dmp
memory/2764-21-0x0000000002020000-0x0000000002038000-memory.dmp
memory/2764-22-0x00000000047F0000-0x0000000004800000-memory.dmp
memory/2152-26-0x0000000074B90000-0x000000007527E000-memory.dmp
memory/2764-27-0x0000000004A20000-0x0000000004A60000-memory.dmp
C:\Users\Admin\AppData\Roaming\Windows Defender
| MD5 | 913967b216326e36a08010fb70f9dba3 |
| SHA1 | 7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf |
| SHA256 | 8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a |
| SHA512 | c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33 |
memory/2152-30-0x0000000074B90000-0x000000007527E000-memory.dmp
C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
| MD5 | 8dc0f019315b7e6feb17e658d29a77c5 |
| SHA1 | bd14d0e45a31611e5187226e99f1978619eeec2a |
| SHA256 | 45cb8c49cc3c7aab5d1e5a0db9619ae7bae8223e5a76c64df9e0a2e6b5c4d649 |
| SHA512 | 61d0beb2c1b406138aff0b1769cabfc3af4c9e1faee202489880803648bb4c9edb2abb8c6f75b04d8d9ec254d223dd55080f868af50c9ffb5e42c151ba2e8e98 |
memory/2764-48-0x0000000074B90000-0x000000007527E000-memory.dmp
memory/2764-49-0x0000000004A20000-0x0000000004A60000-memory.dmp
memory/2764-50-0x0000000004A20000-0x0000000004A60000-memory.dmp
\??\PIPE\srvsvc
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-05 01:37
Reported
2024-01-05 01:40
Platform
win10v2004-20231215-en
Max time kernel
168s
Max time network
176s
Command Line
Signatures
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-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Orcus\Orcus.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Orcus\Orcus.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EULA Registry.json = "\"C:\\Program Files (x86)\\Orcus\\Orcus.exe\"" | C:\Program Files (x86)\Orcus\Orcus.exe | 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\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe | N/A |
| File opened for modification | C:\Program Files (x86)\Orcus\Orcus.exe | C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe | N/A |
| File created | C:\Program Files (x86)\Orcus\Orcus.exe.config | C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000_Classes\Local Settings | C:\Program Files (x86)\Orcus\Orcus.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000_Classes\Local Settings | C:\Windows\system32\OpenWith.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 |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\OpenWith.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2744 wrote to memory of 544 | N/A | C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe | C:\Program Files (x86)\Orcus\Orcus.exe |
| PID 2744 wrote to memory of 544 | N/A | C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe | C:\Program Files (x86)\Orcus\Orcus.exe |
| PID 2744 wrote to memory of 544 | N/A | C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe | C:\Program Files (x86)\Orcus\Orcus.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe
"C:\Users\Admin\AppData\Local\Temp\ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7.exe"
C:\Program Files (x86)\Orcus\Orcus.exe
"C:\Program Files (x86)\Orcus\Orcus.exe"
C:\Program Files (x86)\Orcus\Orcus.exe
"C:\Program Files (x86)\Orcus\Orcus.exe"
C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 22.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| N/A | 192.168.188.89:10134 | tcp | |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| DE | 84.178.197.171:10134 | tcp | |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| DE | 84.178.197.171:80 | tcp | |
| N/A | 192.168.188.89:80 | tcp | |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| N/A | 192.168.188.89:10134 | tcp | |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| DE | 84.178.197.171:10134 | tcp | |
| DE | 84.178.197.171:80 | tcp | |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| N/A | 192.168.188.89:80 | tcp | |
| N/A | 192.168.188.89:10134 | tcp | |
| US | 8.8.8.8:53 | 91.65.42.20.in-addr.arpa | udp |
| DE | 84.178.197.171:10134 | tcp | |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| DE | 84.178.197.171:80 | tcp |
Files
memory/2744-0-0x0000000075440000-0x0000000075BF0000-memory.dmp
memory/2744-1-0x0000000000760000-0x000000000084C000-memory.dmp
memory/2744-2-0x00000000051B0000-0x00000000051C0000-memory.dmp
memory/2744-3-0x00000000051A0000-0x00000000051AE000-memory.dmp
memory/2744-4-0x00000000051C0000-0x000000000521C000-memory.dmp
memory/2744-5-0x0000000005890000-0x0000000005E34000-memory.dmp
memory/2744-6-0x0000000005380000-0x0000000005412000-memory.dmp
memory/2744-7-0x0000000005860000-0x0000000005872000-memory.dmp
C:\Program Files (x86)\Orcus\Orcus.exe
| MD5 | 4fe283a3f154f6be93049792146d573d |
| SHA1 | 3ef55c3c8b177b500a2b28dd7e06c21e12db9124 |
| SHA256 | ca58c3622823c65d1a9b5a06d1b0b46cd7f6c46c6a7bc2dda5f1b1f52ea186f7 |
| SHA512 | 405a45dd6bb745470deb1d01264ef97bc87c97c79b83a52e6bcdacd30e9a3f3ec0590b6888d35bc434ffe3a08177f003177ae0ddf026e8eb8129d29a82abd290 |
C:\Program Files (x86)\Orcus\Orcus.exe.config
| MD5 | a2b76cea3a59fa9af5ea21ff68139c98 |
| SHA1 | 35d76475e6a54c168f536e30206578babff58274 |
| SHA256 | f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839 |
| SHA512 | b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad |
memory/544-23-0x0000000075440000-0x0000000075BF0000-memory.dmp
memory/2744-24-0x0000000075440000-0x0000000075BF0000-memory.dmp
memory/544-25-0x0000000004C70000-0x0000000004C82000-memory.dmp
memory/544-26-0x0000000005740000-0x000000000578E000-memory.dmp
C:\Program Files (x86)\Orcus\Orcus.exe
| MD5 | 8d683deb8bc1d2c34cc4fb788ee2366b |
| SHA1 | e9f5cb81a3f34108b1e94c46ffd8efade987bafb |
| SHA256 | 641a78653d4e42e38bc1b594e27f4cef63478784c59cb4d4deea55783a537a29 |
| SHA512 | 7a67a179414a4a22f462f66bb8c2bc49d2542da412b57088068556c4b82a88cf40b25ced5d7dde27ab620269e899207ece06be68abd80bf51aa2e401b805854e |
memory/544-28-0x0000000005920000-0x0000000005938000-memory.dmp
memory/3932-30-0x0000000075440000-0x0000000075BF0000-memory.dmp
memory/544-29-0x0000000005AB0000-0x0000000005AC0000-memory.dmp
memory/544-32-0x0000000005DE0000-0x0000000005DEA000-memory.dmp
memory/3932-31-0x0000000001900000-0x0000000001910000-memory.dmp
memory/544-35-0x00000000026F0000-0x0000000002700000-memory.dmp
memory/3932-38-0x0000000075440000-0x0000000075BF0000-memory.dmp
memory/544-39-0x0000000075440000-0x0000000075BF0000-memory.dmp
memory/544-40-0x00000000026F0000-0x0000000002700000-memory.dmp
memory/544-41-0x00000000026F0000-0x0000000002700000-memory.dmp