Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
07/05/2024, 01:32
General
- Target beb9b3be2a4de7f67f80826aadcec76c91d979d08571ff83ee5f6653ca8d25c4.exe
- Size 918KB
- Sample240507-bx49lscd41
- SHA256 beb9b3be2a4de7f67f80826aadcec76c91d979d08571ff83ee5f6653ca8d25c4
Malware Config
Extracted
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orcus
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SKIDV3
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bigtitties.hopto.org:1604
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c99184ad8a1a41e3b344d48e60aed638
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autostart_method
Registry
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enable_keylogger
true
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install_path
%SYSTEMROOT%\Windows\appdata\host\svchost.exe
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reconnect_delay
10000
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registry_keyname
HKEY_LOCAL_MACHINE\SYSTEM\State\DateTime
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taskscheduler_taskname
conhost
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watchdog_path
AppData\conhost.exe
Signatures
- Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
- Orcus main payload 1 IoCs
- Orcurs Rat Executable 2 IoCs
- Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 6 IoCs
- Drops file in System32 directory 3 IoCs
- Drops file in Windows directory 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\beb9b3be2a4de7f67f80826aadcec76c91d979d08571ff83ee5f6653ca8d25c4.exe"C:\Users\Admin\AppData\Local\Temp\beb9b3be2a4de7f67f80826aadcec76c91d979d08571ff83ee5f6653ca8d25c4.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install2⤵
- Executes dropped EXE
- Drops file in System32 directory
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C:\Windows\Windows\appdata\host\svchost.exe"C:\Windows\Windows\appdata\host\svchost.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\conhost.exe"C:\Users\Admin\AppData\Roaming\conhost.exe" /launchSelfAndExit "C:\Windows\Windows\appdata\host\svchost.exe" 4684 /protectFile3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\conhost.exe"C:\Users\Admin\AppData\Roaming\conhost.exe" /watchProcess "C:\Windows\Windows\appdata\host\svchost.exe" 4684 "/protectFile"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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-
-
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
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C:\Windows\Windows\appdata\host\svchost.exeC:\Windows\Windows\appdata\host\svchost.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
conhost.exe.log
conhost.exe
WindowsInput.exe
WindowsInput.exe.config
svchost.exe
memory/2756-23-0x0000000000AA0000-0x0000000000AAC000-memory.dmp
memory/2756-31-0x00007FFAED7D0000-0x00007FFAEE291000-memory.dmp
memory/2756-27-0x00007FFAED7D0000-0x00007FFAEE291000-memory.dmp
memory/2756-26-0x0000000002BA0000-0x0000000002BDC000-memory.dmp
memory/2756-25-0x0000000002B30000-0x0000000002B42000-memory.dmp
memory/2756-24-0x00007FFAED7D3000-0x00007FFAED7D5000-memory.dmp
memory/4020-71-0x00000000006D0000-0x00000000006D8000-memory.dmp
memory/4684-57-0x0000000006FF0000-0x0000000006FFA000-memory.dmp
memory/4684-52-0x0000000005D50000-0x0000000005D9E000-memory.dmp
memory/4684-54-0x0000000006700000-0x0000000006718000-memory.dmp
memory/4684-55-0x0000000006AA0000-0x0000000006C62000-memory.dmp
memory/4684-56-0x00000000068E0000-0x00000000068F0000-memory.dmp
memory/4800-7-0x00000000052B0000-0x00000000052C2000-memory.dmp
memory/4800-9-0x0000000005720000-0x0000000005742000-memory.dmp
memory/4800-51-0x00000000744E0000-0x0000000074C90000-memory.dmp
memory/4800-8-0x00000000052C0000-0x00000000052C8000-memory.dmp
memory/4800-0-0x00000000744EE000-0x00000000744EF000-memory.dmp
memory/4800-6-0x00000000051C0000-0x0000000005252000-memory.dmp
memory/4800-5-0x00000000058A0000-0x0000000005E44000-memory.dmp
memory/4800-4-0x0000000005010000-0x000000000506C000-memory.dmp
memory/4800-3-0x00000000744E0000-0x0000000074C90000-memory.dmp
memory/4800-2-0x0000000002BB0000-0x0000000002BBE000-memory.dmp
memory/4800-1-0x00000000005C0000-0x00000000006AC000-memory.dmp
memory/5108-33-0x00007FFAF8AD3000-0x00007FFAF8AD5000-memory.dmp
memory/5108-34-0x000000001A410000-0x000000001A51A000-memory.dmp