Analysis
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max time kernel
115s -
max time network
115s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
15-07-2024 02:55
Behavioral task
behavioral1
Sample
6a304800218605bbf0376a4937917dd0N.exe
Resource
win7-20240705-en
General
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Target
6a304800218605bbf0376a4937917dd0N.exe
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Size
912KB
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MD5
6a304800218605bbf0376a4937917dd0
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SHA1
7e1915f93fcc6d68c3f149f41cf1f2920c000d0e
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SHA256
f0ceff7c867f684a2dfd4cdde69d70b7706cf75572564ca73ccff961067e7e78
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SHA512
23d165c56750543a7e4fbf1b6b7c8beed52e368d19b10f09c596f42c582e8887ac44cec2e46228b910ce50c72996106f65076d093a877138eaaba327f693a85a
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SSDEEP
24576:5JNZ4MROxnFIFPurerrcI0AilFEvxHPVoow:5yMi/errcI0AilFEvxHP
Malware Config
Extracted
orcus
caquita
192.168.218.83:10134
b5e6880088804f548175e49c6b0d8710
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autostart_method
Disable
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enable_keylogger
true
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install_path
%programfiles%\Orcus\Orcus.exe
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reconnect_delay
10000
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registry_keyname
Orcus
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taskscheduler_taskname
Orcus
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watchdog_path
AppData\OrcusWatchdog.exe
Signatures
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Orcurs Rat Executable 1 IoCs
Processes:
resource yara_rule behavioral2/memory/2412-1-0x0000000000B00000-0x0000000000BEA000-memory.dmp orcus -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
6a304800218605bbf0376a4937917dd0N.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation 6a304800218605bbf0376a4937917dd0N.exe -
Executes dropped EXE 2 IoCs
Processes:
WindowsInput.exeWindowsInput.exepid Process 2828 WindowsInput.exe 2016 WindowsInput.exe -
Drops file in System32 directory 3 IoCs
Processes:
WindowsInput.exe6a304800218605bbf0376a4937917dd0N.exedescription ioc Process File created C:\Windows\SysWOW64\WindowsInput.InstallState WindowsInput.exe File created C:\Windows\SysWOW64\WindowsInput.exe 6a304800218605bbf0376a4937917dd0N.exe File created C:\Windows\SysWOW64\WindowsInput.exe.config 6a304800218605bbf0376a4937917dd0N.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
6a304800218605bbf0376a4937917dd0N.exedescription pid Process Token: SeDebugPrivilege 2412 6a304800218605bbf0376a4937917dd0N.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
6a304800218605bbf0376a4937917dd0N.exepid Process 2412 6a304800218605bbf0376a4937917dd0N.exe -
Suspicious use of SendNotifyMessage 1 IoCs
Processes:
6a304800218605bbf0376a4937917dd0N.exepid Process 2412 6a304800218605bbf0376a4937917dd0N.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
6a304800218605bbf0376a4937917dd0N.exepid Process 2412 6a304800218605bbf0376a4937917dd0N.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
6a304800218605bbf0376a4937917dd0N.exedescription pid Process procid_target PID 2412 wrote to memory of 2828 2412 6a304800218605bbf0376a4937917dd0N.exe 86 PID 2412 wrote to memory of 2828 2412 6a304800218605bbf0376a4937917dd0N.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\6a304800218605bbf0376a4937917dd0N.exe"C:\Users\Admin\AppData\Local\Temp\6a304800218605bbf0376a4937917dd0N.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2412 -
C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:2828
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
PID:2016
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
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Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad