Analysis
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max time kernel
147s -
max time network
162s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
07-07-2022 16:01
Static task
static1
Behavioral task
behavioral1
Sample
4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe
Resource
win10v2004-20220414-en
General
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Target
4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe
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Size
909KB
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MD5
0766f3d3a085ff223182010af4678eef
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SHA1
3b4c8be4d002121a9e604864fbe1897c598467c0
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SHA256
4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e
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SHA512
7f4c05d364b4c683f7f7f054099200b21023abfb4ddea7f5f65133f6904d9fea10bfb616ab2a336893d5e31541a551730991f94e1a4610cd422a754022980254
Malware Config
Extracted
orcus
185.209.23.119:10134
d4911beaeae0483b888d4daf666bbb74
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autostart_method
Registry
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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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Orcus main payload 3 IoCs
Processes:
resource yara_rule C:\Program Files\Orcus\Orcus.exe family_orcus C:\Program Files\Orcus\Orcus.exe family_orcus C:\Program Files\Orcus\Orcus.exe family_orcus -
Orcurs Rat Executable 5 IoCs
Processes:
resource yara_rule behavioral1/memory/908-54-0x0000000001090000-0x000000000117A000-memory.dmp orcus C:\Program Files\Orcus\Orcus.exe orcus behavioral1/memory/956-67-0x00000000011B0000-0x000000000129A000-memory.dmp orcus C:\Program Files\Orcus\Orcus.exe orcus C:\Program Files\Orcus\Orcus.exe orcus -
Executes dropped EXE 3 IoCs
Processes:
WindowsInput.exeOrcus.exeOrcus.exepid process 1044 WindowsInput.exe 956 Orcus.exe 940 Orcus.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Orcus.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\Orcus = "\"C:\\Program Files\\Orcus\\Orcus.exe\"" Orcus.exe -
Drops file in System32 directory 3 IoCs
Processes:
4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exeWindowsInput.exedescription ioc process File created C:\Windows\SysWOW64\WindowsInput.exe 4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe File created C:\Windows\SysWOW64\WindowsInput.exe.config 4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe File created C:\Windows\SysWOW64\WindowsInput.InstallState WindowsInput.exe -
Drops file in Program Files directory 3 IoCs
Processes:
4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exedescription ioc process File created C:\Program Files\Orcus\Orcus.exe 4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe File opened for modification C:\Program Files\Orcus\Orcus.exe 4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe File created C:\Program Files\Orcus\Orcus.exe.config 4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Orcus.exedescription pid process Token: SeDebugPrivilege 956 Orcus.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Orcus.exepid process 956 Orcus.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exetaskeng.exedescription pid process target process PID 908 wrote to memory of 1044 908 4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe WindowsInput.exe PID 908 wrote to memory of 1044 908 4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe WindowsInput.exe PID 908 wrote to memory of 1044 908 4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe WindowsInput.exe PID 908 wrote to memory of 956 908 4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe Orcus.exe PID 908 wrote to memory of 956 908 4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe Orcus.exe PID 908 wrote to memory of 956 908 4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe Orcus.exe PID 272 wrote to memory of 940 272 taskeng.exe Orcus.exe PID 272 wrote to memory of 940 272 taskeng.exe Orcus.exe PID 272 wrote to memory of 940 272 taskeng.exe Orcus.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe"C:\Users\Admin\AppData\Local\Temp\4563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e.exe"1⤵
- Drops file in System32 directory
- Drops file in Program Files 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:\Program Files\Orcus\Orcus.exe"C:\Program Files\Orcus\Orcus.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\taskeng.exetaskeng.exe {6F0EC5F7-F1C9-4287-B75B-863B2326DF35} S-1-5-21-1083475884-596052423-1669053738-1000:WYZSGDWS\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
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C:\Program Files\Orcus\Orcus.exe"C:\Program Files\Orcus\Orcus.exe"2⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Program Files\Orcus\Orcus.exeFilesize
909KB
MD50766f3d3a085ff223182010af4678eef
SHA13b4c8be4d002121a9e604864fbe1897c598467c0
SHA2564563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e
SHA5127f4c05d364b4c683f7f7f054099200b21023abfb4ddea7f5f65133f6904d9fea10bfb616ab2a336893d5e31541a551730991f94e1a4610cd422a754022980254
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C:\Program Files\Orcus\Orcus.exeFilesize
909KB
MD50766f3d3a085ff223182010af4678eef
SHA13b4c8be4d002121a9e604864fbe1897c598467c0
SHA2564563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e
SHA5127f4c05d364b4c683f7f7f054099200b21023abfb4ddea7f5f65133f6904d9fea10bfb616ab2a336893d5e31541a551730991f94e1a4610cd422a754022980254
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C:\Program Files\Orcus\Orcus.exeFilesize
909KB
MD50766f3d3a085ff223182010af4678eef
SHA13b4c8be4d002121a9e604864fbe1897c598467c0
SHA2564563fa06b9e2a308b48d6e342715b02b494170e4cceafa902d21bd8dd953ff8e
SHA5127f4c05d364b4c683f7f7f054099200b21023abfb4ddea7f5f65133f6904d9fea10bfb616ab2a336893d5e31541a551730991f94e1a4610cd422a754022980254
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C:\Program Files\Orcus\Orcus.exe.configFilesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad
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C:\Windows\SysWOW64\WindowsInput.exeFilesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
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C:\Windows\SysWOW64\WindowsInput.exeFilesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
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C:\Windows\SysWOW64\WindowsInput.exe.configFilesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad
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memory/908-57-0x0000000001020000-0x0000000001032000-memory.dmpFilesize
72KB
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memory/908-55-0x0000000000AB0000-0x0000000000B0C000-memory.dmpFilesize
368KB
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memory/908-54-0x0000000001090000-0x000000000117A000-memory.dmpFilesize
936KB
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memory/908-56-0x00000000008F0000-0x00000000008FE000-memory.dmpFilesize
56KB
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memory/940-71-0x0000000000000000-mapping.dmp
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memory/956-68-0x0000000000C80000-0x0000000000CCE000-memory.dmpFilesize
312KB
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memory/956-67-0x00000000011B0000-0x000000000129A000-memory.dmpFilesize
936KB
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memory/956-69-0x00000000005E0000-0x00000000005F8000-memory.dmpFilesize
96KB
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memory/956-70-0x0000000000600000-0x0000000000610000-memory.dmpFilesize
64KB
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memory/956-63-0x0000000000000000-mapping.dmp
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memory/956-73-0x000000001AF46000-0x000000001AF65000-memory.dmpFilesize
124KB
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memory/1044-58-0x0000000000000000-mapping.dmp
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memory/1044-62-0x00000000010B0000-0x00000000010BC000-memory.dmpFilesize
48KB