Analysis
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max time kernel
151s -
max time network
141s -
platform
windows10-1703_x64 -
resource
win10-20231215-en -
resource tags
arch:x64arch:x86image:win10-20231215-enlocale:en-usos:windows10-1703-x64system -
submitted
04-02-2024 20:17
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10-20231215-en
Behavioral task
behavioral3
Sample
file.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral4
Sample
file.exe
Resource
win11-20231222-en
General
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Target
file.exe
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Size
916KB
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MD5
bdbe50403b411db0e07511e098bdb9ff
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SHA1
5772743e950c1c647a5cab202fc3cc29039e2749
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SHA256
a758763a7fb30398cbdab370be24c389a1927fb376772fcb31f4017ca942a284
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SHA512
9531b3c7572f07aaac342635369732b77c1df58c262e32b21327cd2ac47afe6e3042d79a6a72e30c07b03e420cd9b47b1781bc5ed875b8d7b973b480090261f9
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SSDEEP
24576:+cI4MROxnFD3jEsYxrZlI0AilFEvxHiH0h9:+crMiJWrZlI0AilFEvxHi
Malware Config
Extracted
orcus
obfuscated.us:8080
0133d229c4e24006957c0e4ab3a52531
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autostart_method
Registry
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enable_keylogger
false
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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
resource yara_rule behavioral2/files/0x000700000001abfd-50.dat family_orcus behavioral2/files/0x000700000001abfd-53.dat family_orcus behavioral2/files/0x000700000001abfd-60.dat family_orcus -
Orcurs Rat Executable 4 IoCs
resource yara_rule behavioral2/files/0x000700000001abfd-50.dat orcus behavioral2/files/0x000700000001abfd-53.dat orcus behavioral2/memory/1436-54-0x0000000000AB0000-0x0000000000B9A000-memory.dmp orcus behavioral2/files/0x000700000001abfd-60.dat orcus -
Executes dropped EXE 6 IoCs
pid Process 4464 WindowsInput.exe 4492 WindowsInput.exe 1436 Orcus.exe 3960 Orcus.exe 3860 OrcusWatchdog.exe 4872 OrcusWatchdog.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1968775928-2924269989-3510977013-1000\Software\Microsoft\Windows\CurrentVersion\Run\Orcus = "\"C:\\Program Files\\Orcus\\Orcus.exe\"" Orcus.exe -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File opened for modification C:\Windows\assembly\Desktop.ini file.exe File created C:\Windows\assembly\Desktop.ini file.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\WindowsInput.exe file.exe File created C:\Windows\SysWOW64\WindowsInput.exe.config file.exe File created C:\Windows\SysWOW64\WindowsInput.InstallState WindowsInput.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files\Orcus\Orcus.exe file.exe File opened for modification C:\Program Files\Orcus\Orcus.exe file.exe File created C:\Program Files\Orcus\Orcus.exe.config file.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly file.exe File created C:\Windows\assembly\Desktop.ini file.exe File opened for modification C:\Windows\assembly\Desktop.ini file.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4872 OrcusWatchdog.exe 4872 OrcusWatchdog.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 1436 Orcus.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe 4872 OrcusWatchdog.exe 1436 Orcus.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1436 Orcus.exe Token: SeDebugPrivilege 3860 OrcusWatchdog.exe Token: SeDebugPrivilege 4872 OrcusWatchdog.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1436 Orcus.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 1436 Orcus.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 660 wrote to memory of 3500 660 file.exe 72 PID 660 wrote to memory of 3500 660 file.exe 72 PID 3500 wrote to memory of 5008 3500 csc.exe 73 PID 3500 wrote to memory of 5008 3500 csc.exe 73 PID 660 wrote to memory of 4464 660 file.exe 74 PID 660 wrote to memory of 4464 660 file.exe 74 PID 660 wrote to memory of 1436 660 file.exe 76 PID 660 wrote to memory of 1436 660 file.exe 76 PID 1436 wrote to memory of 3860 1436 Orcus.exe 78 PID 1436 wrote to memory of 3860 1436 Orcus.exe 78 PID 1436 wrote to memory of 3860 1436 Orcus.exe 78 PID 3860 wrote to memory of 4872 3860 OrcusWatchdog.exe 79 PID 3860 wrote to memory of 4872 3860 OrcusWatchdog.exe 79 PID 3860 wrote to memory of 4872 3860 OrcusWatchdog.exe 79 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Drops desktop.ini file(s)
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:660 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe"C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\zqmlgxom.cmdline"2⤵
- Suspicious use of WriteProcessMemory
PID:3500 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exeC:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES9655.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC9654.tmp"3⤵PID:5008
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:4464
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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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1436 -
C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe"C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files\Orcus\Orcus.exe" 14363⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3860 -
C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe"C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /watchProcess "C:\Program Files\Orcus\Orcus.exe" 14364⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4872
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
PID:4492
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C:\Program Files\Orcus\Orcus.exe"C:\Program Files\Orcus\Orcus.exe"1⤵
- Executes dropped EXE
PID:3960
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
701KB
MD5c7502aace3f40c45931ac7e76b5eba59
SHA10e04ae96e7de24376e32df3630708a3687c7beda
SHA256034c90614f00a8490767d6dc349d14efd522b643d0f51c82d8a6f1a03b3d8531
SHA512d9f08db3f7d55df54cd3d5ebb5a5e3f1941765b0217141427767f074def49ece761795edc43691fb3cd377b6d1ef134fe05814d4be2043816099b357ec0374bf
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Filesize
761KB
MD520234fb8621606f38d227cbbbc941154
SHA19bb285ec08f0e270905738df9065412c56c39fee
SHA256b6b68ae3f88044046899fd71fea12e86f51bfa2325fa51dab2b84d4344979171
SHA512f59e248f974c5e29ffcd6a89a70429eb1ba29a679f9e0bd325fafe028faaba11547f6d32d0abe29b6d235ff1c7459c2ef811fcfd6d45182e36034da2bd659c1f
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Filesize
443KB
MD547cfff16d366ed84f27a227ecede83dc
SHA1b5dbac6e943df19438d4626adbe178368957d34a
SHA256b3b1d91f5b80f95c744a30568df5017c3a4d218821711e3104755f8258f8b2ef
SHA512134e938c15213f9453472472f695c420c1338e1ecf96d107087eb4154b6de83f4244588ad56cca85afec642c5cba86fe0bd3feb41136a7c457dd43b5c543376d
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Filesize
425B
MD5605f809fab8c19729d39d075f7ffdb53
SHA1c546f877c9bd53563174a90312a8337fdfc5fdd9
SHA2566904d540649e76c55f99530b81be17e099184bb4cad415aa9b9b39cc3677f556
SHA51282cc12c3186ae23884b8d5c104638c8206272c4389ade56b926dfc1d437b03888159b3c790b188b54d277a262e731927e703e680ea642e1417faee27443fd5b3
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Filesize
1KB
MD56b9b6e893ef5997716b26d4d3dd2a446
SHA1a321ac34b6a8fefe3d5cb58d7f88057f5a460678
SHA256ea065f56d442d3d0ea6461d5bc613689bbbd9d8afeac68688696a6e2e74e80ad
SHA512d341c7902f106fd78b7b08b01dafcd6bf2049532a5a2f83ea3f233df1d9dde796a5f005e9298757b7c1a1905de8662516431e91027de12c2211786145b4662e2
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Filesize
76KB
MD5d56b34c0041ff7e8eb404a315c08edd7
SHA1ca1c5cf68404b0d4f769aecadf2f4909d1711a04
SHA256edae22a41e4ce178a349a1fe0d03901c9a63318f8d0c923112d50ce21005eba9
SHA5129dd4483dc00c57f01375f515b7572a942bad0d6e5c31ba89977c19e9a2b3a3fc20e8471466855a054cd949102c276c755f5e3b0c347b5356574ec077f5a9018f
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Filesize
9KB
MD5913967b216326e36a08010fb70f9dba3
SHA17b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf
SHA2568d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a
SHA512c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33
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Filesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
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Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad
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Filesize
676B
MD501bff42bacd9b7c4348b3c0a067c4b9a
SHA14f8f155415331821a9878f2af5f128e1bc955e3f
SHA256887bf9bc3539f559c6496e1a6cf12c9597543569ab0fdca3463cf208c03f16fb
SHA512d504665b698741a4180b0f8a69269ee17a0808731e9af7bfee7d61668a8c68e62c33e7f2c09456b669d2db439f447c5f333e817ce28c23457e4aafe100b4977a
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Filesize
208KB
MD59966daafc7e31eed4a3f9a05d70dcd02
SHA106951b3ca40d683f6b56f7dd23d8d258cd82e8f0
SHA256e6b85665c5f5331b88487221c841d35753d027d781b10f7857177dcc39f332cb
SHA512e27a2e262c35669661dde1af2b78a32992aa42e5d57ab519b53140c0b168d898981228a181d2824368100744e9273b1d51864adca66dd8ddeaea94bba6c3a771
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Filesize
349B
MD51b86eae15ea283efb42c79eff5b76756
SHA192c4e1ffca98dad3746073ad89f6057fabd54f03
SHA256378e463ff7fcf7a95fe24fe35fb856dffe10a5ec909d16d0ec1e573c5d379088
SHA512d228159dc9b5489b4471d8d09e72d1fd251d643285c65ef5e33c5df204efd94a25889d1194af09d38e22e4e649747ba1bc3e69c37ba0d33beb9aece45a3daa83