Analysis
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max time kernel
150s -
max time network
131s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
04-02-2024 20:19
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20231215-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 1 IoCs
resource yara_rule behavioral1/files/0x0008000000016fe9-42.dat family_orcus -
Orcurs Rat Executable 2 IoCs
resource yara_rule behavioral1/files/0x0008000000016fe9-42.dat orcus behavioral1/memory/296-45-0x0000000000240000-0x000000000032A000-memory.dmp orcus -
Executes dropped EXE 6 IoCs
pid Process 2816 WindowsInput.exe 2564 WindowsInput.exe 296 Orcus.exe 924 Orcus.exe 2132 OrcusWatchdog.exe 1748 OrcusWatchdog.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\Orcus = "\"C:\\Program Files\\Orcus\\Orcus.exe\"" Orcus.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 -
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 296 Orcus.exe 296 Orcus.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 1748 OrcusWatchdog.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 1748 OrcusWatchdog.exe 296 Orcus.exe 1748 OrcusWatchdog.exe 296 Orcus.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 296 Orcus.exe Token: SeDebugPrivilege 2132 OrcusWatchdog.exe Token: SeDebugPrivilege 1748 OrcusWatchdog.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 296 Orcus.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 296 Orcus.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 2364 wrote to memory of 2456 2364 file.exe 28 PID 2364 wrote to memory of 2456 2364 file.exe 28 PID 2364 wrote to memory of 2456 2364 file.exe 28 PID 2456 wrote to memory of 2768 2456 csc.exe 30 PID 2456 wrote to memory of 2768 2456 csc.exe 30 PID 2456 wrote to memory of 2768 2456 csc.exe 30 PID 2364 wrote to memory of 2816 2364 file.exe 31 PID 2364 wrote to memory of 2816 2364 file.exe 31 PID 2364 wrote to memory of 2816 2364 file.exe 31 PID 2364 wrote to memory of 296 2364 file.exe 33 PID 2364 wrote to memory of 296 2364 file.exe 33 PID 2364 wrote to memory of 296 2364 file.exe 33 PID 872 wrote to memory of 924 872 taskeng.exe 35 PID 872 wrote to memory of 924 872 taskeng.exe 35 PID 872 wrote to memory of 924 872 taskeng.exe 35 PID 296 wrote to memory of 2132 296 Orcus.exe 36 PID 296 wrote to memory of 2132 296 Orcus.exe 36 PID 296 wrote to memory of 2132 296 Orcus.exe 36 PID 296 wrote to memory of 2132 296 Orcus.exe 36 PID 2132 wrote to memory of 1748 2132 OrcusWatchdog.exe 37 PID 2132 wrote to memory of 1748 2132 OrcusWatchdog.exe 37 PID 2132 wrote to memory of 1748 2132 OrcusWatchdog.exe 37 PID 2132 wrote to memory of 1748 2132 OrcusWatchdog.exe 37 -
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 file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2364 -
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\z0vlj3gd.cmdline"2⤵
- Suspicious use of WriteProcessMemory
PID:2456 -
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\RES5948.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC5947.tmp"3⤵PID:2768
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:2816
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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:296 -
C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe"C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files\Orcus\Orcus.exe" 2963⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2132 -
C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe"C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /watchProcess "C:\Program Files\Orcus\Orcus.exe" 2964⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1748
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
PID:2564
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C:\Windows\system32\taskeng.exetaskeng.exe {7B767EDB-B6F5-4086-98CC-50195EA5C5B1} S-1-5-21-1603059206-2004189698-4139800220-1000:AILVMYUM\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:872 -
C:\Program Files\Orcus\Orcus.exe"C:\Program Files\Orcus\Orcus.exe"2⤵
- Executes dropped EXE
PID:924
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
916KB
MD5bdbe50403b411db0e07511e098bdb9ff
SHA15772743e950c1c647a5cab202fc3cc29039e2749
SHA256a758763a7fb30398cbdab370be24c389a1927fb376772fcb31f4017ca942a284
SHA5129531b3c7572f07aaac342635369732b77c1df58c262e32b21327cd2ac47afe6e3042d79a6a72e30c07b03e420cd9b47b1781bc5ed875b8d7b973b480090261f9
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
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Filesize
1KB
MD54ca48ec15cad2b1351e7502294680031
SHA1176cccb9d91c98805071414e225970f91d45933d
SHA256e708810275fcc76197d8fd4acaf10f9b3036cc9e715f4996b96715ad47604ffc
SHA512da1df85fbed50068845169626342c9d88248b032bc7b63ecd160e4651fb2bcf26a6a3b5a28351b5bf9557dddff9005a2ad879e7f6d74f4ee0575c4ff4f4dd7d7
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Filesize
171KB
MD59c0c641c06238516f27941aa1166d427
SHA164cd549fb8cf014fcd9312aa7a5b023847b6c977
SHA2564276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f
SHA512936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06
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Filesize
76KB
MD522a27e4db7d0afb5c68fbf1cd4275994
SHA1d235384876c2d800a608e4491e7c9edc87bf8bbd
SHA256a64e035fb6839c36065fd9d080cae92f0f85b1df812e9db5cb2956ae7fbf97d5
SHA512fd8586e49f995ad4fdf8f891ce7f19a7aea257daea9f98c1f0855f50dc5d20f9d67159ada0c953716907cba70587027272abb30b551504d248345157569640c7
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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
MD5a1afd0923b6f8a51e0a7b997a8618afb
SHA16c0fb68ba0d080795dceaf303a357b09c2c790db
SHA25687d7b9d56164923d860e2ead6ebff88404f460b0304d9c78cf4ae7fac1202b96
SHA512f071b9f8a43079e387a3755acb7c5be330f46f5a13d3439dee49a49388cfd8105af4d2e238518b2eb0304f8cd3afe7db8428940a2f453be4007ce32ca1396637
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Filesize
208KB
MD5250321226bbc2a616d91e1c82cb4ab2b
SHA17cffd0b2e9c842865d8961386ab8fcfac8d04173
SHA256ef2707f83a0c0927cfd46b115641b9cae52a41123e4826515b9eeb561785218d
SHA512bda59ca04cdf254f837f2cec6da55eff5c3d2af00da66537b9ebaa3601c502ae63772f082fd12663b63d537d2e03efe87a3b5746ef25e842aaf1c7d88245b4e1
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Filesize
349B
MD59a4e103ed2d9c1c2f67e05c52f1b78df
SHA175ca8b012011866c75a8eb05c277f5fb1588231a
SHA2567cc21d92fa70047851329ba616cb694573d3b8791be38016bc60ec59b4e380f2
SHA512b93b39cc1eae6f0af55fddee1221ff0d4769a34913b4d0db331836bcbb6f787f1ae567a6aae2279208e756f2477e688996136803a9e1c75ad4b934076068f1ea