Analysis
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max time kernel
149s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
04-02-2024 20:18
Behavioral task
behavioral1
Sample
file.bin.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
file.bin.exe
Resource
win10v2004-20231215-en
General
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Target
file.bin.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 behavioral1/files/0x0008000000016131-41.dat family_orcus behavioral1/files/0x0008000000016131-43.dat family_orcus behavioral1/files/0x0008000000016131-59.dat family_orcus -
Orcurs Rat Executable 4 IoCs
resource yara_rule behavioral1/files/0x0008000000016131-41.dat orcus behavioral1/memory/2992-45-0x00000000012C0000-0x00000000013AA000-memory.dmp orcus behavioral1/files/0x0008000000016131-43.dat orcus behavioral1/files/0x0008000000016131-59.dat orcus -
Executes dropped EXE 6 IoCs
pid Process 2264 WindowsInput.exe 2788 WindowsInput.exe 2992 Orcus.exe 2028 OrcusWatchdog.exe 1788 Orcus.exe 2012 OrcusWatchdog.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\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.InstallState WindowsInput.exe File created C:\Windows\SysWOW64\WindowsInput.exe file.bin.exe File created C:\Windows\SysWOW64\WindowsInput.exe.config file.bin.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files\Orcus\Orcus.exe file.bin.exe File opened for modification C:\Program Files\Orcus\Orcus.exe file.bin.exe File created C:\Program Files\Orcus\Orcus.exe.config file.bin.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 2012 OrcusWatchdog.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2992 Orcus.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe 2992 Orcus.exe 2012 OrcusWatchdog.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2992 Orcus.exe Token: SeDebugPrivilege 2028 OrcusWatchdog.exe Token: SeDebugPrivilege 2012 OrcusWatchdog.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2992 Orcus.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 2992 Orcus.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 2376 wrote to memory of 2668 2376 file.bin.exe 29 PID 2376 wrote to memory of 2668 2376 file.bin.exe 29 PID 2376 wrote to memory of 2668 2376 file.bin.exe 29 PID 2668 wrote to memory of 2796 2668 csc.exe 30 PID 2668 wrote to memory of 2796 2668 csc.exe 30 PID 2668 wrote to memory of 2796 2668 csc.exe 30 PID 2376 wrote to memory of 2264 2376 file.bin.exe 31 PID 2376 wrote to memory of 2264 2376 file.bin.exe 31 PID 2376 wrote to memory of 2264 2376 file.bin.exe 31 PID 2376 wrote to memory of 2992 2376 file.bin.exe 33 PID 2376 wrote to memory of 2992 2376 file.bin.exe 33 PID 2376 wrote to memory of 2992 2376 file.bin.exe 33 PID 2992 wrote to memory of 2028 2992 Orcus.exe 37 PID 2992 wrote to memory of 2028 2992 Orcus.exe 37 PID 2992 wrote to memory of 2028 2992 Orcus.exe 37 PID 2992 wrote to memory of 2028 2992 Orcus.exe 37 PID 2552 wrote to memory of 1788 2552 taskeng.exe 36 PID 2552 wrote to memory of 1788 2552 taskeng.exe 36 PID 2552 wrote to memory of 1788 2552 taskeng.exe 36 PID 2028 wrote to memory of 2012 2028 OrcusWatchdog.exe 35 PID 2028 wrote to memory of 2012 2028 OrcusWatchdog.exe 35 PID 2028 wrote to memory of 2012 2028 OrcusWatchdog.exe 35 PID 2028 wrote to memory of 2012 2028 OrcusWatchdog.exe 35 -
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.bin.exe"C:\Users\Admin\AppData\Local\Temp\file.bin.exe"1⤵
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2376 -
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\zw26fhyn.cmdline"2⤵
- Suspicious use of WriteProcessMemory
PID:2668 -
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\RES1259.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC1249.tmp"3⤵PID:2796
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:2264
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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:2992 -
C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe"C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files\Orcus\Orcus.exe" 29923⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
PID:2788
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C:\Windows\system32\taskeng.exetaskeng.exe {AD24D73C-5E14-47AC-A9A3-3296DAB5DA5B} S-1-5-21-3818056530-936619650-3554021955-1000:SFVRQGEO\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2552 -
C:\Program Files\Orcus\Orcus.exe"C:\Program Files\Orcus\Orcus.exe"2⤵
- Executes dropped EXE
PID:1788
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C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe"C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /watchProcess "C:\Program Files\Orcus\Orcus.exe" 29921⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2012
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
116KB
MD56b189fdad2da1a54c7495be53995dd31
SHA1f6a0fc07362de59dffb8c9ee78db35325b6c311c
SHA256d3c5817feb841079ed570bbd5c4dd0f74b564d18f001a648d8407d8aa9587a3f
SHA512c25669add23604cd2711acc142cbf7031f6051d14c924d087c5c547289a953de4f045a305aaf22cfec217184a42575466ddbc06fe46eda64ef01433fece4b787
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Filesize
228KB
MD53e5c7eee76cbabdfd7bae6cbb88237d6
SHA1d40e049c684bba8a1ddd89c2c73cbbf5d760a0f4
SHA25690e8884c964a34c85793e1a4180f1f87fd62e87b71595af61a345db09d75e45c
SHA51260920aa68faa58a59d246a74fe4cde8708fae7d418fce9320e22376193cdada0930bf32f7ee723126fbdbe819429d0f1e926013381b926c0452bf33260c38cff
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Filesize
31KB
MD5281e2039ac4d55a34fb7c76e7262cd2f
SHA1f9b89e896eb0aa2b9ac49fefe6592a9ddc4f3bbc
SHA256afd03aa7c79c85249e729fb9cf70eaacc1cb7cc47c8a4613856dc6cc91098992
SHA512318fdee15a205b7f14936d2254aacb8ea0347a5c7639e65facd81e30bfb18416ec0495bbdc14085b3fc139f53f926d490672f8a61aedb37675a7bd46a284b06b
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Filesize
65KB
MD5ac05d27423a85adc1622c714f2cb6184
SHA1b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA5126d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d
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Filesize
1KB
MD56e83b8ca80aae296c2bcf79a23b76055
SHA1d9b855ec317535f7360a34b73ba16e95cb4877ce
SHA256cc76a6e096e3ebb4aa4fc04daa20618b60874bba3c4f800fddc42843374ad018
SHA5127af12a258d085477ce464bab5acbfa0d89747cb7a0df89a926701b0d2610b7670998c1fe54f29907910782e955450bfc4b135f8ddbd7b43352e194a319ffeb86
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Filesize
76KB
MD5c22fd101b2617e06d514ce709423615d
SHA1b14201e1c33c7c6d10a0ffdbcbddda82fe179785
SHA25678e93cc132108bd8c498b48793e2f3687608f69beec5ec475fad488d8fb4d4c7
SHA51258c7b7fe6ec88998f694086fe033da094002faf08ba01c13fd96d3bccf0ff620d81f0186f331d75e8ff9b1da8067583011e49cbb459da78fb676c99362640ba3
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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
MD59b1f392c6400412799350d1a718fbb8c
SHA16230c588f461affeaf16b35acd8ba2d2898ddd3d
SHA2567567468ec75450cac751eb8e0770e01f1b3af5713880f3b406936478e45e2d94
SHA5129440a01ad88412dcf520e1c4c5e83d8cfa0e4e0fadf5de73b945212ea2337df29df78b7ec29c2abb4a6d148e3bd72b5665ed1cc14143984be3693f9a6ff3b74b
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Filesize
208KB
MD56011503497b1b9250a05debf9690e52c
SHA1897aea61e9bffc82d7031f1b3da12fb83efc6d82
SHA25608f42b8d57bb61bc8f9628c8a80953b06ca4149d50108083fca6dc26bdd49434
SHA512604c33e82e8b5bb5c54389c2899c81e5482a06e69db08268173a5b4574327ee5de656d312011d07e50a2e398a4c9b0cd79029013f76e05e18cf67ce5a916ffd9
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Filesize
349B
MD5176b3f0fb81f02476fac90400534436d
SHA15eb409c9455fa80766b1cc089e445af9b39cf8de
SHA256f9757e942ca4cb5fa2738980ee7ea8e2790eb359fd47c5ac9a26a281cbb16451
SHA512bc0b5e5fd7acac3452925f4b72a41c84eb1ae1a654e7e463c1be1070ec58d3b1a85397fd2a6bc973f40dcd363a38268f8e774e6b26b24d5fb48cf2ae75a078f5