Analysis
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max time kernel
150s -
max time network
122s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-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 4 IoCs
resource yara_rule behavioral2/files/0x00070000000231fe-66.dat family_orcus behavioral2/files/0x00070000000231fe-73.dat family_orcus behavioral2/files/0x00070000000231fe-63.dat family_orcus behavioral2/files/0x00070000000231fe-57.dat family_orcus -
Orcurs Rat Executable 5 IoCs
resource yara_rule behavioral2/files/0x00070000000231fe-66.dat orcus behavioral2/memory/4728-68-0x0000000000480000-0x000000000056A000-memory.dmp orcus behavioral2/files/0x00070000000231fe-73.dat orcus behavioral2/files/0x00070000000231fe-63.dat orcus behavioral2/files/0x00070000000231fe-57.dat orcus -
Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation file.bin.exe Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation Orcus.exe Key value queried \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation OrcusWatchdog.exe -
Executes dropped EXE 6 IoCs
pid Process 4756 WindowsInput.exe 976 WindowsInput.exe 4728 Orcus.exe 1380 Orcus.exe 2412 OrcusWatchdog.exe 4160 OrcusWatchdog.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\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 created C:\Windows\assembly\Desktop.ini file.bin.exe File opened for modification C:\Windows\assembly\Desktop.ini file.bin.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\WindowsInput.exe file.bin.exe File created C:\Windows\SysWOW64\WindowsInput.exe.config file.bin.exe File created C:\Windows\SysWOW64\WindowsInput.InstallState WindowsInput.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process 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 File created C:\Program Files\Orcus\Orcus.exe file.bin.exe -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\assembly file.bin.exe File created C:\Windows\assembly\Desktop.ini file.bin.exe File opened for modification C:\Windows\assembly\Desktop.ini 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 4728 Orcus.exe 4728 Orcus.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4160 OrcusWatchdog.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe 4728 Orcus.exe 4160 OrcusWatchdog.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4728 Orcus.exe Token: SeDebugPrivilege 2412 OrcusWatchdog.exe Token: SeDebugPrivilege 4160 OrcusWatchdog.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4728 Orcus.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 4728 Orcus.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4976 wrote to memory of 1212 4976 file.bin.exe 49 PID 4976 wrote to memory of 1212 4976 file.bin.exe 49 PID 1212 wrote to memory of 2560 1212 csc.exe 42 PID 1212 wrote to memory of 2560 1212 csc.exe 42 PID 4976 wrote to memory of 4756 4976 file.bin.exe 41 PID 4976 wrote to memory of 4756 4976 file.bin.exe 41 PID 4976 wrote to memory of 4728 4976 file.bin.exe 43 PID 4976 wrote to memory of 4728 4976 file.bin.exe 43 PID 4728 wrote to memory of 2412 4728 Orcus.exe 44 PID 4728 wrote to memory of 2412 4728 Orcus.exe 44 PID 4728 wrote to memory of 2412 4728 Orcus.exe 44 PID 2412 wrote to memory of 4160 2412 OrcusWatchdog.exe 48 PID 2412 wrote to memory of 4160 2412 OrcusWatchdog.exe 48 PID 2412 wrote to memory of 4160 2412 OrcusWatchdog.exe 48 -
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⤵
- Checks computer location settings
- 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:4976 -
C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:4756
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C:\Program Files\Orcus\Orcus.exe"C:\Program Files\Orcus\Orcus.exe"2⤵
- Checks computer location settings
- 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:4728 -
C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe"C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files\Orcus\Orcus.exe" 47283⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2412 -
C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe"C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /watchProcess "C:\Program Files\Orcus\Orcus.exe" 47284⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4160
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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\rx0_tnzf.cmdline"2⤵
- Suspicious use of WriteProcessMemory
PID:1212
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C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
PID:976
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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\RES4BCF.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC4BBE.tmp"1⤵PID:2560
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C:\Program Files\Orcus\Orcus.exe"C:\Program Files\Orcus\Orcus.exe"1⤵
- Executes dropped EXE
PID:1380
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
193KB
MD513548c85de46215be1616c25787b8fd0
SHA17e759bf01c2f6be569124c0a331d1ab850ba53c0
SHA2569c710bb79b245c372805993d02b94c823cbdf2aa1a972f37b85d8e9b14cadcae
SHA51292cabf754b9bff252f3be724d1488e0ed0a08eec5bb70ae9f284f21c1db4cd98fac1990e52fae2709bb1a8b04c40b88ab7290aae2542ebb5945e19db89a7ff04
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Filesize
248KB
MD522757c5a042451184cca0d0e212bb337
SHA11bbaf1e09b6f2573332c0729859ceb38b5b37902
SHA25684ec3ca982cdbda3ff4454be520c762dc841a16eabcfe143c369bdca90726ec4
SHA512cd5f4b871522f74f4e3330c41048aa3f3b578f2ef4c4e8ab5f9e92f1abce8330753b92da5ec18d96cfc106372a7104afe4c926112dfc2ce8bbc20b6503b4058d
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Filesize
66KB
MD5d7601356b62960846e32b42d84ed5cc8
SHA14e08f3a2d3a3bdf9fa2769c332a62c1348059445
SHA256733f563601decd2810f13bfa501225e97ff57c9882cf966c8387a5a0efd33364
SHA512df6f742f79695de1041f3a2e81020ba290b3e80c117e64e46615404fa704604615319bf0727f9f2f6e3bb0f1863a4226333a9082de1f2c94a9a9cf9a7a9cf945
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Filesize
198KB
MD580670cd4af923ee42b9fd671c2ee3710
SHA132f054f68dc037ec67e544847f7da0ab631e9c2a
SHA256121ca01585ba0b775476f0f82a18ee07497a1243b0813cc5539b96e894264e0c
SHA512c83702b5b7a7b43bff245633541ab67589530e0379a7c745808330edb3430f07d5fd92fff093d1fc62a6adaf31ef56e1508db219eff508918a3e69fa145ded21
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Filesize
425B
MD54eaca4566b22b01cd3bc115b9b0b2196
SHA1e743e0792c19f71740416e7b3c061d9f1336bf94
SHA25634ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb
SHA512bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1
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Filesize
1KB
MD590961861148ff51035b61bc270d0499d
SHA169f9c41db4a6d9a1c9c8c3222907b66bee7b50fd
SHA256a607e8bf55bc34b10bec3e5fa5db41342f8dfb4b187a5723b03951921286517d
SHA51263e9b1200fbc64ad2ade5acc3053abfa998f605c8a3cd952263a8bfe6fe0760b5f7a185e1d3d252f0c1b98c4cd3397e4069084671ba93947449860efb6be7e83
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Filesize
76KB
MD53bc8f8445e46344722bf9d2aa0a896ad
SHA1a228cf62fd49064d33720e5a87a7622ebed50f3a
SHA2563fe6dc1cf8c7cc501be5d83d6c7e85e7aea797d6d646f4311a7260a3bc2e3879
SHA5123e51f3abb0491f4f2853a1384a61181223522f0de165748cb609cd962f7e2b045547bd9d9376bbc6e35a90366330f940d6a7f13581faf8451b391012e1d39bc6
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Filesize
9KB
MD5913967b216326e36a08010fb70f9dba3
SHA17b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf
SHA2568d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a
SHA512c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33
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Filesize
5KB
MD5ee25658b21c76273d2941e1d22d46a42
SHA19a408590703de5ec603cdd9880768e1291c7e102
SHA256d6ee97f5616473b9a65a764f47c4266c7ef53c36563644494b95df19c127230d
SHA51247cfdaba8b415c843342891f612905ad14ff79aea9747b72951a1e65f5eff8cd6f4f68e37358e06969bcdc63477011b68a3287ba3b48204d1f704998af2b4551
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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
MD57cc487ee0f8a84ec59a3248184fe83fe
SHA1932b08a6805e146972be583c168ff8b7c66ed2e9
SHA2567e9634f0f083c679bd0509510a80b7b7fb86e8fed6a9e6f988f3e9a1142c5b86
SHA512bfb743238f37799806ad5268e89c2bd3d8df4e7b09aa20745f2fd65b4aaeae8c27450bd4013448c4915770ca79a5ee778d68e594701ceae36fd31b58e91440ec
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Filesize
208KB
MD5457190f349c99de86bcdbb08316bcbf8
SHA1716a01c540c0b73cea241335010ef5272a3d7800
SHA2563f9196d9e3f32ead068c40f8e38c844e9f7fc059adaf757af20ed93bfa7f1023
SHA5124a16206798269ee168abc92f78974bab8f83f2034769b5a653bbda7f6ebd41b0b18d5b78896566f54bdf312b52825cf5c512c304469972e1f554ccc104fbcb79
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Filesize
349B
MD578d6bc417ce7fad724ca814eb5a756ff
SHA1559f7b4bce918887e95d124624bc6d31d2ef9b54
SHA25681a3a0031bdc3f5296b16ee165265c32f99bf0f9733efcc287ed41de67c9578f
SHA512e1a79fbaa5135f3622a9e8d4a72966b22a73f462d087f4e142840c70430f1279c8eeba7b8b796bc5400f9f9d125122030a27686e722a8a5a9dd105ed6d0d3117