Analysis
-
max time kernel
149s -
max time network
120s -
platform
windows11-21h2_x64 -
resource
win11-20231222-en -
resource tags
arch:x64arch:x86image:win11-20231222-enlocale:en-usos:windows11-21h2-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
-
Target
file.exe
-
Size
916KB
-
MD5
bdbe50403b411db0e07511e098bdb9ff
-
SHA1
5772743e950c1c647a5cab202fc3cc29039e2749
-
SHA256
a758763a7fb30398cbdab370be24c389a1927fb376772fcb31f4017ca942a284
-
SHA512
9531b3c7572f07aaac342635369732b77c1df58c262e32b21327cd2ac47afe6e3042d79a6a72e30c07b03e420cd9b47b1781bc5ed875b8d7b973b480090261f9
-
SSDEEP
24576:+cI4MROxnFD3jEsYxrZlI0AilFEvxHiH0h9:+crMiJWrZlI0AilFEvxHi
Malware Config
Extracted
orcus
obfuscated.us:8080
0133d229c4e24006957c0e4ab3a52531
-
autostart_method
Registry
-
enable_keylogger
false
-
install_path
%programfiles%\Orcus\Orcus.exe
-
reconnect_delay
10000
-
registry_keyname
Orcus
-
taskscheduler_taskname
Orcus
-
watchdog_path
AppData\OrcusWatchdog.exe
Signatures
-
Orcus main payload 4 IoCs
resource yara_rule behavioral4/files/0x000300000002a7c5-57.dat family_orcus behavioral4/files/0x000300000002a7c5-66.dat family_orcus behavioral4/files/0x000300000002a7c5-73.dat family_orcus behavioral4/files/0x000300000002a7c5-63.dat family_orcus -
Orcurs Rat Executable 5 IoCs
resource yara_rule behavioral4/files/0x000300000002a7c5-57.dat orcus behavioral4/memory/1832-69-0x0000000000F90000-0x000000000107A000-memory.dmp orcus behavioral4/files/0x000300000002a7c5-66.dat orcus behavioral4/files/0x000300000002a7c5-73.dat orcus behavioral4/files/0x000300000002a7c5-63.dat orcus -
Executes dropped EXE 6 IoCs
pid Process 1572 WindowsInput.exe 2396 WindowsInput.exe 1832 Orcus.exe 448 Orcus.exe 4408 OrcusWatchdog.exe 1820 OrcusWatchdog.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4286256601-2211319207-2237621277-1000\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.exe File opened for modification 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).
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1832 Orcus.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe 1832 Orcus.exe 1820 OrcusWatchdog.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1832 Orcus.exe Token: SeDebugPrivilege 4408 OrcusWatchdog.exe Token: SeDebugPrivilege 1820 OrcusWatchdog.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1832 Orcus.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 1832 Orcus.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1164 wrote to memory of 2780 1164 file.exe 77 PID 1164 wrote to memory of 2780 1164 file.exe 77 PID 2780 wrote to memory of 2036 2780 csc.exe 78 PID 2780 wrote to memory of 2036 2780 csc.exe 78 PID 1164 wrote to memory of 1572 1164 file.exe 79 PID 1164 wrote to memory of 1572 1164 file.exe 79 PID 1164 wrote to memory of 1832 1164 file.exe 86 PID 1164 wrote to memory of 1832 1164 file.exe 86 PID 1832 wrote to memory of 4408 1832 Orcus.exe 85 PID 1832 wrote to memory of 4408 1832 Orcus.exe 85 PID 1832 wrote to memory of 4408 1832 Orcus.exe 85 PID 4408 wrote to memory of 1820 4408 OrcusWatchdog.exe 88 PID 4408 wrote to memory of 1820 4408 OrcusWatchdog.exe 88 PID 4408 wrote to memory of 1820 4408 OrcusWatchdog.exe 88 -
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
-
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:1164 -
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\jngxey_p.cmdline"2⤵
- Suspicious use of WriteProcessMemory
PID:2780 -
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\RES4AC5.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC4AC4.tmp"3⤵PID:2036
-
-
-
C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe" --install2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:1572
-
-
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:1832
-
-
C:\Windows\SysWOW64\WindowsInput.exe"C:\Windows\SysWOW64\WindowsInput.exe"1⤵
- Executes dropped EXE
PID:2396
-
C:\Program Files\Orcus\Orcus.exe"C:\Program Files\Orcus\Orcus.exe"1⤵
- Executes dropped EXE
PID:448
-
C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe"C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files\Orcus\Orcus.exe" 18321⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4408 -
C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe"C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /watchProcess "C:\Program Files\Orcus\Orcus.exe" 18322⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1820
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
120KB
MD54821175f5c0939a6215f3e86d60b1568
SHA1521dae8ced8fd86b0352cfefebb3d1e0bdd9f3ce
SHA256c1d63a301d38230577f9840e22a27f17cc99bdde668aa73007e3acf49d328d36
SHA512bdcff2c4c13506209ab531e2f75958d0a5db92cacda7a34a8af06e1ba7200f6fe37bb211177b57d3b04172780ae870ca3053e3439eea3f07ba47d61fe7a673ad
-
Filesize
138KB
MD5ec11769d10795289443f69e65112dcc9
SHA158ad7c4d18d428ac7b63c70074014c5384484f05
SHA256afabce7550c50da87b04bd8bac53cee2beb1769e80f3ca2f2985019133a5ce57
SHA5129ba9798039f1dac2c9afa11f3f65d0888615cb7e2c5d559e51f6054e41f713bcc1970394d1662139e45957183851f88678380cc105e532f7d6868e89e36d5677
-
Filesize
115KB
MD569953e7ea09818a5fcabf3b4e1aafc81
SHA1455e94f3c1c314321fcb986156668a6de9ca2933
SHA256e7a7adfdc478c4b3bcf1beafa37c07c3a5e69ef1941eff99e1229f27c9acc1a8
SHA512033b654f6e7a84a33a107e3de6525b649c89ef2df3220d5d2fd262ed8d3efb32a06b345e7eec07d155cb106e1291c62d3e8e067fc8bf61e9dcbdd9d10345a08f
-
Filesize
68KB
MD552989421657b5c806ce886d0adf03196
SHA1013adb6c45a699bc96c5f18cf3bd0b90e038b4cc
SHA256ef4b097703a3e7323eb292ca4c63580d5ce56e1b1d87e8d4c79756b04be59cc6
SHA512d47a1cb2e5754bd16fdaba4d028c5d73068fe9336c4506d3f0e25abd2a08d0bc9758df6972e7405b57173594b9f73f755f127ba873948922b4f3fbb3201ba34d
-
Filesize
425B
MD5bb27934be8860266d478c13f2d65f45e
SHA1a69a0e171864dcac9ade1b04fc0313e6b4024ccb
SHA25685ad0d9909461517acf2e24ff116ca350e9b7000b4eefb23aa3647423c9745b4
SHA51287dd77feac509a25b30c76c119752cc25020cca9c53276c2082aef2a8c75670ef67e1e70024a63d44ae442b64f4bc464aee6691e80c525376bb7421929cfa3bb
-
Filesize
1KB
MD5cfe35af97a21f410a519176bed3bb190
SHA11a3ea97b778215e185021317812ab3acba5594df
SHA256f432933a1c4e9a2e4421a2f3702f6ad6683b5ac35c8c092d22524f3818691d49
SHA512c57591eadc9bb79eba497e481b07392d5951b9abf090b1069fb264a33e3dc72e9881c9619554dd5526e7f9c7ec04780bd12a17208385135419711250acc19a49
-
Filesize
76KB
MD56926d7e6a114bb6c05afd994d0c1b4dc
SHA138ca2cde176be7dde985791ca188efbd6bdcf2d8
SHA256b05638192154d816ddd3f67f19fbe5e53dddce905c4be117c6740cb4e5bec2ed
SHA5122bc347af6d485983dad97bf79f6c255d7a9d99d9ac7d895ec75565bd8035c0cf5da89fc62fdd0be9f63aa3feaaab76877e74e14bbef7397f3276b8c77676118b
-
Filesize
9KB
MD5913967b216326e36a08010fb70f9dba3
SHA17b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf
SHA2568d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a
SHA512c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33
-
Filesize
21KB
MD5e6fcf516d8ed8d0d4427f86e08d0d435
SHA1c7691731583ab7890086635cb7f3e4c22ca5e409
SHA2568dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337
SHA512c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e
-
Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad
-
Filesize
676B
MD50e0e79f12b421a2b9d81d8a102842ffe
SHA14df5876f5bd477f7b0dad596fb8d4343836e34cb
SHA2560c284696f54faa6d54ccb816eb7369bb0e7ef0e9bab7efb3e4392e1978ec2bba
SHA5121d41ff9c327bc34116be4c7dde139b8f2711ba8e028c3f6cea065c9070f59cabd7f22adac1a04a22531760be58d0f81f7ed24a2f4d8b1ac19a72a20bef25d9c8
-
Filesize
208KB
MD5c705d204b823c3ba754037202df38901
SHA14bca76258d5b56eb864309e2818b024eeb021f26
SHA256b724548785a5308db7719519326ab7b4c94dfe320090cf7958a1c3586978bc1b
SHA512235b38e9e60aafd619254d8fdc94cfe5cb80c1a89929196283ef880a994840e639a10036bd87246406b5644fb9a38048663bec13a2f4f05b0f53ed9a74455e65
-
Filesize
349B
MD59ccd114686243dfce30cee4a26c9a7b5
SHA10a96f4b5382979aa709558680e5ca94a49ab5139
SHA256e685b9a2f01c8f9b5bdf7ef72ba28750e90b2d7840d6f5a2abc3789ef0cf6b17
SHA51298a17677b1f882df5f1c66b0f6636b0b651768ec5a47906f127d40290c7123b945051252ebc779a1afa926a01921162c8c25ded1738ed6f8b9fb699cf8ef88b5