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Analysis

  • max time kernel
    150s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    31/01/2025, 01:23

General

  • Target

    0364a3e0405bb8339abb28e24df1e88a1874ff283de9c81edac84e39a8b73c83.exe

  • Size

    910KB

  • MD5

    4d67c5767748dc2feefe86ab7a104a35

  • SHA1

    99bce029c8f3efe7d491b1fa8a9fb49df2873fa1

  • SHA256

    0364a3e0405bb8339abb28e24df1e88a1874ff283de9c81edac84e39a8b73c83

  • SHA512

    180b2f9ee8930e328fb9ee47d4d5a8b4f4209ea68949329c17d9027c3fb4472f174a69b5858bf49aca97b257085e12109a47b1837f33d093fdcbe364d01fc508

  • SSDEEP

    24576:INL34MROxnFf3HumxrrcI0AilFEvxHPzrooB:IWMidDrrcI0AilFEvxHP

Malware Config

Extracted

Family

orcus

C2

127.0.0.1:1268

Mutex

e917d901ad1f4140b555b1d60ce0deeb

Attributes
  • autostart_method

    Disable

  • 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

    Orcus is a Remote Access Trojan that is being sold on underground forums.

  • Orcus family
  • Orcus main payload 1 IoCs
  • Orcurs Rat Executable 3 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0364a3e0405bb8339abb28e24df1e88a1874ff283de9c81edac84e39a8b73c83.exe
    "C:\Users\Admin\AppData\Local\Temp\0364a3e0405bb8339abb28e24df1e88a1874ff283de9c81edac84e39a8b73c83.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2216
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2836
      • C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
        "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 2836
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2616
        • C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe
          "C:\Users\Admin\AppData\Roaming\OrcusWatchdog.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 2836
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3044
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {BFB1494F-1C7B-4C4F-9B9D-D8BD7E40B65A} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1044
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1916

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Orcus\Orcus.exe.config

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

  • \Program Files (x86)\Orcus\Orcus.exe

    Filesize

    910KB

    MD5

    4d67c5767748dc2feefe86ab7a104a35

    SHA1

    99bce029c8f3efe7d491b1fa8a9fb49df2873fa1

    SHA256

    0364a3e0405bb8339abb28e24df1e88a1874ff283de9c81edac84e39a8b73c83

    SHA512

    180b2f9ee8930e328fb9ee47d4d5a8b4f4209ea68949329c17d9027c3fb4472f174a69b5858bf49aca97b257085e12109a47b1837f33d093fdcbe364d01fc508

  • \Users\Admin\AppData\Roaming\OrcusWatchdog.exe

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

  • memory/2216-1-0x0000000001380000-0x000000000146A000-memory.dmp

    Filesize

    936KB

  • memory/2216-2-0x0000000000460000-0x000000000046E000-memory.dmp

    Filesize

    56KB

  • memory/2216-3-0x00000000009F0000-0x0000000000A4C000-memory.dmp

    Filesize

    368KB

  • memory/2216-4-0x00000000749E0000-0x00000000750CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2216-5-0x0000000000620000-0x0000000000632000-memory.dmp

    Filesize

    72KB

  • memory/2216-6-0x0000000000A50000-0x0000000000A58000-memory.dmp

    Filesize

    32KB

  • memory/2216-14-0x00000000749E0000-0x00000000750CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2216-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

    Filesize

    4KB

  • memory/2616-34-0x0000000001190000-0x0000000001198000-memory.dmp

    Filesize

    32KB

  • memory/2836-16-0x0000000073A3E000-0x0000000073A3F000-memory.dmp

    Filesize

    4KB

  • memory/2836-20-0x00000000004C0000-0x00000000004D2000-memory.dmp

    Filesize

    72KB

  • memory/2836-21-0x0000000000B40000-0x0000000000B8E000-memory.dmp

    Filesize

    312KB

  • memory/2836-22-0x00000000021E0000-0x00000000021F8000-memory.dmp

    Filesize

    96KB

  • memory/2836-23-0x0000000000CD0000-0x0000000000CE0000-memory.dmp

    Filesize

    64KB

  • memory/2836-19-0x0000000073A30000-0x000000007411E000-memory.dmp

    Filesize

    6.9MB

  • memory/2836-18-0x0000000000CF0000-0x0000000000DDA000-memory.dmp

    Filesize

    936KB

  • memory/2836-36-0x0000000073A3E000-0x0000000073A3F000-memory.dmp

    Filesize

    4KB

  • memory/2836-37-0x0000000073A30000-0x000000007411E000-memory.dmp

    Filesize

    6.9MB