Analysis

  • max time kernel
    390s
  • max time network
    388s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    08-02-2024 13:41

General

  • Target

    rat.exe

  • Size

    1.8MB

  • MD5

    8ad0919a0ee7cba7298d009d4b58e3ff

  • SHA1

    f75c3c9f06aa11b72db556d259b40a11d685ac11

  • SHA256

    798159895032344c910b1d937ebda40fafeb2c657e3039c49c0999d77a73f75f

  • SHA512

    23d50fc6006cb610a35cacdf29fee5a074993eb3b3e3f3746d78e9c621fb41c7ac0dda24fd4be4412b3a9915fd93cd1f46fa6f7a476bf53a8cee370939a2a064

  • SSDEEP

    49152:kJuHrhm4SEHZF6qXyoU7Ej44FoGl3RRZr7NoazWVgUIRFSO1SSQ:CMrh3JHZF6VoUoj4+7fNo

Malware Config

Signatures

  • Orcus

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

  • Orcus main payload 1 IoCs
  • Orcurs Rat Executable 4 IoCs
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rat.exe
    "C:\Users\Admin\AppData\Local\Temp\rat.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:2524
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2556
      • C:\Users\Admin\AppData\Roaming\Sys322.exe
        "C:\Users\Admin\AppData\Roaming\Sys322.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 2556 /protectFile
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2316
        • C:\Users\Admin\AppData\Roaming\Sys322.exe
          "C:\Users\Admin\AppData\Roaming\Sys322.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 2556 "/protectFile"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:952
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:2596
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {2FB6664F-2D4B-4D92-BA46-02916322D268} S-1-5-21-3470981204-343661084-3367201002-1000:GLTGRJAG\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3020
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:1736
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:1732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Sys322.exe

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

  • C:\Windows\SysWOW64\WindowsInput.exe.config

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

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

    Filesize

    1.8MB

    MD5

    8ad0919a0ee7cba7298d009d4b58e3ff

    SHA1

    f75c3c9f06aa11b72db556d259b40a11d685ac11

    SHA256

    798159895032344c910b1d937ebda40fafeb2c657e3039c49c0999d77a73f75f

    SHA512

    23d50fc6006cb610a35cacdf29fee5a074993eb3b3e3f3746d78e9c621fb41c7ac0dda24fd4be4412b3a9915fd93cd1f46fa6f7a476bf53a8cee370939a2a064

  • \Windows\SysWOW64\WindowsInput.exe

    Filesize

    21KB

    MD5

    e6fcf516d8ed8d0d4427f86e08d0d435

    SHA1

    c7691731583ab7890086635cb7f3e4c22ca5e409

    SHA256

    8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

    SHA512

    c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

  • memory/952-59-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/952-78-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1732-82-0x0000000000700000-0x0000000000740000-memory.dmp

    Filesize

    256KB

  • memory/1732-80-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1732-83-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1736-62-0x0000000000470000-0x00000000004B0000-memory.dmp

    Filesize

    256KB

  • memory/1736-75-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/1736-48-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2020-6-0x0000000000E70000-0x0000000000ECC000-memory.dmp

    Filesize

    368KB

  • memory/2020-0-0x0000000000FB0000-0x0000000001308000-memory.dmp

    Filesize

    3.3MB

  • memory/2020-7-0x00000000003F0000-0x0000000000402000-memory.dmp

    Filesize

    72KB

  • memory/2020-5-0x0000000000340000-0x000000000034E000-memory.dmp

    Filesize

    56KB

  • memory/2020-4-0x0000000000D10000-0x0000000000D7E000-memory.dmp

    Filesize

    440KB

  • memory/2020-3-0x0000000005460000-0x00000000054A0000-memory.dmp

    Filesize

    256KB

  • memory/2020-38-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2020-2-0x0000000000210000-0x0000000000211000-memory.dmp

    Filesize

    4KB

  • memory/2020-1-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2316-60-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2316-56-0x0000000000820000-0x0000000000828000-memory.dmp

    Filesize

    32KB

  • memory/2316-57-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2524-16-0x0000000000880000-0x000000000088C000-memory.dmp

    Filesize

    48KB

  • memory/2524-21-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp

    Filesize

    9.9MB

  • memory/2524-17-0x000007FEF5EA0000-0x000007FEF688C000-memory.dmp

    Filesize

    9.9MB

  • memory/2524-18-0x000000001A680000-0x000000001A700000-memory.dmp

    Filesize

    512KB

  • memory/2556-35-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2556-40-0x0000000005140000-0x0000000005180000-memory.dmp

    Filesize

    256KB

  • memory/2556-37-0x00000000010D0000-0x0000000001428000-memory.dmp

    Filesize

    3.3MB

  • memory/2556-44-0x0000000001030000-0x0000000001040000-memory.dmp

    Filesize

    64KB

  • memory/2556-77-0x0000000074C10000-0x00000000752FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2556-41-0x00000000004B0000-0x00000000004C2000-memory.dmp

    Filesize

    72KB

  • memory/2556-42-0x0000000000DB0000-0x0000000000DFE000-memory.dmp

    Filesize

    312KB

  • memory/2556-43-0x0000000000FB0000-0x0000000000FC8000-memory.dmp

    Filesize

    96KB

  • memory/2596-25-0x0000000019B20000-0x0000000019BA0000-memory.dmp

    Filesize

    512KB

  • memory/2596-23-0x0000000000900000-0x000000000090C000-memory.dmp

    Filesize

    48KB

  • memory/2596-76-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp

    Filesize

    9.9MB

  • memory/2596-24-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp

    Filesize

    9.9MB