Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    19-11-2024 01:24

General

  • Target

    cafaf51caed0d57ee3b70beb26ca7a1ad689b7ca08066c31b70e93f740213e24.exe

  • Size

    992KB

  • MD5

    e8096839712127e687d0df6ea0ee205f

  • SHA1

    a8bc4c9692f9d081ebc55f35f6560b17c776cb06

  • SHA256

    cafaf51caed0d57ee3b70beb26ca7a1ad689b7ca08066c31b70e93f740213e24

  • SHA512

    c5ee0105f17af18929f86a64297279554f756c9bc777c29b5393e8f46e2876eb6e1c087e3d4e4845c39a393f4e4660c45f59c5f0b4daeb1da0ed4ade1ec17cc2

  • SSDEEP

    24576:nQA4MROxnFE31O3XrrcI0AilFEvxHPlfHaooM:n2Miu6XrrcI0AilFEvxHPlf

Malware Config

Extracted

Family

orcus

Botnet

Novie

C2

192.168.127.128:5765

Mutex

b299e3d18fe04161815341cb7e50270b

Attributes
  • autostart_method

    TaskScheduler

  • enable_keylogger

    true

  • install_path

    %programfiles%\Orcus\Orcus.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    WindowsDefender

  • watchdog_path

    AppData\MicrosoftDefender.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 6 IoCs
  • Loads dropped DLL 3 IoCs
  • Drops file in System32 directory 3 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cafaf51caed0d57ee3b70beb26ca7a1ad689b7ca08066c31b70e93f740213e24.exe
    "C:\Users\Admin\AppData\Local\Temp\cafaf51caed0d57ee3b70beb26ca7a1ad689b7ca08066c31b70e93f740213e24.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:432
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:2948
    • 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 SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2684
      • C:\Users\Admin\AppData\Roaming\MicrosoftDefender.exe
        "C:\Users\Admin\AppData\Roaming\MicrosoftDefender.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 2684 /protectFile
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2588
        • C:\Users\Admin\AppData\Roaming\MicrosoftDefender.exe
          "C:\Users\Admin\AppData\Roaming\MicrosoftDefender.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 2684 "/protectFile"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1476
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:2852
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {346BED5C-23C7-45D2-B8EF-A6B9C582579F} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2056
    • 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:3060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Center\err_b299e3d18fe04161815341cb7e50270b.dat

    Filesize

    1KB

    MD5

    b9198d6386977760e588b0b9c43309e7

    SHA1

    437d212e02bb400ecc8719ed2e516354f67a80ea

    SHA256

    44ac7b9b9744d92cb87a379c311a26ced5c1c8c4e2db5d6295331f86be661792

    SHA512

    17edbf6183d2a0d1a46895025cf86dca7492adcc47ba704a7d81d9bb8c3b44f499047ce49180eff9e7af80dba453cd699056106644b90577e7205c0c4dd44da0

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

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

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

    Filesize

    992KB

    MD5

    e8096839712127e687d0df6ea0ee205f

    SHA1

    a8bc4c9692f9d081ebc55f35f6560b17c776cb06

    SHA256

    cafaf51caed0d57ee3b70beb26ca7a1ad689b7ca08066c31b70e93f740213e24

    SHA512

    c5ee0105f17af18929f86a64297279554f756c9bc777c29b5393e8f46e2876eb6e1c087e3d4e4845c39a393f4e4660c45f59c5f0b4daeb1da0ed4ade1ec17cc2

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

    Filesize

    9KB

    MD5

    913967b216326e36a08010fb70f9dba3

    SHA1

    7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

    SHA256

    8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

    SHA512

    c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

  • \Windows\SysWOW64\WindowsInput.exe

    Filesize

    21KB

    MD5

    e6fcf516d8ed8d0d4427f86e08d0d435

    SHA1

    c7691731583ab7890086635cb7f3e4c22ca5e409

    SHA256

    8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

    SHA512

    c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

  • memory/432-33-0x00000000749A0000-0x000000007508E000-memory.dmp

    Filesize

    6.9MB

  • memory/432-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

    Filesize

    4KB

  • memory/432-7-0x0000000000C20000-0x0000000000C28000-memory.dmp

    Filesize

    32KB

  • memory/432-5-0x0000000000820000-0x0000000000832000-memory.dmp

    Filesize

    72KB

  • memory/432-4-0x0000000000BC0000-0x0000000000C1C000-memory.dmp

    Filesize

    368KB

  • memory/432-1-0x0000000001280000-0x000000000137E000-memory.dmp

    Filesize

    1016KB

  • memory/432-6-0x0000000000AF0000-0x0000000000AF8000-memory.dmp

    Filesize

    32KB

  • memory/432-3-0x00000000749A0000-0x000000007508E000-memory.dmp

    Filesize

    6.9MB

  • memory/432-2-0x00000000004B0000-0x00000000004BE000-memory.dmp

    Filesize

    56KB

  • memory/2588-50-0x0000000000300000-0x0000000000308000-memory.dmp

    Filesize

    32KB

  • memory/2684-38-0x0000000004E80000-0x0000000004E98000-memory.dmp

    Filesize

    96KB

  • memory/2684-34-0x00000000013E0000-0x00000000014DE000-memory.dmp

    Filesize

    1016KB

  • memory/2684-37-0x00000000010E0000-0x000000000112E000-memory.dmp

    Filesize

    312KB

  • memory/2684-39-0x0000000004F20000-0x0000000004F30000-memory.dmp

    Filesize

    64KB

  • memory/2948-19-0x000007FEF65A0000-0x000007FEF6F8C000-memory.dmp

    Filesize

    9.9MB

  • memory/2948-18-0x0000000001300000-0x000000000130C000-memory.dmp

    Filesize

    48KB

  • memory/2948-16-0x000007FEF65A3000-0x000007FEF65A4000-memory.dmp

    Filesize

    4KB

  • memory/2948-52-0x000007FEF65A0000-0x000007FEF6F8C000-memory.dmp

    Filesize

    9.9MB