Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    05-02-2024 22:31

General

  • Target

    932cb9ca236e1e8c6740d9db01410778.exe

  • Size

    924KB

  • MD5

    932cb9ca236e1e8c6740d9db01410778

  • SHA1

    91c9efd93a353ba556a8b0acb6ffd8557756ad37

  • SHA256

    1a4284cd084b609aa03892894e379c630505b5e4b9ccfc278138d36668f4526f

  • SHA512

    675e9b5e1aec3c260d80cc4db6acdc1c877692541004ab0db1df245c6dc7c1d5c7742a2026ea7ef9b13f81cc73aa1ff3d98ca90eb9cf097bf04c54df75327f42

  • SSDEEP

    24576:sBB4MROxnFE3WO3XrrcI0AilFEvxHPbooR:sQMiuDXrrcI0AilFEvxHP

Malware Config

Extracted

Family

orcus

Botnet

yes

C2

192.168.56.1:10134

Mutex

1b7ce9defeb04df0a5b7ca29bd8e43e6

Attributes
  • autostart_method

    Registry

  • enable_keylogger

    true

  • install_path

    %programfiles%\Orcus\Orcus.exe

  • reconnect_delay

    10000

  • registry_keyname

    Orcus

  • taskscheduler_taskname

    Orcus

  • watchdog_path

    Temp\OrcusWatchdog.exe

Signatures

  • Orcus

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

  • Orcus main payload 1 IoCs
  • Orcurs Rat Executable 3 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 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).

  • 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\932cb9ca236e1e8c6740d9db01410778.exe
    "C:\Users\Admin\AppData\Local\Temp\932cb9ca236e1e8c6740d9db01410778.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:688
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:2712
    • 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 behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3068
      • C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe
        "C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 3068
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3044
        • C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe
          "C:\Users\Admin\AppData\Local\Temp\OrcusWatchdog.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 3068
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1964
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:2588
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {6C6F878E-97F5-46B1-AC98-8BF54378ABA5} S-1-5-21-3427588347-1492276948-3422228430-1000:QVMRJQQO\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1328
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Executes dropped EXE
      PID:2912

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Orcus\err_1b7ce9defeb04df0a5b7ca29bd8e43e6.dat

    Filesize

    1KB

    MD5

    a5c2476fd969a2f8db60b597ffec4e3e

    SHA1

    0c85bf0a1b82c00c64d315e911ed96cdb349dde8

    SHA256

    a01b60f5c96431c3f1b9e440a91a1d5defd6e0cdcbc82e3aba1466de188f8e48

    SHA512

    2c924f6ac0930593c544bc56693e6f06e93adaa48b7cb3198b510150d63350a4d5af997133381edbc2e9eadba0e874f14bb571f8e96d58009cb8da6e963d1074

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

    Filesize

    357B

    MD5

    a2b76cea3a59fa9af5ea21ff68139c98

    SHA1

    35d76475e6a54c168f536e30206578babff58274

    SHA256

    f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

    SHA512

    b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

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

    Filesize

    924KB

    MD5

    932cb9ca236e1e8c6740d9db01410778

    SHA1

    91c9efd93a353ba556a8b0acb6ffd8557756ad37

    SHA256

    1a4284cd084b609aa03892894e379c630505b5e4b9ccfc278138d36668f4526f

    SHA512

    675e9b5e1aec3c260d80cc4db6acdc1c877692541004ab0db1df245c6dc7c1d5c7742a2026ea7ef9b13f81cc73aa1ff3d98ca90eb9cf097bf04c54df75327f42

  • \Users\Admin\AppData\Local\Temp\OrcusWatchdog.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/688-1-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/688-2-0x0000000004880000-0x00000000048C0000-memory.dmp

    Filesize

    256KB

  • memory/688-7-0x00000000005A0000-0x00000000005A8000-memory.dmp

    Filesize

    32KB

  • memory/688-5-0x00000000003D0000-0x00000000003E2000-memory.dmp

    Filesize

    72KB

  • memory/688-4-0x0000000000AF0000-0x0000000000B4C000-memory.dmp

    Filesize

    368KB

  • memory/688-3-0x0000000000280000-0x000000000028E000-memory.dmp

    Filesize

    56KB

  • memory/688-6-0x0000000000590000-0x0000000000598000-memory.dmp

    Filesize

    32KB

  • memory/688-0-0x0000000001300000-0x00000000013EE000-memory.dmp

    Filesize

    952KB

  • memory/688-36-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/1964-72-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/1964-64-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2588-69-0x0000000019AA0000-0x0000000019B20000-memory.dmp

    Filesize

    512KB

  • memory/2588-26-0x0000000019AA0000-0x0000000019B20000-memory.dmp

    Filesize

    512KB

  • memory/2588-25-0x000007FEF50B0000-0x000007FEF5A9C000-memory.dmp

    Filesize

    9.9MB

  • memory/2588-24-0x0000000000380000-0x000000000038C000-memory.dmp

    Filesize

    48KB

  • memory/2588-66-0x000007FEF50B0000-0x000007FEF5A9C000-memory.dmp

    Filesize

    9.9MB

  • memory/2712-17-0x0000000000F50000-0x0000000000F5C000-memory.dmp

    Filesize

    48KB

  • memory/2712-22-0x000007FEF5AA0000-0x000007FEF648C000-memory.dmp

    Filesize

    9.9MB

  • memory/2712-18-0x000007FEF5AA0000-0x000007FEF648C000-memory.dmp

    Filesize

    9.9MB

  • memory/2712-19-0x000000001B150000-0x000000001B1D0000-memory.dmp

    Filesize

    512KB

  • memory/2912-48-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2912-67-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/2912-49-0x0000000002200000-0x0000000002240000-memory.dmp

    Filesize

    256KB

  • memory/3044-60-0x00000000009D0000-0x00000000009D8000-memory.dmp

    Filesize

    32KB

  • memory/3044-65-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/3044-61-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/3068-38-0x0000000000AD0000-0x0000000000BBE000-memory.dmp

    Filesize

    952KB

  • memory/3068-47-0x00000000047E0000-0x00000000047F0000-memory.dmp

    Filesize

    64KB

  • memory/3068-39-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/3068-52-0x00000000049A0000-0x00000000049E0000-memory.dmp

    Filesize

    256KB

  • memory/3068-45-0x0000000002180000-0x0000000002198000-memory.dmp

    Filesize

    96KB

  • memory/3068-41-0x0000000000410000-0x0000000000422000-memory.dmp

    Filesize

    72KB

  • memory/3068-44-0x0000000004740000-0x000000000478E000-memory.dmp

    Filesize

    312KB

  • memory/3068-68-0x0000000074840000-0x0000000074F2E000-memory.dmp

    Filesize

    6.9MB

  • memory/3068-70-0x00000000049A0000-0x00000000049E0000-memory.dmp

    Filesize

    256KB

  • memory/3068-71-0x00000000049A0000-0x00000000049E0000-memory.dmp

    Filesize

    256KB

  • memory/3068-40-0x00000000049A0000-0x00000000049E0000-memory.dmp

    Filesize

    256KB