Analysis

  • max time kernel
    56s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    08-02-2024 13:36

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 3 IoCs
  • Orcurs Rat Executable 5 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 6 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 behavior: GetForegroundWindowSpam 1 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:2024
    • C:\Windows\SysWOW64\WindowsInput.exe
      "C:\Windows\SysWOW64\WindowsInput.exe" --install
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      PID:2876
    • 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 behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2584
      • C:\Users\Admin\AppData\Roaming\Sys322.exe
        "C:\Users\Admin\AppData\Roaming\Sys322.exe" /launchSelfAndExit "C:\Program Files (x86)\Orcus\Orcus.exe" 2584 /protectFile
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2984
        • C:\Users\Admin\AppData\Roaming\Sys322.exe
          "C:\Users\Admin\AppData\Roaming\Sys322.exe" /watchProcess "C:\Program Files (x86)\Orcus\Orcus.exe" 2584 "/protectFile"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1040
      • C:\Windows\SysWOW64\WindowsInput.exe
        "C:\Windows\SysWOW64\WindowsInput.exe" --uninstall
        3⤵
        • Executes dropped EXE
        PID:2440
  • C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe"
    1⤵
    • Executes dropped EXE
    PID:2624
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {9C398233-D4B1-4920-8ABC-3D7318E3E3DE} S-1-5-21-3427588347-1492276948-3422228430-1000:QVMRJQQO\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:312
    • C:\Program Files (x86)\Orcus\Orcus.exe
      "C:\Program Files (x86)\Orcus\Orcus.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1.2MB

    MD5

    9e1fdeb0ff2bcf2afca7e7da091a44ba

    SHA1

    8329b70558a79140c190c325ff1990e910c1dea9

    SHA256

    2aeed035d7aa468be500300f8440fcafd8f3fa6cd8f5c829a6cb7e393f2e6f66

    SHA512

    ab97db50c7c5ecd30c4fd41a43e7ff1e879f078563e36b0086affe8318a2de90d6e48cc6c757ac996a8c0fea43da7adc954d9be97a37eab06c7309a62fa86027

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

    Filesize

    1.4MB

    MD5

    f72483cf4a86e3307366f6ae8caffcdc

    SHA1

    810bcddf592e49c110d8526d8144a34680e32f71

    SHA256

    e53589e8d842bc7a45ece8333903c72cbdfd334328262317556a64d55d1ec493

    SHA512

    a95e4bd523ae85a9ae5cb76d2d2bf31965c5ed17b36876d64294cffa2736b43a6aaf9f902120ab68a4c41047058e15e37274061a51fa0d63c4c0c98e2b58768a

  • C:\Users\Admin\AppData\Local\Temp\Cab7ED3.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Windows\SysWOW64\WindowsInput.InstallState

    Filesize

    7KB

    MD5

    362ce475f5d1e84641bad999c16727a0

    SHA1

    6b613c73acb58d259c6379bd820cca6f785cc812

    SHA256

    1f78f1056761c6ebd8965ed2c06295bafa704b253aff56c492b93151ab642899

    SHA512

    7630e1629cf4abecd9d3ddea58227b232d5c775cb480967762a6a6466be872e1d57123b08a6179fe1cfbc09403117d0f81bc13724f259a1d25c1325f1eac645b

  • 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

  • \Users\Admin\AppData\Roaming\Sys322.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/580-48-0x0000000007090000-0x00000000070D0000-memory.dmp

    Filesize

    256KB

  • memory/580-43-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB

  • memory/580-77-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB

  • memory/1040-82-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB

  • memory/1040-59-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB

  • memory/2024-7-0x0000000000700000-0x0000000000712000-memory.dmp

    Filesize

    72KB

  • memory/2024-0-0x00000000003A0000-0x00000000006F8000-memory.dmp

    Filesize

    3.3MB

  • memory/2024-1-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB

  • memory/2024-5-0x0000000000290000-0x000000000029E000-memory.dmp

    Filesize

    56KB

  • memory/2024-2-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/2024-6-0x0000000000750000-0x00000000007AC000-memory.dmp

    Filesize

    368KB

  • memory/2024-34-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB

  • memory/2024-4-0x0000000004490000-0x00000000044FE000-memory.dmp

    Filesize

    440KB

  • memory/2024-3-0x00000000096D0000-0x0000000009710000-memory.dmp

    Filesize

    256KB

  • memory/2440-86-0x000007FEF57F0000-0x000007FEF61DC000-memory.dmp

    Filesize

    9.9MB

  • memory/2440-87-0x00000000004A0000-0x0000000000520000-memory.dmp

    Filesize

    512KB

  • memory/2584-36-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB

  • memory/2584-78-0x0000000000AB0000-0x0000000000AF0000-memory.dmp

    Filesize

    256KB

  • memory/2584-44-0x0000000004A10000-0x0000000004A20000-memory.dmp

    Filesize

    64KB

  • memory/2584-41-0x00000000049F0000-0x0000000004A08000-memory.dmp

    Filesize

    96KB

  • memory/2584-40-0x0000000004FE0000-0x000000000502E000-memory.dmp

    Filesize

    312KB

  • memory/2584-80-0x0000000000AB0000-0x0000000000AF0000-memory.dmp

    Filesize

    256KB

  • memory/2584-79-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB

  • memory/2584-39-0x00000000009C0000-0x00000000009D2000-memory.dmp

    Filesize

    72KB

  • memory/2584-38-0x0000000000AB0000-0x0000000000AF0000-memory.dmp

    Filesize

    256KB

  • memory/2584-83-0x0000000000AB0000-0x0000000000AF0000-memory.dmp

    Filesize

    256KB

  • memory/2584-35-0x0000000001190000-0x00000000014E8000-memory.dmp

    Filesize

    3.3MB

  • memory/2624-76-0x000007FEF57F0000-0x000007FEF61DC000-memory.dmp

    Filesize

    9.9MB

  • memory/2624-23-0x000007FEF57F0000-0x000007FEF61DC000-memory.dmp

    Filesize

    9.9MB

  • memory/2876-21-0x000007FEF61E0000-0x000007FEF6BCC000-memory.dmp

    Filesize

    9.9MB

  • memory/2876-18-0x000000001B250000-0x000000001B2D0000-memory.dmp

    Filesize

    512KB

  • memory/2876-17-0x000007FEF61E0000-0x000007FEF6BCC000-memory.dmp

    Filesize

    9.9MB

  • memory/2876-16-0x00000000013A0000-0x00000000013AC000-memory.dmp

    Filesize

    48KB

  • memory/2984-58-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB

  • memory/2984-56-0x0000000000A40000-0x0000000000A48000-memory.dmp

    Filesize

    32KB

  • memory/2984-81-0x0000000074B90000-0x000000007527E000-memory.dmp

    Filesize

    6.9MB