Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 00:34

General

  • Target

    21dfba7355a99cfcb015d6ec0bc1173a.exe

  • Size

    136KB

  • MD5

    21dfba7355a99cfcb015d6ec0bc1173a

  • SHA1

    bfa74a08340eb5cf7a47e798584ac0296903258c

  • SHA256

    0e92c251943d3c2c643bda9dcb73624a7f1ced1a71cae442d32375b01727f6a8

  • SHA512

    c8c075236c9405750c0af96c9c46c8346d8a4091eaa716b032dde7e9623e06aac92862d54309eb6da18d2810f967fd50b1dcfe2f216833f9ce3f262de2876c29

  • SSDEEP

    3072:BmB17wjBfQn7WbIqH0ybZBiOllyEmcP82+aVdOt66VGegmK:BmzyQn7WbIqH0ybZBiOllyE5D+aVkjse

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 51 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21dfba7355a99cfcb015d6ec0bc1173a.exe
    "C:\Users\Admin\AppData\Local\Temp\21dfba7355a99cfcb015d6ec0bc1173a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Users\Admin\youari.exe
      "C:\Users\Admin\youari.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2156

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\youari.exe

          Filesize

          136KB

          MD5

          18224ff484d0379d81d50e62241681d8

          SHA1

          f8beb566cce581ef094cac82d2aaee57b533d8be

          SHA256

          13b934e0639852d7db862e6d0ed94331b056f899ebb1f47a6b1887742f6bd302

          SHA512

          ae0ad5fc401f9a8b2b53ed93932d563cac43c29e67db6b81bddb88442c4702345fc28385b656670107b4f9d7ef4dbc9cc40b67ddc97b1f09783e165ede1d06c1