Analysis

  • max time kernel
    152s
  • max time network
    100s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03/10/2022, 02:44

General

  • Target

    a5b7d942203b0a3d45038354ed4a267aa3f91850d383d07e04b0af5f9a7cc390.exe

  • Size

    252KB

  • MD5

    61dc4c99c869c2d5e470ec6c634596b9

  • SHA1

    1aa6efa6a11a8b0971f91dc4acc612c2f22eb4b6

  • SHA256

    a5b7d942203b0a3d45038354ed4a267aa3f91850d383d07e04b0af5f9a7cc390

  • SHA512

    986d508856c69d193cbc5eaaa6f8429c68114546772958e114a4920732f0049322d2fc64da6b4118551860d1962e1aa3a2be9d86bd7c161659813f99d4818ac9

  • SSDEEP

    6144:2KloVsOi3E8S7SLDvVYhlEMxqi4riPFs/eQkl:Nloex3E8S7SLDvVYhlEMxqi4riPFs/Rk

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 55 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5b7d942203b0a3d45038354ed4a267aa3f91850d383d07e04b0af5f9a7cc390.exe
    "C:\Users\Admin\AppData\Local\Temp\a5b7d942203b0a3d45038354ed4a267aa3f91850d383d07e04b0af5f9a7cc390.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Users\Admin\biaraq.exe
      "C:\Users\Admin\biaraq.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:952

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\biaraq.exe

          Filesize

          252KB

          MD5

          4ea118758d1758d7858b937f80c65eb6

          SHA1

          2c06f5749a3df795227a675ae07269d031ea7d5f

          SHA256

          5030e95ed3ce3765d490dde3d019bec3f6f3eaf4afc8ec64e5ccdb31bb93f4fb

          SHA512

          ec0fba5137ae452683e23561773c9daa14dda4c7f99b9027a35fe5207a0ffe2c1e7acfe46a96fae4a291d271cd4d9fca889e7b4616ac42cd6a1705b558ab0589

        • C:\Users\Admin\biaraq.exe

          Filesize

          252KB

          MD5

          4ea118758d1758d7858b937f80c65eb6

          SHA1

          2c06f5749a3df795227a675ae07269d031ea7d5f

          SHA256

          5030e95ed3ce3765d490dde3d019bec3f6f3eaf4afc8ec64e5ccdb31bb93f4fb

          SHA512

          ec0fba5137ae452683e23561773c9daa14dda4c7f99b9027a35fe5207a0ffe2c1e7acfe46a96fae4a291d271cd4d9fca889e7b4616ac42cd6a1705b558ab0589

        • \Users\Admin\biaraq.exe

          Filesize

          252KB

          MD5

          4ea118758d1758d7858b937f80c65eb6

          SHA1

          2c06f5749a3df795227a675ae07269d031ea7d5f

          SHA256

          5030e95ed3ce3765d490dde3d019bec3f6f3eaf4afc8ec64e5ccdb31bb93f4fb

          SHA512

          ec0fba5137ae452683e23561773c9daa14dda4c7f99b9027a35fe5207a0ffe2c1e7acfe46a96fae4a291d271cd4d9fca889e7b4616ac42cd6a1705b558ab0589

        • \Users\Admin\biaraq.exe

          Filesize

          252KB

          MD5

          4ea118758d1758d7858b937f80c65eb6

          SHA1

          2c06f5749a3df795227a675ae07269d031ea7d5f

          SHA256

          5030e95ed3ce3765d490dde3d019bec3f6f3eaf4afc8ec64e5ccdb31bb93f4fb

          SHA512

          ec0fba5137ae452683e23561773c9daa14dda4c7f99b9027a35fe5207a0ffe2c1e7acfe46a96fae4a291d271cd4d9fca889e7b4616ac42cd6a1705b558ab0589

        • memory/1808-56-0x00000000751A1000-0x00000000751A3000-memory.dmp

          Filesize

          8KB