Analysis

  • max time kernel
    97s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/05/2024, 00:45

General

  • Target

    2024-05-09_11784014a6dded01d4f788c62c497462_bkransomware.exe

  • Size

    735KB

  • MD5

    11784014a6dded01d4f788c62c497462

  • SHA1

    b0c1bf5f33d6c77fdb9a2b2799798bca61bb38cb

  • SHA256

    a6fe598c93859bf59f326df3179646e5f726d7b733f86e61ec837ba94b8008a9

  • SHA512

    7296947eb245fc0c959339b4655d3946c705d49cf9fd099704a9d22d85e3da8e0d595176e7c1e26f8c4a5859454519fd95981b7f1bc78d78404994ac58581da3

  • SSDEEP

    12288:yxT5HJMAUpRlsEWgd/F71FTKu/BH/jxarzv1qYo:8lHJ4pZR7CuZfErb1q

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in System32 directory 58 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 62 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-09_11784014a6dded01d4f788c62c497462_bkransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-09_11784014a6dded01d4f788c62c497462_bkransomware.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3080
    • C:\Users\Admin\AppData\Local\Temp\3587.tmp
      C:\Users\Admin\AppData\Local\Temp\3587.tmp
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      PID:3348

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\3587.tmp

          Filesize

          145KB

          MD5

          c610e7ccd6859872c585b2a85d7dc992

          SHA1

          362b3d4b72e3add687c209c79b500b7c6a246d46

          SHA256

          14063fc61dc71b9881d75e93a587c27a6daf8779ff5255a24a042beace541041

          SHA512

          8570aad2ae8b5dcba00fc5ebf3dc0ea117e96cc88a83febd820c5811bf617a6431c1367b3eb88332f43f80b30ebe2c298c22dcc44860a075f7b41bf350236666

        • memory/3080-1-0x0000000002120000-0x0000000002168000-memory.dmp

          Filesize

          288KB