Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/03/2024, 11:00

General

  • Target

    b89366ee09ed61d73587eb9d1959c3b3.dll

  • Size

    19KB

  • MD5

    b89366ee09ed61d73587eb9d1959c3b3

  • SHA1

    df943e4394654f2f0cfebb19aff0e84c36c6e4c3

  • SHA256

    1f18a88e9bde7482171ee1d843c956c0162cba0b5c1fd289841807c350c53d56

  • SHA512

    504f6678eaee6bd91103a6d121b73afeefa294e0d1c41062e42b243ef470b0ace4695962528e1b2c6170c71adc0dfa45e5f8d6b1c08e868f82d56ade0bbfbe6c

  • SSDEEP

    384:ZLyGJUupwJF/zy/af7L4kt1vLexwjqAaGpeMG4xIhNy0gt:ZLb6upwJFLxf7Lv7OpGpDNAg

Score
5/10

Malware Config

Signatures

  • Drops file in System32 directory 2 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b89366ee09ed61d73587eb9d1959c3b3.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3884
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b89366ee09ed61d73587eb9d1959c3b3.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      PID:4984
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 652
        3⤵
        • Program crash
        PID:3556
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4984 -ip 4984
    1⤵
      PID:3436

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/4984-0-0x0000000010000000-0x0000000010010000-memory.dmp

      Filesize

      64KB

    • memory/4984-1-0x0000000000F20000-0x0000000000F22000-memory.dmp

      Filesize

      8KB

    • memory/4984-3-0x0000000010000000-0x0000000010010000-memory.dmp

      Filesize

      64KB