Analysis

  • max time kernel
    126s
  • max time network
    160s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    10-09-2021 21:28

General

  • Target

    libstdc++-6.dll

  • Size

    647KB

  • MD5

    5e279950775baae5fea04d2cc4526bcc

  • SHA1

    8aef1e10031c3629512c43dd8b0b5d9060878453

  • SHA256

    97de47068327bb822b33c7106f9cbb489480901a6749513ef5c31d229dcaca87

  • SHA512

    666325e9ed71da4955058aea31b91e2e848be43211e511865f393b7f537c208c6b31c182f7d728c2704e9fc87e7d1be3f98f5fee4d34f11c56764e1c599afd02

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\libstdc++-6.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3996
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\libstdc++-6.dll,#1
      2⤵
        PID:3844
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3844 -s 648
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:416

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • memory/3844-115-0x0000000000000000-mapping.dmp
    • memory/3844-117-0x0000000064940000-0x0000000064959000-memory.dmp
      Filesize

      100KB

    • memory/3844-116-0x0000000064940000-0x0000000064959000-memory.dmp
      Filesize

      100KB

    • memory/3844-119-0x0000000064940000-0x0000000064959000-memory.dmp
      Filesize

      100KB

    • memory/3844-118-0x0000000064940000-0x0000000064959000-memory.dmp
      Filesize

      100KB

    • memory/3844-120-0x000000006FE40000-0x000000006FFC6000-memory.dmp
      Filesize

      1.5MB