Analysis

  • max time kernel
    137s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-05-2024 18:38

General

  • Target

    $TEMP/diaeresis.dll

  • Size

    10KB

  • MD5

    51921a259471561b82e7b37b08cac3a5

  • SHA1

    a3d991d42e1861f4db64438969116771bc8dbb81

  • SHA256

    32dc82dd46ca4e4937b9f3c31988dde9cd1cfd4c907798d942b13394169f1bf6

  • SHA512

    2446084e48688f37e60116c734dc9c8172e3692b2dde6e915c35f89bed7c383c4c62516680b4a701f3a8d29bcfdf7418f9846c302d4a64f042aabe000b07aa7a

  • SSDEEP

    192:dWRKKJtAvnh/W+z0DPlZ8GRSkmBxu22HypO00XX:dwJtAf70pRgxdJO00XX

Score
4/10

Malware Config

Signatures

  • Drops file in Windows directory 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\diaeresis.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3828
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\diaeresis.dll,#1
      2⤵
      • Drops file in Windows directory
      PID:4036
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4036 -s 576
        3⤵
        • Program crash
        PID:5788
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4036 -ip 4036
    1⤵
      PID:5808

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\Windows\win.ini

      Filesize

      131B

      MD5

      9848e4efb0abd437d65e6d3d1d973adb

      SHA1

      f427ac7c50b19f66658ae7f92cbaf21110b49a47

      SHA256

      c8b84add37da849977a84fe62badb6cb908be99769edb70d60bcd04c0aec2a3f

      SHA512

      f90f1f65b6b824a526469b8d739f733a54a7f485d8b5f680de7a35fac90786bf6ba5a0b1d62e139663c5ee73b8d687cf32d4ccf188e18c53084ec12d8c216b17

    • memory/4036-0-0x0000000000B60000-0x0000000000B67000-memory.dmp

      Filesize

      28KB

    • memory/4036-8-0x0000000000B40000-0x0000000000B41000-memory.dmp

      Filesize

      4KB

    • memory/4036-9-0x0000000000B50000-0x0000000000B51000-memory.dmp

      Filesize

      4KB