Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 22:47

General

  • Target

    $PLUGINSDIR/nsRichEdit.dll

  • Size

    5KB

  • MD5

    02f1858b3131ffc3fc5e3a5391d3a489

  • SHA1

    454a6d749cf55ff990bd9f57941aca9d1f1674f6

  • SHA256

    f00bd6d3e7c7b8e8ad18b7dc6275fb80cc720fb164200a6506f50f6e66998b12

  • SHA512

    8147fa8014a5065f4fed7de1fbb9c2ee2c1b94d63596f7bbcf6821ecd41a73d25ebdfa1e71ca74d7598cba063042b6dfcaf050a23d0c855a7b6fbc94147ab41b

  • SSDEEP

    96:Z3CA+/dN6g2Aznq+1kaNar7ta6mKAJN0u4KOhB7lkZ3hBjB8wZ:Z3G/D26EaNar7QKzLdZkZX

Score
7/10
upx

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsRichEdit.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2216
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsRichEdit.dll,#1
      2⤵
        PID:512
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 512 -s 624
          3⤵
          • Program crash
          PID:3968
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 512 -ip 512
      1⤵
        PID:624

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/512-0-0x00000000754D0000-0x00000000754D9000-memory.dmp
        Filesize

        36KB

      • memory/512-2-0x00000000754D0000-0x00000000754D9000-memory.dmp
        Filesize

        36KB