Analysis

  • max time kernel
    140s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    28-05-2024 06:51

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 11 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:1456
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsRichEdit.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2068
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 240
        3⤵
        • Program crash
        PID:1716

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2068-0-0x00000000748A0000-0x00000000748A9000-memory.dmp

    Filesize

    36KB

  • memory/2068-1-0x0000000074890000-0x0000000074899000-memory.dmp

    Filesize

    36KB

  • memory/2068-2-0x00000000748A0000-0x00000000748A9000-memory.dmp

    Filesize

    36KB

  • memory/2068-5-0x00000000748A0000-0x00000000748A9000-memory.dmp

    Filesize

    36KB