Analysis

  • max time kernel
    93s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/04/2024, 16:28

General

  • Target
    $PLUGINSDIR/nsUnzip.dll
  • Size 146KB
  • Sample240404-tysw3sda98
  • SHA256 4e4e429ecf1c49119a21c817899f64152b03b41b036fc1d92aee335043364c43
  • MD5 SHA1 SHA512 SSDEEP
Score
3/10

Malware Config

Signatures

  • 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\nsUnzip.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsUnzip.dll,#1
      2⤵
        PID:668
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 668 -s 612
          3⤵
          • Program crash
          PID:4856
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 668 -ip 668
      1⤵
        PID:1364

      Network

            MITRE ATT&CK Matrix

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            Downloads