Analysis

  • max time kernel
    147s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-02-2024 18:56

General

  • Target

    zlib1.dll

  • Size

    90KB

  • MD5

    7e507af32ca219d2f832cf8d90ca805b

  • SHA1

    4eb56c6f4184efc5a6bb5c7cab46547cfa769744

  • SHA256

    3668c6749db59a6cbc5293d0a4f904f76d6fb5048704449dd53894916f408a57

  • SHA512

    d19c6a0a0798db42490631aa9e30da4200e0b687250daa5ec8bcfe68ae2589a523adeacb6c77544488ddc7610fa84be7477a92c2a27605537a0caec2449c87f1

  • SSDEEP

    1536:pQrGMvscpi5FEexSwqJFQjF2P5kzfWan9USUnToIfAIO6IOq89CVxX:pahexSwqJFQjF2wUrTBf2Iq6AxX

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\zlib1.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib1.dll,#1
      2⤵
        PID:3032
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 556
          3⤵
          • Program crash
          PID:3376
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3032 -ip 3032
      1⤵
        PID:4216

      Network

      MITRE ATT&CK Matrix

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      Downloads