Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-04-2024 05:11

General

  • Target

    zlib.dll

  • Size

    52KB

  • MD5

    baf50241f7c97d5bce3371b9d45816c5

  • SHA1

    757b029a1d65c89406cffbbc80b43c026482eaf7

  • SHA256

    07148db288df8b8315cc9e874471c202fce59d0f1118f44e284d4bf722252776

  • SHA512

    2f848729a2c841e85e62396683a2dd8246ad7906d9e5db0e2aa7845d30f285240dd348cf1eab31a6256319a4fe732f1967afbcb8f9127461b71ea3e553a480c1

  • SSDEEP

    768:NRagNniRy7pA2cp+k8AVfgibjlR1L+zwWMyK3y8XuNN6OxPs6:NR6RmpITVfgin1iz91jq8U3

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\zlib.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3180
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\zlib.dll,#1
      2⤵
        PID:4048
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4048 -s 604
          3⤵
          • Program crash
          PID:3360
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4048 -ip 4048
      1⤵
        PID:4224

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads

      • memory/4048-0-0x00000000008A0000-0x00000000008C7000-memory.dmp
        Filesize

        156KB