Analysis

  • max time kernel
    76s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-12-2022 07:18

General

  • Target

    InvoiceUpdate/NeedChangeRules.dll

  • Size

    733KB

  • MD5

    b37107701ed8936daba7d88adb4fd128

  • SHA1

    ae26543cc5e3b50f6b3edfdcc3b1f964354a31aa

  • SHA256

    e1fb048ebc4508feaa9f9180b038943150ac472548fe92d32504d5b5b19a93f3

  • SHA512

    91c3f1f68a05eea65b5113d75a59f6e68bc12b24cdcd4bdcf113cc7ed8a0de80720b2bbf7729c7317b389ec8cea1fd7c7e3d167d041f438f27695cf5dbbafe83

  • SSDEEP

    12288:bx5BlbjoVPn84C8oSZTkwvFsaLJ5sU4gzplgWQnLI7QAeh+nqb7/ODsrETSeWBE:b/CP1jVtkBKzsU4gLgWZ7tqb72eR

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\InvoiceUpdate\NeedChangeRules.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1372
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\InvoiceUpdate\NeedChangeRules.dll,#1
      2⤵
        PID:1672
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1672 -s 600
          3⤵
          • Program crash
          PID:4512
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1672 -ip 1672
      1⤵
        PID:1488

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads

      • memory/1672-132-0x0000000000000000-mapping.dmp