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Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/01/2024, 11:34

General

  • Target

    a8d9e78e7377d989847172a510ff43129cdded068e6727b7cbeff83237c12e60.dll

  • Size

    2.0MB

  • MD5

    4b43e2c19253905817b395d9343b7eda

  • SHA1

    555c1ea0ed0680d2479071f46c1a68c1f8c8389a

  • SHA256

    a8d9e78e7377d989847172a510ff43129cdded068e6727b7cbeff83237c12e60

  • SHA512

    897798ea137d0a65ef180f15b9475992b7f7c18a78978b5d618b630cba5a30f01d776a767174c37bc23f6a3e6923aeb4db156cd9271d9a228b7e685d4326b8b0

  • SSDEEP

    49152:YbR9b0sn90JHxac0DswNZopwECn8zGkHJOQUZF66:e9b0s90JHxsDswZoe/nyGkHJPUt

Score
7/10
upx

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 1 IoCs
  • Program crash 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a8d9e78e7377d989847172a510ff43129cdded068e6727b7cbeff83237c12e60.dll,#1
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    PID:1924
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 544
      2⤵
      • Program crash
      PID:4496
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 640
      2⤵
      • Program crash
      PID:520
  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a8d9e78e7377d989847172a510ff43129cdded068e6727b7cbeff83237c12e60.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4352
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 1924 -ip 1924
    1⤵
      PID:4724
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1924 -ip 1924
      1⤵
        PID:4168

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads

      • memory/1924-4-0x0000000010000000-0x0000000010030000-memory.dmp

        Filesize

        192KB

      • memory/1924-5-0x0000000074A60000-0x0000000074C4B000-memory.dmp

        Filesize

        1.9MB

      • memory/1924-7-0x0000000010000000-0x0000000010030000-memory.dmp

        Filesize

        192KB