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Analysis

  • max time kernel
    45s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2022, 11:37

General

  • Target

    AMR Player/avcodec.dll

  • Size

    4.6MB

  • MD5

    91255a74916beefdb6f585431c22f567

  • SHA1

    c4c927cc1bf5bb5e32ff6d9ecfd64a03d8ecc931

  • SHA256

    dad725e7683625f3f14dddd66a29b4acd0e4a587bcf37fa652b872671741e279

  • SHA512

    132082167c99c6415fe9902f76c16fe64b23731a574ec666f3646aae6a6f57ebdda101e6926c594dec3a279cab92f9cd1e58f19958b2472db34a26ca2d2a7b66

  • SSDEEP

    98304:H9Jr1cF87vTYQ53gVDHJrGqNg0/qHUVcbLGDFKBlnjvmdHbrSjN8py3p0QH691FJ:H9Jr1487vTYQ3gVLJrGqNg/LGDFKBlno

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\AMR Player\avcodec.dll",#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:952
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Local\Temp\AMR Player\avcodec.dll",#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1552
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1552 -s 228
        3⤵
        • Program crash
        PID:1740

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1552-55-0x0000000075E11000-0x0000000075E13000-memory.dmp

    Filesize

    8KB

  • memory/1552-57-0x0000000066780000-0x0000000066CBF000-memory.dmp

    Filesize

    5.2MB