Analysis

  • max time kernel
    134s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-08-2024 11:12

General

  • Target

    5416a414a27a40f75e64cc68fb456e7655732fe173f43685e93b9ecad1bbc7f7.exe

  • Size

    7.3MB

  • MD5

    0bbb47cfcf2fd2a290c10158d71a4335

  • SHA1

    2bc902e3227581ae29780fd1b039a8125e51ab8f

  • SHA256

    5416a414a27a40f75e64cc68fb456e7655732fe173f43685e93b9ecad1bbc7f7

  • SHA512

    479e5e78402084e26e73fd680713c0fc4ec639374e41264238f8bceef14bc39e858c3115839501f965e1d7a0df7099fd2616189b71f87e4b764c680954d09ecc

  • SSDEEP

    98304:qxC3ud6MOIvysiwCQKzo5qphIHVruP3WpF3UdE1hZHEdLFhmil+:9GQFMkhgJuP32+dmhZk/T

Malware Config

Signatures

  • Expiro, m0yv

    Expiro aka m0yv is a multi-functional backdoor written in C++.

  • Expiro payload 4 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

Processes

  • C:\Users\Admin\AppData\Local\Temp\5416a414a27a40f75e64cc68fb456e7655732fe173f43685e93b9ecad1bbc7f7.exe
    "C:\Users\Admin\AppData\Local\Temp\5416a414a27a40f75e64cc68fb456e7655732fe173f43685e93b9ecad1bbc7f7.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:3252
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 424
      2⤵
      • Program crash
      PID:2400
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3252 -ip 3252
    1⤵
      PID:436

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3252-0-0x0000000000CFE000-0x0000000000D91000-memory.dmp

      Filesize

      588KB

    • memory/3252-1-0x00000000005B0000-0x0000000000D91000-memory.dmp

      Filesize

      7.9MB

    • memory/3252-2-0x0000000000CFE000-0x0000000000D91000-memory.dmp

      Filesize

      588KB

    • memory/3252-3-0x00000000005B0000-0x0000000000D91000-memory.dmp

      Filesize

      7.9MB