Analysis

  • max time kernel
    140s
  • max time network
    133s
  • 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 09:34

General

  • Target

    369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe

  • Size

    437KB

  • MD5

    3c1515f5f55282c116ad9ba9547c9121

  • SHA1

    41fdaa7f734ffdd38c95d104ed3f3583f9867c8b

  • SHA256

    369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2

  • SHA512

    6fc0c858013c0734e65f410a8cf0406e3953ef2d3edc07209c67744fa13b22295ec6bf03c551aa593f839d14caffe260c9410bb26fa8c692c8855446892e7dca

  • SSDEEP

    6144:UFVwm2i+mKaN68U8Wdvym8fXZk1/L07IkX/c6MVO4zXUdn1NwBLDmFBF3UN:Lri+m/A4Wx3Uo/LzARMVO4sNyDm3F3U

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\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe
    "C:\Users\Admin\AppData\Local\Temp\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:5076
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5076 -s 476
      2⤵
      • Program crash
      PID:4224
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5076 -ip 5076
    1⤵
      PID:2324
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4148,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=1288 /prefetch:8
      1⤵
        PID:1500

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/5076-0-0x0000000000B30000-0x0000000000BC4000-memory.dmp

        Filesize

        592KB

      • memory/5076-1-0x0000000000AC0000-0x0000000000BC4000-memory.dmp

        Filesize

        1.0MB

      • memory/5076-2-0x0000000000B30000-0x0000000000BC4000-memory.dmp

        Filesize

        592KB

      • memory/5076-3-0x0000000000AC0000-0x0000000000BC4000-memory.dmp

        Filesize

        1.0MB