Analysis

  • max time kernel
    138s
  • max time network
    135s
  • 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 14:27

General

  • Target

    ecf1c18fd8e00059f7408f943e96f73aa08839601eec0bc2588fcb3e9c29d137.exe

  • Size

    415KB

  • MD5

    c4cc29108ef8565e5251c56047586e20

  • SHA1

    290a6b8d1d2b745d3a61be322ec9b729d5ba844d

  • SHA256

    ecf1c18fd8e00059f7408f943e96f73aa08839601eec0bc2588fcb3e9c29d137

  • SHA512

    ecdeaf0f4860bfd70ff9378485a3e952e9fb6eafca64c300b0cf24779357350814662f3648804021651a51f4fafd174a69dc796695c45f01c17efae89ca80477

  • SSDEEP

    6144:pryyKsi2/CGBfHYTbILiniQCLZ4jekjEXL6cbr/mgppj3l3s1LOsoYYL2Ta0cI:pryyKsiWrLitCL0Or/VpprlkOsc8a9I

Malware Config

Signatures

  • Expiro, m0yv

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

  • Expiro payload 4 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\ecf1c18fd8e00059f7408f943e96f73aa08839601eec0bc2588fcb3e9c29d137.exe
    "C:\Users\Admin\AppData\Local\Temp\ecf1c18fd8e00059f7408f943e96f73aa08839601eec0bc2588fcb3e9c29d137.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:1500
  • 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=4360,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=4408 /prefetch:8
    1⤵
      PID:3116

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1500-0-0x00000000008FB000-0x000000000098E000-memory.dmp

      Filesize

      588KB

    • memory/1500-2-0x0000000000890000-0x000000000098E000-memory.dmp

      Filesize

      1016KB

    • memory/1500-1-0x00000000008FB000-0x000000000098E000-memory.dmp

      Filesize

      588KB

    • memory/1500-3-0x0000000000890000-0x000000000098E000-memory.dmp

      Filesize

      1016KB