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Analysis

  • max time kernel
    14s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2025, 22:58

General

  • Target

    b4a2f3c3d5d4dd3ed6f06be4a6061e9b4e67e4a3c5fc8fae2ec4f93819b6a65e.exe

  • Size

    285KB

  • MD5

    34dea003bd27772ff052e54a35bb1756

  • SHA1

    2fc579540210d36b90c209af5ea98b7b3d4d6d55

  • SHA256

    b4a2f3c3d5d4dd3ed6f06be4a6061e9b4e67e4a3c5fc8fae2ec4f93819b6a65e

  • SHA512

    8161f2c78f156c77d39f19c2398cec1986afa6e500ee94648ad6071eda761eeeec8d78c2e0cfaf53b1ec603e954ffc65a07325af34a04c58e37fa316f764eb5b

  • SSDEEP

    6144:tOWCm+/c7R8Hm2rupNeanGnHNY9kkwjSz6YdXtwO2+ynTXSjrYQImYsRaTVrG36e:rMU7R8BSgmGntY9ojy6YdmOjmbSnRIm3

Malware Config

Signatures

  • Expiro family
  • Expiro, m0yv

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

  • Expiro payload 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\b4a2f3c3d5d4dd3ed6f06be4a6061e9b4e67e4a3c5fc8fae2ec4f93819b6a65e.exe
    "C:\Users\Admin\AppData\Local\Temp\b4a2f3c3d5d4dd3ed6f06be4a6061e9b4e67e4a3c5fc8fae2ec4f93819b6a65e.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:2044

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2044-0-0x0000000001000000-0x0000000001096000-memory.dmp

    Filesize

    600KB

  • memory/2044-1-0x0000000001003000-0x0000000001005000-memory.dmp

    Filesize

    8KB

  • memory/2044-2-0x0000000001000000-0x0000000001096000-memory.dmp

    Filesize

    600KB