Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-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 3 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.

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe
    "C:\Users\Admin\AppData\Local\Temp\369e4db219ce55a7f90c19dedf84081a1e4471b04a9465d664d3985b758569a2.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2644
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2644 -s 160
      2⤵
      • Program crash
      PID:2696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2644-0-0x0000000000130000-0x00000000001C4000-memory.dmp

    Filesize

    592KB

  • memory/2644-1-0x00000000000C0000-0x00000000001C4000-memory.dmp

    Filesize

    1.0MB

  • memory/2644-2-0x0000000000130000-0x00000000001C4000-memory.dmp

    Filesize

    592KB