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Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2024, 20:58

General

  • Target

    JaffaCakes118_3685daebb080bcf7a4028ebe73461826.exe

  • Size

    445KB

  • MD5

    3685daebb080bcf7a4028ebe73461826

  • SHA1

    299291291ef0dbb9e30e85c1316728a4678f8cb5

  • SHA256

    4c954bfb172a3d928fa3ccbc9a376ca2e39203d15925be3f90d54e006e6737a0

  • SHA512

    eb28e2dbac1bf9a49c2c03e87998e7824a57d3237ca54678870b6d21cc5e46bc921c113474f58148a814597087682750d353ce10bb554cc031ef7c217f134de0

  • SSDEEP

    6144:p4SsuZXSvB15BjSu1oX/pisWUG9hWFPlxXSZydH9kudseypDc7t8O0YFtmXCFLH8:GuZX+cbwfU/TEEVdLqW8kF4Su

Malware Config

Signatures

  • Expiro family
  • 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.

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3685daebb080bcf7a4028ebe73461826.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3685daebb080bcf7a4028ebe73461826.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 156
      2⤵
      • Program crash
      PID:3044

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/3048-0-0x0000000000902000-0x0000000000996000-memory.dmp

    Filesize

    592KB

  • memory/3048-1-0x0000000000890000-0x0000000000996000-memory.dmp

    Filesize

    1.0MB

  • memory/3048-2-0x0000000000902000-0x0000000000996000-memory.dmp

    Filesize

    592KB

  • memory/3048-3-0x0000000000890000-0x0000000000996000-memory.dmp

    Filesize

    1.0MB