Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/01/2025, 03:38

General

  • Target
    JaffaCakes118_892950032a1be5aa425a649450ea946e.exe
  • Size 476KB
  • Sample250108-d7fecavlcj
  • SHA256 8acaf014d3d6443f4dd5ed4abfe2b8ab45b6e500b31706cf88f3897865a0ed1b
  • MD5 SHA1 SHA512 SSDEEP

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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_892950032a1be5aa425a649450ea946e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_892950032a1be5aa425a649450ea946e.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:1068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1068 -s 528
      2⤵
      • Program crash
      PID:2208
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1068 -ip 1068
    1⤵
      PID:2576

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/1068-0-0x0000000000DAB000-0x0000000000E3F000-memory.dmp

          memory/1068-1-0x0000000000D30000-0x0000000000E3F000-memory.dmp

          memory/1068-2-0x0000000000DAB000-0x0000000000E3F000-memory.dmp

          memory/1068-3-0x0000000000D30000-0x0000000000E3F000-memory.dmp