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Analysis

  • max time kernel
    93s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/01/2025, 00:17

General

  • Target

    JaffaCakes118_4077705b993f00d36b1d13d4b9a87390.exe

  • Size

    437KB

  • MD5

    4077705b993f00d36b1d13d4b9a87390

  • SHA1

    be3a462ab6d6ef970015c3e30384079503ee4cd7

  • SHA256

    1f72b2f392c4e8d0cd7a0638ca92e5ec483c369bd92669392aba4425cf0d3599

  • SHA512

    fb3eff74ad3593dcc4ca11de2e4d1454d963b8dc4cad9e53aa1161c8125a328380ccce08f21123789bb0b111121b5ca9cea8890f9b51a6f4beb22ae2e685c9a6

  • SSDEEP

    6144:U0Vwm2i+mKaN68U8Wdvym8fXZkJ/L07IkX/c6MVO4zXUdn1NwBLDmFBF3UN:Ari+m/A4Wx3U0/LzARMVO4sNyDm3F3U

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_4077705b993f00d36b1d13d4b9a87390.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4077705b993f00d36b1d13d4b9a87390.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:1808
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 476
      2⤵
      • Program crash
      PID:1580
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1808 -ip 1808
    1⤵
      PID:3068

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1808-0-0x0000000000400000-0x0000000000494000-memory.dmp

      Filesize

      592KB

    • memory/1808-1-0x0000000000390000-0x0000000000494000-memory.dmp

      Filesize

      1.0MB

    • memory/1808-2-0x0000000000400000-0x0000000000494000-memory.dmp

      Filesize

      592KB

    • memory/1808-3-0x0000000000390000-0x0000000000494000-memory.dmp

      Filesize

      1.0MB