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Analysis

  • max time kernel
    117s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11/01/2025, 11:26

General

  • Target

    JaffaCakes118_fffac2b95a2f7b00a5f14dc25a94934f.exe

  • Size

    417KB

  • MD5

    fffac2b95a2f7b00a5f14dc25a94934f

  • SHA1

    b316d93f4caad620e5894f1b28c7d1ca34291327

  • SHA256

    532c86e19718c704908c83478c506504f82eb8cdf1457f9e2d665eecedef2ca3

  • SHA512

    d24e2239c18f1f90d955005389accefae9b1929d3bb75d5e8bf1951eb0a18a29fba58a78c9f9b36d26bed52c2c8652acd367a0df1fd9ae968944316c7ed78a70

  • SSDEEP

    6144:8zSpwTEOzPSK5U2SoJ8VWackqV1ZmXRWLgKocUq8nOfaIROo71YvK09lw+45B:l+IK5U2SoyspmwLQcUqgsPBYv745B

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_fffac2b95a2f7b00a5f14dc25a94934f.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_fffac2b95a2f7b00a5f14dc25a94934f.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3020
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3020 -s 68
      2⤵
      • Program crash
      PID:2372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/3020-0-0x000000000022C000-0x00000000002BF000-memory.dmp

    Filesize

    588KB

  • memory/3020-1-0x00000000001C0000-0x00000000002BF000-memory.dmp

    Filesize

    1020KB

  • memory/3020-2-0x000000000022C000-0x00000000002BF000-memory.dmp

    Filesize

    588KB

  • memory/3020-3-0x00000000001C0000-0x00000000002BF000-memory.dmp

    Filesize

    1020KB