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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
    10/01/2025, 21:40

General

  • Target

    JaffaCakes118_eeff2ab6ead0a81df9718b2de5d81d08.exe

  • Size

    417KB

  • MD5

    eeff2ab6ead0a81df9718b2de5d81d08

  • SHA1

    5d63253476d72137ab4b191a4d944db5db911343

  • SHA256

    212918a42f744a3cdc9c42aae2dd287ad3d33facfc3a85a484f73cad6e592dc3

  • SHA512

    69a46535869c7116b269696eb41be2999ff76da84f8abe7e4141782371607dc83d4b07a84e1d3418134e86417da549f42a0126dc23d5a39d964ea8495b3513ed

  • SSDEEP

    6144:BSpwTxz8fEYga22UHHXyDArvBIM6zOt3ONgEox946lzmEZYS5+oj9COdbeOut8MQ:I+lAfEYAtHCDArvxeOkjo46hjYJQ0mN

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_eeff2ab6ead0a81df9718b2de5d81d08.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_eeff2ab6ead0a81df9718b2de5d81d08.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:1764
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1764 -s 256
      2⤵
      • Program crash
      PID:3308
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1764 -ip 1764
    1⤵
      PID:1088

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • memory/1764-0-0x00000000005CC000-0x000000000065F000-memory.dmp

      Filesize

      588KB

    • memory/1764-1-0x0000000000560000-0x000000000065F000-memory.dmp

      Filesize

      1020KB

    • memory/1764-2-0x00000000005CC000-0x000000000065F000-memory.dmp

      Filesize

      588KB

    • memory/1764-3-0x0000000000560000-0x000000000065F000-memory.dmp

      Filesize

      1020KB