Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-08-2024 02:54

General

  • Target

    c95b33c8f04267b719df3d1206dc2e7ec00f35cf5d26ff1b71a62fca8033cc2c.exe

  • Size

    415KB

  • MD5

    7f933f4e7451e1aa0c8b9c38c43a81c9

  • SHA1

    888b20e270a4c42f0ac8eb991e2f0e69ed388d41

  • SHA256

    c95b33c8f04267b719df3d1206dc2e7ec00f35cf5d26ff1b71a62fca8033cc2c

  • SHA512

    f967c462af3f60a43c9ff05c227e8968012fbb377ee35da5d983fe280afef6c9fabf3a32a74b915f63ef49ece9c6459c523fb871232b23c3d015c40728a9e5c4

  • SSDEEP

    6144:HaeeLHupH8wcoTA2nDJGvRld7M5zhRcl+Vj6gvH0mXK7Y9xKiTgXqqbgG/1EPB:reLkYCgldAhRcloe4y7YCmzr8E

Malware Config

Signatures

  • 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\c95b33c8f04267b719df3d1206dc2e7ec00f35cf5d26ff1b71a62fca8033cc2c.exe
    "C:\Users\Admin\AppData\Local\Temp\c95b33c8f04267b719df3d1206dc2e7ec00f35cf5d26ff1b71a62fca8033cc2c.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:5008
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5008 -s 256
      2⤵
      • Program crash
      PID:3528
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 5008 -ip 5008
    1⤵
      PID:2864

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • memory/5008-0-0x000000000103B000-0x00000000010CE000-memory.dmp

      Filesize

      588KB

    • memory/5008-1-0x0000000000FD0000-0x00000000010CE000-memory.dmp

      Filesize

      1016KB

    • memory/5008-2-0x000000000103B000-0x00000000010CE000-memory.dmp

      Filesize

      588KB

    • memory/5008-3-0x0000000000FD0000-0x00000000010CE000-memory.dmp

      Filesize

      1016KB