Analysis

  • max time kernel
    148s
  • max time network
    154s
  • 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 07:44

General

  • Target

    54e823e778135245e1ac095fd6af3320dc8235dfdb1f973144ecb5a532ac45a6.exe

  • Size

    738KB

  • MD5

    ee7da429fe5ec4209b01cfcc8d867cfa

  • SHA1

    4640a48f371eb4c8870d5d230f696793bab7ef12

  • SHA256

    54e823e778135245e1ac095fd6af3320dc8235dfdb1f973144ecb5a532ac45a6

  • SHA512

    9bd8e426d89facb295a86d61f6a6238a40148a9adac5e9212bd6157f8626ffb29856aedb67a6f51743d637f31d15f102abb9f90b67a25fb9c4faa47914bc461b

  • SSDEEP

    12288:lAwSfxL/2Dc3jDLLmt0LDQewsHjhWW1d9cMO0qIlp7+x9xhIS2:GGewsHjoW1d9cwNa98

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\54e823e778135245e1ac095fd6af3320dc8235dfdb1f973144ecb5a532ac45a6.exe
    "C:\Users\Admin\AppData\Local\Temp\54e823e778135245e1ac095fd6af3320dc8235dfdb1f973144ecb5a532ac45a6.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:2044
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 336
      2⤵
      • Program crash
      PID:3580
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2044 -ip 2044
    1⤵
      PID:940

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2044-0-0x0000000000C0F000-0x0000000000CA2000-memory.dmp

      Filesize

      588KB

    • memory/2044-1-0x0000000000B50000-0x0000000000CA2000-memory.dmp

      Filesize

      1.3MB

    • memory/2044-2-0x0000000000C0F000-0x0000000000CA2000-memory.dmp

      Filesize

      588KB

    • memory/2044-3-0x0000000000B50000-0x0000000000CA2000-memory.dmp

      Filesize

      1.3MB