Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    31-08-2024 08:14

General

  • Target

    e6e76e326d39cbe942d69f7d27cfa23355ddeb710a1ab7a29515cf0a001ce1b8.exe

  • Size

    415KB

  • MD5

    a4e5f1e7b92724a85597335c940a8619

  • SHA1

    1eab9b3ef1ddaea70b58186f19ddb085a2b1f44f

  • SHA256

    e6e76e326d39cbe942d69f7d27cfa23355ddeb710a1ab7a29515cf0a001ce1b8

  • SHA512

    2fb1c17603b5d5f192ea7e21e2c796b8f8d2d3b58e7eb91d8b7f2d1d34ec73bb4458acd54254574062cf95bdbc068b2de671993bf2bf45d844c67112fa9fbb60

  • SSDEEP

    6144:nwb1DRS9TABkzG/9caUsOY/S3kz0fRTRLj3WCbFdm71RRynlCRoQxT:wb1NSkkzk9caLVekz0nWG6yoRvx

Malware Config

Signatures

  • Expiro, m0yv

    Expiro aka m0yv is a multi-functional backdoor written in C++.

  • Expiro payload 3 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\e6e76e326d39cbe942d69f7d27cfa23355ddeb710a1ab7a29515cf0a001ce1b8.exe
    "C:\Users\Admin\AppData\Local\Temp\e6e76e326d39cbe942d69f7d27cfa23355ddeb710a1ab7a29515cf0a001ce1b8.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1828
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1828 -s 64
      2⤵
      • Program crash
      PID:2396

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1828-0-0x00000000007CB000-0x000000000085E000-memory.dmp

    Filesize

    588KB

  • memory/1828-1-0x0000000000760000-0x000000000085E000-memory.dmp

    Filesize

    1016KB

  • memory/1828-2-0x00000000007CB000-0x000000000085E000-memory.dmp

    Filesize

    588KB