Overview

overview

10

Static

static

3

c8623c3b08...18.exe

windows7-x64

10

c8623c3b08...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    115s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/04/2024, 02:31

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General

  • Target
    c8623c3b0823a6e18beae9b8a7345bba_JaffaCakes118.exe
  • Size 738KB
  • Sample240405-cz79qaaf24
  • SHA256 a5c8eb6c897258f7ba995c557ca172ae7850225f5e39b94c58024a278b52951c
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
expirobackdoor

Malware Config

Signatures

  • Expiro, m0yv

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

    backdoorexpiro
  • Expiro payload 3 IoCs
    backdoor
  • Program crash 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c8623c3b0823a6e18beae9b8a7345bba_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c8623c3b0823a6e18beae9b8a7345bba_JaffaCakes118.exe"
    1⤵
      PID:3364
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 336
        2⤵
        • Program crash
        PID:1992
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3364 -ip 3364
      1⤵
        PID:1476
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1404 --field-trial-handle=3044,i,17059189006398306756,4247826696353232857,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:3164

        Network

              MITRE ATT&CK Matrix

              Replay Monitor

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              Downloads

              memory/3364-0-0x0000000000720000-0x0000000000872000-memory.dmp
              Download

              memory/3364-1-0x0000000000720000-0x0000000000872000-memory.dmp
              Download

              memory/3364-2-0x0000000000720000-0x0000000000872000-memory.dmp
              Download