Analysis

  • max time kernel
    138s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/05/2024, 22:44

General

  • Target
    83e2f4556f490cfc94ccf7148dc2f2f0_NEIKI.exe
  • Size 36KB
  • Sample240508-2pbkfabe8w
  • SHA256 cf3d951db3586bbef07850d301c85b28069dfc12544b3d6f13e7a073cb846ce0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Program crash 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83e2f4556f490cfc94ccf7148dc2f2f0_NEIKI.exe
    "C:\Users\Admin\AppData\Local\Temp\83e2f4556f490cfc94ccf7148dc2f2f0_NEIKI.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 224
      2⤵
      • Program crash
      PID:3076
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2992 -s 224
      2⤵
      • Program crash
      PID:1832
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2992 -ip 2992
    1⤵
      PID:4528
    • 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=4132 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4120

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

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            Downloads

            memory/2992-0-0x0000000000400000-0x0000000000409000-memory.dmp