Analysis

  • max time kernel
    142s
  • 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
    08/05/2024, 00:26

General

  • Target
    226489cd9e0a8d712494080f2555d568_JaffaCakes118.exe
  • Size 161KB
  • Sample240508-aq9ebabd95
  • SHA256 14b70f6df5d526508a2e5014ac72b079da51cad761f8aad8e65f42d4f9cefbf4
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 16 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • NSIS installer 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\226489cd9e0a8d712494080f2555d568_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\226489cd9e0a8d712494080f2555d568_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:3176
    • C:\Program Files (x86)\Daum\DaumIE\DaumIEi.exe
      "C:\Program Files (x86)\Daum\DaumIE\DaumIEi.exe" $Params
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      PID:3388
  • 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=3744 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2016

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          DaumIEi.exe

          • Path C:\Program Files (x86)\Daum\DaumIE\DaumIEi.exe
          • Size 149KB
          • SHA256 bc5c7b32727576e6019db45b8cede274ccbe06f424af99824f0fbb7e25a72ef4
          • MD5 SHA1 SHA512 SSDEEP

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsg533D.tmp\System.dll
          • Size 10KB
          • SHA256 7f3057abae7e8b5b91a35fbb23897657accb8c724e923d5d4a0e9208ca09c445
          • MD5 SHA1 SHA512 SSDEEP

          UAC.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsm3DFF.tmp\UAC.dll
          • Size 13KB
          • SHA256 45de80c4ef75ac01fdfca02a0c05c090311cb65b0f52b61e2307494d643466df
          • MD5 SHA1 SHA512 SSDEEP