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Analysis

  • max time kernel
    150s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/06/2024, 20:46

General

  • Target

    1364c154f89e29d21b2777233cec8017_JaffaCakes118.dll

  • Size

    31KB

  • MD5

    1364c154f89e29d21b2777233cec8017

  • SHA1

    03de4db2a7f0b7fff31f2cfbde818b5bb59e8c1f

  • SHA256

    424b01b39ccd257fa8fdaf40ebba3b9cd499420738b7d16395d664779c6f2df5

  • SHA512

    edf98059d2d696e315bd144d1c8ac2fa76e44ca3b88cd781ff75dbd1ba546cd98dd047040c457137e01993e1ff12d24c7ec1aa07efcfb6c68ef994474ed16d6f

  • SSDEEP

    768:2Mg0WzDlSSbxaRiZeSoV90z3oIYneRR11qvWvL:pW9PbdZmV9o3keRR11GeL

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Drops file in Windows directory 2 IoCs
  • Access Token Manipulation: Create Process with Token 1 TTPs 1 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\1364c154f89e29d21b2777233cec8017_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:232
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1364c154f89e29d21b2777233cec8017_JaffaCakes118.dll,#1
      2⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4888
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32 "C:\Windows\pdfshlex.dll",_RunAs@16
        3⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Access Token Manipulation: Create Process with Token
        • Suspicious behavior: EnumeratesProcesses
        PID:3780
  • 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 --field-trial-handle=3864,i,5229431749694857451,16836185654682871752,262144 --variations-seed-version --mojo-platform-channel-handle=4264 /prefetch:8
    1⤵
      PID:3784

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\pdfshlex.dll

      Filesize

      31KB

      MD5

      1364c154f89e29d21b2777233cec8017

      SHA1

      03de4db2a7f0b7fff31f2cfbde818b5bb59e8c1f

      SHA256

      424b01b39ccd257fa8fdaf40ebba3b9cd499420738b7d16395d664779c6f2df5

      SHA512

      edf98059d2d696e315bd144d1c8ac2fa76e44ca3b88cd781ff75dbd1ba546cd98dd047040c457137e01993e1ff12d24c7ec1aa07efcfb6c68ef994474ed16d6f

    • memory/3780-5-0x0000000010000000-0x0000000010056000-memory.dmp

      Filesize

      344KB

    • memory/3780-7-0x0000000010000000-0x0000000010056000-memory.dmp

      Filesize

      344KB

    • memory/4888-0-0x0000000010000000-0x0000000010056000-memory.dmp

      Filesize

      344KB

    • memory/4888-6-0x0000000010000000-0x0000000010056000-memory.dmp

      Filesize

      344KB