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Analysis

  • max time kernel
    143s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/06/2024, 23:18

General

  • Target

    03f1bdb01e2b181479cca69278015fba_JaffaCakes118.dll

  • Size

    236KB

  • MD5

    03f1bdb01e2b181479cca69278015fba

  • SHA1

    700e6362114599bab76c4f46c5828cd28012f2e3

  • SHA256

    c61aeb846b7a1c0859c4343222da8005dd54746fa51e55d7610eb7b1dd7b4f94

  • SHA512

    2c67f8eb009f94a9a38e8369bcf0f23b5fe07b56e34332d43aef465779704e420e190d755295d684e299bc545cf4b0d98989527814a5838c7dbe523c418f36fa

  • SSDEEP

    1536:Iguo2K86vta10RJQYPIHL+D5IWhxRh/Ci4ucg3/+k5ltr+DRPG8Gz7wk+cQvMR:Go256vS0RJAL+lHPKi40+66iwkD0a

Score
10/10

Malware Config

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\03f1bdb01e2b181479cca69278015fba_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4484
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\03f1bdb01e2b181479cca69278015fba_JaffaCakes118.dll,#1
      2⤵
      • Adds autorun key to be loaded by Explorer.exe on startup
      • Loads dropped DLL
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4248
  • 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=3972 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3776

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\SysWOW64\dxs.dll

      Filesize

      478KB

      MD5

      e99416267b61f52fa5ab994019efd359

      SHA1

      86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

      SHA256

      768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

      SHA512

      0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

    • memory/4248-0-0x0000000000401000-0x0000000000408000-memory.dmp

      Filesize

      28KB

    • memory/4248-7-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/4248-8-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/4248-11-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB