Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/10/2024, 02:39

General

  • Target

    4b0fae714497cb3a60037e8f543d8ae9_JaffaCakes118.exe

  • Size

    423KB

  • MD5

    4b0fae714497cb3a60037e8f543d8ae9

  • SHA1

    8e53ff1ec3abcfe5cff2fe45c5feeef24a4ec918

  • SHA256

    829e8c5cb3aa8455f983872bb992e2e92966b940745e597c10742258c10b4173

  • SHA512

    c75e9b46087bde983bd56dfa88d2d706e0d135b487e9689c9cf2a05df97067771b6d81cd920c879fd2f604f545f8d1fa0308fa83d00ed80099f1a55088ae4b5e

  • SSDEEP

    6144:csgZ0IeJo5wTNxC5yuQJjXOQbJJ7TN26lELeuWcr+KYJccBWRXTH:MZ0254rucLJnlYeirGBBWRb

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b0fae714497cb3a60037e8f543d8ae9_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4b0fae714497cb3a60037e8f543d8ae9_JaffaCakes118.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3636
    • C:\ProgramData\37wan\wy\wy.exe
      "C:\ProgramData\37wan\wy\wy.exe" /autorun /setuprun
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3236
    • C:\ProgramData\37wan\wy\wy.exe
      "C:\ProgramData\37wan\wy\wy.exe" /setupsucc
      2⤵
      • Executes dropped EXE
      • Writes to the Master Boot Record (MBR)
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3376

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ProgramData\37wan\wy\Lander.ini

          Filesize

          444B

          MD5

          b5fca1e229e9c2dc0925cc02a0aa21dd

          SHA1

          d1f503e783aaddcb9838a3a073436d1e66e547ff

          SHA256

          99c7d43f49d7439bb4ce604dfafbe5af180cb970fb9462e08b1b01faaea7c98e

          SHA512

          d3133baa027bf2fbb48e74e80c19c7d5cb45c34a030286b3f320e141d3596d4ebad9e762614759d240fd9262be9a05520b0fc7195cc6e0254db1aa1fb1dd5f78

        • C:\ProgramData\37wan\wy\lander.ini

          Filesize

          381B

          MD5

          fe609059a9a3871184f86b1825599c19

          SHA1

          16e1a7b1381c9bd3aa78aa416db8d1429706e53c

          SHA256

          517ae79c2ad9cdb10c82186be1166bde73d5872b9cb25e1eff21a677c64d8d5f

          SHA512

          11a76fde21c90f110ecf22adb9243c2dd796cd6f789a2efd8bec2d7993d47b7f53474e25b19451cdf556c4e9436d0c299582d8e08ea78433c0ffc05a9f2d01d6

        • C:\ProgramData\37wan\wy\lander.ini

          Filesize

          444B

          MD5

          95e5562252aa4837dcaf35879f8aaa3b

          SHA1

          0b5be2ec702acf16a340459a50fbd9b2e3f71ef8

          SHA256

          1d66d299c0fc7d316942acb43a9226bfba4dc36bdb71d24ee626e2f3e6142d28

          SHA512

          1b5774389df95e346b5ebc68532beb2238f5bbde1f4261467765bc75d62b73aa6d05b4f1b6aa793f0d8c18b057a0bf494bac3f505065c40b95c1047cf09b2c49

        • C:\ProgramData\37wan\wy\wy.exe

          Filesize

          1.9MB

          MD5

          b18c3fbda7f860cacd7009ca0b0a50c2

          SHA1

          2a5ee5d73b29dc2e072b25192acdf18931acc1c8

          SHA256

          5850211530459f873ca0310c2221e113580ddc51bc2a211fd5d62d3c1f9834eb

          SHA512

          c9bb7421c001d45f2362199b2ec6f6cd7f0a59a62ecbcd870212f32f2e2f9e21b95ccaef5ef085737bf94229f404c3e72146bfa49de69a2714593158658ef667

        • memory/3236-35-0x0000000003000000-0x0000000003001000-memory.dmp

          Filesize

          4KB

        • memory/3236-36-0x0000000003000000-0x0000000003001000-memory.dmp

          Filesize

          4KB