Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    08/09/2024, 21:39

General

  • Target

    d5219afb76549771fa5bbf20245fdee4_JaffaCakes118.exe

  • Size

    332KB

  • MD5

    d5219afb76549771fa5bbf20245fdee4

  • SHA1

    a5ba2ccaf729466f0c7500c8605f53c4b2dc954a

  • SHA256

    48e242e9dd88d33a25542a55afac8f31c2c31d1bcbf6b493b3377c3a13ae8cf7

  • SHA512

    6d4f264b3fee9c56c4b1c594c406af2d801e362add1929f27d1bf92bb16a31ad47a0c30e23e77416c6563fbe6d614775bf3a62d779ca52daf731d89f4d88c934

  • SSDEEP

    6144:TVL5RDU7+yU1S4H+EtYGbHgWt5l/9Oty+7VEucls4O3Ua43UCo:TVL5xU73Uk4Y+HT3t8tyPPls4BaD

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d5219afb76549771fa5bbf20245fdee4_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d5219afb76549771fa5bbf20245fdee4_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Maps connected drives based on registry
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2480
    • C:\ProgramData\uhFwoisrCRE.exe
      C:\ProgramData\uhFwoisrCRE.exe
      2⤵
      • Executes dropped EXE
      • Maps connected drives based on registry
      • System Location Discovery: System Language Discovery
      PID:1788

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ProgramData\uhFwoisrCRE.exe

          Filesize

          332KB

          MD5

          d5219afb76549771fa5bbf20245fdee4

          SHA1

          a5ba2ccaf729466f0c7500c8605f53c4b2dc954a

          SHA256

          48e242e9dd88d33a25542a55afac8f31c2c31d1bcbf6b493b3377c3a13ae8cf7

          SHA512

          6d4f264b3fee9c56c4b1c594c406af2d801e362add1929f27d1bf92bb16a31ad47a0c30e23e77416c6563fbe6d614775bf3a62d779ca52daf731d89f4d88c934

        • memory/1788-23-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/1788-25-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/1788-26-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/2480-0-0x0000000000230000-0x0000000000231000-memory.dmp

          Filesize

          4KB

        • memory/2480-2-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/2480-1-0x0000000000400000-0x0000000000467000-memory.dmp

          Filesize

          412KB

        • memory/2480-3-0x0000000000400000-0x0000000000467000-memory.dmp

          Filesize

          412KB

        • memory/2480-4-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/2480-5-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/2480-6-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/2480-24-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB