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Analysis

  • max time kernel
    147s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/08/2024, 13:22

General

  • Target

    b7cbf5f879ed0aaac5968be4d6d01c71_JaffaCakes118.exe

  • Size

    156KB

  • MD5

    b7cbf5f879ed0aaac5968be4d6d01c71

  • SHA1

    9c7c21e74976338fe28b8fe8ada8f566604554db

  • SHA256

    f18f7d106e180317dded536bc89c2f9ab594c93ceadad9be47df00e0865ff824

  • SHA512

    650f239a12d5ff624de528940eee823b61561fb4569b78f19e286178b352f7aab83488efec3e2fa24399ae230d429a9d6480acbc9ed6b89be3e13f4765f21e58

  • SSDEEP

    384:KzZgubkc7owyRaeV74Rf5tTOHqpLoPo9RAp3qYjVOcGJi92pIHOIpHVQyBT5B:sgskZZRD94bRoVqYQ0OPIJVl5B

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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.

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b7cbf5f879ed0aaac5968be4d6d01c71_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b7cbf5f879ed0aaac5968be4d6d01c71_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2924
    • C:\Users\Admin\AppData\Local\Temp\yzgbqmtfhwakv.exe
      C:\Users\Admin\AppData\Local\Temp\yzgbqmtfhwakv.exe wwww
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      PID:4936
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\gtseyhbe7.bat" "C:\Users\Admin\AppData\Local\Temp\b7cbf5f879ed0aaac5968be4d6d01c71_JaffaCakes118.exe""
      2⤵
      • System Location Discovery: System Language Discovery
      PID:772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\gtseyhbe7.bat

    Filesize

    52B

    MD5

    8db53e31a3117b405e1abf5ba790bf9e

    SHA1

    242a8834c7c89a12336481b5e2c3264672f9ffc4

    SHA256

    669a10708b8b580ecdb9d50e83c2e2a8826155c1836d27d6e9f418bccf06c87c

    SHA512

    b8bff236a0bb3b161295665db26c9ac597441d2bf19acdeb2a70c1f6c75d8f6268dfa1241926b0400aa98c89b4acebc7ae6216a03558231706480a0dc990499f

  • C:\Users\Admin\AppData\Local\Temp\yzgbqmtfhwakv.exe

    Filesize

    156KB

    MD5

    b7cbf5f879ed0aaac5968be4d6d01c71

    SHA1

    9c7c21e74976338fe28b8fe8ada8f566604554db

    SHA256

    f18f7d106e180317dded536bc89c2f9ab594c93ceadad9be47df00e0865ff824

    SHA512

    650f239a12d5ff624de528940eee823b61561fb4569b78f19e286178b352f7aab83488efec3e2fa24399ae230d429a9d6480acbc9ed6b89be3e13f4765f21e58

  • memory/2924-10-0x0000000000401000-0x0000000000406000-memory.dmp

    Filesize

    20KB

  • memory/2924-3-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/2924-4-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/2924-2-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/2924-0-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/2924-12-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/2924-1-0x0000000000401000-0x0000000000406000-memory.dmp

    Filesize

    20KB

  • memory/4936-14-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4936-13-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4936-19-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB

  • memory/4936-20-0x0000000000400000-0x000000000042D000-memory.dmp

    Filesize

    180KB