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Analysis

  • max time kernel
    147s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    11/09/2024, 06:45

General

  • Target

    d9cf57a7c2e8430bd4224d594d6af42d_JaffaCakes118.exe

  • Size

    332KB

  • MD5

    d9cf57a7c2e8430bd4224d594d6af42d

  • SHA1

    49e4045518eaf43993e20417c957f6a46e9e7b02

  • SHA256

    ba251654fa02a35fd14bdf741e3e9bb6e16b19ef66a4ad9c8220a18598b05fcb

  • SHA512

    7f49c0fcc2de5aa845866b9ccc79d192276c0de2e35e703fd3b248ffb543571cfd58d3fa7912e638da8d346fa10a3752e41a1eacf1e9fcddf3e38fdf7c7a3695

  • SSDEEP

    6144:/Y5Ix+fkSpcmwSUjT9jCu9UOem7HQKoZufpU:/YP7pdwSK9Z9/xEZopU

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Disables taskbar notifications via registry modification
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Modifies system executable filetype association 2 TTPs 17 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 registry class 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of FindShellTrayWindow 35 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\d9cf57a7c2e8430bd4224d594d6af42d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\d9cf57a7c2e8430bd4224d594d6af42d_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Users\Admin\AppData\Local\yrp.exe
      "C:\Users\Admin\AppData\Local\yrp.exe" -gav C:\Users\Admin\AppData\Local\Temp\d9cf57a7c2e8430bd4224d594d6af42d_JaffaCakes118.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2428
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Boot or Logon Autostart Execution: Active Setup
    • Modifies registry class
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\yrp.exe

    Filesize

    332KB

    MD5

    d9cf57a7c2e8430bd4224d594d6af42d

    SHA1

    49e4045518eaf43993e20417c957f6a46e9e7b02

    SHA256

    ba251654fa02a35fd14bdf741e3e9bb6e16b19ef66a4ad9c8220a18598b05fcb

    SHA512

    7f49c0fcc2de5aa845866b9ccc79d192276c0de2e35e703fd3b248ffb543571cfd58d3fa7912e638da8d346fa10a3752e41a1eacf1e9fcddf3e38fdf7c7a3695

  • memory/2428-25-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-19-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-32-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-30-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-29-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-13-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-14-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-28-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-15-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-20-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-27-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-18-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-17-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-24-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2428-26-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2812-31-0x0000000003B30000-0x0000000003B40000-memory.dmp

    Filesize

    64KB

  • memory/2968-3-0x0000000000401000-0x00000000005F0000-memory.dmp

    Filesize

    1.9MB

  • memory/2968-1-0x0000000000250000-0x000000000025C000-memory.dmp

    Filesize

    48KB

  • memory/2968-10-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-11-0x0000000000401000-0x00000000005F0000-memory.dmp

    Filesize

    1.9MB

  • memory/2968-0-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB

  • memory/2968-4-0x0000000000400000-0x00000000005F7000-memory.dmp

    Filesize

    2.0MB