Analysis

  • max time kernel
    138s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    17-08-2024 04:34

General

  • Target

    a13789f8bd4cdec26e790329a4004abc_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    a13789f8bd4cdec26e790329a4004abc

  • SHA1

    bb08e6997073e49249361ea813bc1c84b7a4c991

  • SHA256

    e5606780198a41f4ff786171c0ade6682cdf9a528bc3e41e5d4b85287846872a

  • SHA512

    7215de411b6acee9051b7398ca91c851bfc0ff50d6c795329d136ca65d20628346fe833cb7a9d0f77edc1663d8d80d9fe501c794da0074277d5d80be0a45b1a4

  • SSDEEP

    24576:MJeJfAqkjp98zHpieTX1DeGOxmKoc7LbvyFyK9:OeJfAJGpLrFeGOxmzc7M

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • UPX packed file 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 1 IoCs
  • AutoIT Executable 3 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 9 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a13789f8bd4cdec26e790329a4004abc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a13789f8bd4cdec26e790329a4004abc_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Disables RegEdit via registry modification
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies WinLogon
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1484
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C AT /delete /yes
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2964
      • C:\Windows\SysWOW64\at.exe
        AT /delete /yes
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2668
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\winhelp.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Windows\SysWOW64\at.exe
        AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\Windows\system32\winhelp.exe
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2776

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\rundll.exe

    Filesize

    161KB

    MD5

    19eca722500302f159f9872fcfed19ee

    SHA1

    b4aba98fce5fffe45bb1de10f5204bc34031bdad

    SHA256

    022b872cf55d4a2c0160e18350674b0c5a9d62a7523460ca5ae8edbed21cbc09

    SHA512

    8a92343149273bd0984b87a7fd2c0c077167cc3d7fdd3abdf63d40b407980d09d878cb6345e8e75f69f40c1b6a95c928419fc1fc192449e28399f5d2f2e3e9e2

  • C:\Windows\SysWOW64\winhelp.exe

    Filesize

    1.1MB

    MD5

    a13789f8bd4cdec26e790329a4004abc

    SHA1

    bb08e6997073e49249361ea813bc1c84b7a4c991

    SHA256

    e5606780198a41f4ff786171c0ade6682cdf9a528bc3e41e5d4b85287846872a

    SHA512

    7215de411b6acee9051b7398ca91c851bfc0ff50d6c795329d136ca65d20628346fe833cb7a9d0f77edc1663d8d80d9fe501c794da0074277d5d80be0a45b1a4

  • memory/1484-0-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB

  • memory/1484-31-0x0000000000400000-0x000000000053B000-memory.dmp

    Filesize

    1.2MB