Analysis

  • max time kernel
    97s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-08-2024 01:06

General

  • Target

    827245af6c3bbb06d8eaac18a8297d67_JaffaCakes118.exe

  • Size

    49KB

  • MD5

    827245af6c3bbb06d8eaac18a8297d67

  • SHA1

    99c50e4ac76a005d4471ee71fc91c3c152455ba8

  • SHA256

    902d67ddbbc33eee3e075ebe56a1545a7db5ba1f894047e202cf63e406f6730a

  • SHA512

    b4e47af41f8b4c58bcad274da81821f2fa6236cfede750a394644c46e231be699ce62dd77e9bce2d01b66eed716f8156d9028fa46dce21f2b9741eec294a8cfd

  • SSDEEP

    768:Tgzuq4QESHNzw1FiN0Aklddir9nCV9G5mXQAbKZkRO5Q9mrlptwyOZr8wSwAatK:yuq4QTHNVvk/dm4QYgp1OZrXSfOK

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops autorun.inf file 1 TTPs 6 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Program crash 1 IoCs
  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\827245af6c3bbb06d8eaac18a8297d67_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\827245af6c3bbb06d8eaac18a8297d67_JaffaCakes118.exe"
    1⤵
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4388
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:4488
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c date 2005-10-19
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2072
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 444
      2⤵
      • Program crash
      PID:2264
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4388 -ip 4388
    1⤵
      PID:232

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\autorun.inf

      Filesize

      172B

      MD5

      5b89144865f4c7f6e9fa366c2137a959

      SHA1

      83798192f2f88d9831e167ff165b2761e47e9817

      SHA256

      ca193b6a7c88fe3d0c482dcb2103339fd883636cfbfd476dce7ea169e01f1713

      SHA512

      70a15f328289d5b316ce0d36db0bf7630a6f51a31215b4c38eb22b4049128aa894af9b9f25286223996001b1ebb607c0f94496f2215ebf8db8bdbcd7026b107c

    • C:\Windows\SysWOW64\unlmon.dll

      Filesize

      1.6MB

      MD5

      e0e12856ca90be7f5ab8dfc0f0313078

      SHA1

      cc5accf48b8e6c2fd39d1f800229cdbb54305518

      SHA256

      81ec3e3c98e5f0af0dca21b9f08f2be445b46df2ca2354eaf3523bddcb125619

      SHA512

      162c56367dca2291117f2391951970273969518b0db2bbc5d51c458173a8028c88d9dfd93aef01ed05b369f953e2953cc6be252daeb17556dbc33e5383900fa6

    • C:\Windows\SysWOW64\{926A036A-1

      Filesize

      49KB

      MD5

      827245af6c3bbb06d8eaac18a8297d67

      SHA1

      99c50e4ac76a005d4471ee71fc91c3c152455ba8

      SHA256

      902d67ddbbc33eee3e075ebe56a1545a7db5ba1f894047e202cf63e406f6730a

      SHA512

      b4e47af41f8b4c58bcad274da81821f2fa6236cfede750a394644c46e231be699ce62dd77e9bce2d01b66eed716f8156d9028fa46dce21f2b9741eec294a8cfd

    • memory/4388-21-0x0000000013140000-0x0000000013152000-memory.dmp

      Filesize

      72KB

    • memory/4488-15-0x0000000013140000-0x0000000013152000-memory.dmp

      Filesize

      72KB

    • memory/4488-22-0x0000000013140000-0x0000000013152000-memory.dmp

      Filesize

      72KB