Analysis

  • max time kernel
    91s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-04-2024 04:56

General

  • Target

    dbc86fb7bb8ff78aa755b835af1cea43_JaffaCakes118.exe

  • Size

    76KB

  • MD5

    dbc86fb7bb8ff78aa755b835af1cea43

  • SHA1

    ef3dded98b53181472f2f76bd56640e78441c094

  • SHA256

    8194267924b10c3df2ea10dc1d56f9365effe18125b9197dfcc720db3e3e5f48

  • SHA512

    ebd831c6e12253f18a7989590cdd31280d8da4699a2fb840a3dcca3bcb65e3152a14684ed7bff33e0a6e708553420917a289b720091d60322d81408e917eebb6

  • SSDEEP

    768:WIcB9i3IULFMBc237bobA7ymRd0uxUDTJL6oNsgBvAyox0ct:W9HyIULFMAAiu6JL6oNsgFAyox0ct

Malware Config

Extracted

Family

purecrypter

C2

https://store2.gofile.io/download/96e2a2e4-33ce-46bb-ba72-e13519fff47c/Rjfllovjwejwtxyvecmyn.dll

Signatures

  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dbc86fb7bb8ff78aa755b835af1cea43_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\dbc86fb7bb8ff78aa755b835af1cea43_JaffaCakes118.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4784
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 1776
      2⤵
      • Program crash
      PID:4324
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4784 -ip 4784
    1⤵
      PID:4412

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4784-0-0x0000000000990000-0x00000000009A8000-memory.dmp

      Filesize

      96KB

    • memory/4784-1-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB

    • memory/4784-2-0x00000000053B0000-0x00000000053C0000-memory.dmp

      Filesize

      64KB

    • memory/4784-3-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB

    • memory/4784-4-0x0000000074A00000-0x00000000751B0000-memory.dmp

      Filesize

      7.7MB