Analysis

  • max time kernel
    146s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2024 10:59

General

  • Target

    204671631009e980b117eb4ea7de4d2e_JaffaCakes118.exe

  • Size

    84KB

  • MD5

    204671631009e980b117eb4ea7de4d2e

  • SHA1

    11e63fa2813faa78eebd8824aa2b158cce13bb5f

  • SHA256

    6e8f80033382fc04d72c15d49c574c4a8025fdbe01647b1fd041b993540fa764

  • SHA512

    f8d49fa4f7d79422008379e4ce820036de82654f15a300141b72930dbd3f2a53293312c8b2f61a6c6e8b8c9a7e384a4d6d8c408ed9fccadc1b3dd14518e89da8

  • SSDEEP

    1536:XHJILdpECz3IULFMAAiu6JL6oNsgFAyox0cHu:XHJAdpJz3IULY6JL6oNsYuu

Malware Config

Extracted

Family

purecrypter

C2

https://store2.gofile.io/download/f9bf4a66-3371-4133-8e18-24107236761e/Ruqkwagyqbeobzsmhd.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\204671631009e980b117eb4ea7de4d2e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\204671631009e980b117eb4ea7de4d2e_JaffaCakes118.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4632
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4632 -s 1788
      2⤵
      • Program crash
      PID:2296
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4632 -ip 4632
    1⤵
      PID:3960

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4632-1-0x0000000074670000-0x0000000074E20000-memory.dmp

      Filesize

      7.7MB

    • memory/4632-0-0x00000000002F0000-0x000000000030A000-memory.dmp

      Filesize

      104KB

    • memory/4632-2-0x0000000004C70000-0x0000000004C80000-memory.dmp

      Filesize

      64KB

    • memory/4632-3-0x0000000074670000-0x0000000074E20000-memory.dmp

      Filesize

      7.7MB

    • memory/4632-4-0x0000000004C70000-0x0000000004C80000-memory.dmp

      Filesize

      64KB

    • memory/4632-5-0x0000000074670000-0x0000000074E20000-memory.dmp

      Filesize

      7.7MB