Analysis

  • max time kernel
    146s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-03-2024 18:10

General

  • Target

    41347ab5d177516699a95664c9af347f_JaffaCakes118.exe

  • Size

    83KB

  • MD5

    41347ab5d177516699a95664c9af347f

  • SHA1

    ed91314e9da6cbb4564b94e2abc151f29daa9f69

  • SHA256

    67d0b08c6cf36abee6b895c90773663a21131e4bc36ff46726e8ba9a53ed0497

  • SHA512

    247fea690c2d0a8e4a6b35dba8f06c8dc21f6bcd0277aeb2e26ca8140e53855a51d089887096d237fc2d8a4b038b07e24b78b539b6d75902a48a44adc5a69488

  • SSDEEP

    768:AeriujPB4SJL9kIULFMBc237bobA7ymRd0uxUDTJL6oNsgBvAyox0cE:BFcIULFMAAiu6JL6oNsgFAyox0cE

Malware Config

Extracted

Family

purecrypter

C2

https://store2.gofile.io/download/9f0e979e-fbb3-45f6-bf56-791d49d1e99f/Dauzgvebbdn.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\41347ab5d177516699a95664c9af347f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\41347ab5d177516699a95664c9af347f_JaffaCakes118.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4876
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4876 -s 1788
      2⤵
      • Program crash
      PID:1916
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4876 -ip 4876
    1⤵
      PID:1208

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4876-0-0x0000000074EA0000-0x0000000075650000-memory.dmp

      Filesize

      7.7MB

    • memory/4876-1-0x0000000000200000-0x000000000021A000-memory.dmp

      Filesize

      104KB

    • memory/4876-2-0x0000000004E80000-0x0000000004E90000-memory.dmp

      Filesize

      64KB

    • memory/4876-3-0x0000000074EA0000-0x0000000075650000-memory.dmp

      Filesize

      7.7MB

    • memory/4876-4-0x0000000074EA0000-0x0000000075650000-memory.dmp

      Filesize

      7.7MB