Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-03-2024 04:05

General

  • Target

    4ca7ad65e21778c4ec8fab5129260d32_JaffaCakes118.exe

  • Size

    28KB

  • MD5

    4ca7ad65e21778c4ec8fab5129260d32

  • SHA1

    461ae78946a55078590300798f08bc00e0e10d9d

  • SHA256

    073a9a5eaf10598b2ebf99094fc29e04778ee7272319687d04c53f3d903de94c

  • SHA512

    31b22762c0fb2d3d6c39bb5bd94c322a7d13cd6c5fd297e79955cd0095cbd4aaf7f4ab208ac304bf3069ce218a733dae6ac85d65cf15995bcbe649ad705820e8

  • SSDEEP

    384:AxYcSYE/AbtbbjG2w1/ztG/IbM9noIUEJLzS88I/:A6UEgGmoUL

Malware Config

Extracted

Family

purecrypter

C2

https://store2.gofile.io/download/fdd80845-961b-46c7-a15d-0aedbdce6384/Gxetichiqsm.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\4ca7ad65e21778c4ec8fab5129260d32_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4ca7ad65e21778c4ec8fab5129260d32_JaffaCakes118.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4324
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4324 -s 1808
      2⤵
      • Program crash
      PID:1780
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4324 -ip 4324
    1⤵
      PID:1700

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4324-0-0x0000000000740000-0x000000000074E000-memory.dmp

      Filesize

      56KB

    • memory/4324-1-0x0000000075280000-0x0000000075A30000-memory.dmp

      Filesize

      7.7MB

    • memory/4324-2-0x0000000005320000-0x0000000005330000-memory.dmp

      Filesize

      64KB

    • memory/4324-3-0x0000000075280000-0x0000000075A30000-memory.dmp

      Filesize

      7.7MB