Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07-03-2024 13:19

General

  • Target

    a462eb00b12df844e4d9eddee75f2d5951f73e7b37d57f8d466af3ead56208e4.exe

  • Size

    5KB

  • MD5

    cbc30f28d7e0577f32295c731f3ef064

  • SHA1

    49741bf42b24ed3979f5e7b17abb32233474637f

  • SHA256

    a462eb00b12df844e4d9eddee75f2d5951f73e7b37d57f8d466af3ead56208e4

  • SHA512

    93d124ed1c7bed8adb9f1d4a1c67c7958125556ce5fc5b8a50eea5004ae23ae53709074cca940c29a5b8a01a446a061afbab5370157ff1cc12c8875d3b1d5ccf

  • SSDEEP

    48:6GLmUs7Ug7QwJfzwv1BqqsF3YCbdjebPQPmx54tiOlX3mqF6pfbNtmm:6gg7O4o8disPll3WzNt

Malware Config

Extracted

Family

purecrypter

C2

https://qu.ax/uNsA.pdf

Signatures

  • PureCrypter

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

  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a462eb00b12df844e4d9eddee75f2d5951f73e7b37d57f8d466af3ead56208e4.exe
    "C:\Users\Admin\AppData\Local\Temp\a462eb00b12df844e4d9eddee75f2d5951f73e7b37d57f8d466af3ead56208e4.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:868
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 972
      2⤵
      • Program crash
      PID:2704

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/868-0-0x0000000000B10000-0x0000000000B18000-memory.dmp

    Filesize

    32KB

  • memory/868-1-0x0000000074180000-0x000000007486E000-memory.dmp

    Filesize

    6.9MB

  • memory/868-2-0x00000000043F0000-0x0000000004430000-memory.dmp

    Filesize

    256KB

  • memory/868-3-0x0000000074180000-0x000000007486E000-memory.dmp

    Filesize

    6.9MB

  • memory/868-4-0x00000000043F0000-0x0000000004430000-memory.dmp

    Filesize

    256KB