Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-03-2024 01:31

General

  • Target

    b36f4d10693a2c9a7d48f174c6c612f1.dll

  • Size

    188KB

  • MD5

    b36f4d10693a2c9a7d48f174c6c612f1

  • SHA1

    9a35f2a8203e3829173104011563563b7e06be1f

  • SHA256

    7417de8bc151a8f1406bd7fa7d2b4eac427557038b52824ed4b9c40fbafef853

  • SHA512

    5e6897d6715f461119eaed88a8bc59cc61583498732d9a56284b91898073e45b37098f5d1b720297312e3d7175173892adc9adfed8acf9935c404231de9b693d

  • SSDEEP

    3072:EVA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAo8o:EVzIqATVfQeV2FZalKq6jtGJWuTmd

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

103.82.248.59:443

54.39.98.141:6602

103.109.247.8:10443

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b36f4d10693a2c9a7d48f174c6c612f1.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2256
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b36f4d10693a2c9a7d48f174c6c612f1.dll,#1
      2⤵
        PID:1040
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1040 -s 688
          3⤵
          • Program crash
          PID:4780
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1040 -ip 1040
      1⤵
        PID:2148

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1040-0-0x0000000075540000-0x0000000075570000-memory.dmp

        Filesize

        192KB

      • memory/1040-1-0x0000000001080000-0x0000000001086000-memory.dmp

        Filesize

        24KB