Analysis

  • max time kernel
    148s
  • 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 02:15

General

  • Target

    b384401b9bf9e661a40425524c82ef41.dll

  • Size

    188KB

  • MD5

    b384401b9bf9e661a40425524c82ef41

  • SHA1

    aa77fb4bebdc8b99da4ba565466cabeb970e372c

  • SHA256

    a644371754110f018327556967366c80084d8d6ea3d7dbc278a231f54f489398

  • SHA512

    653535c522e084d09f0155eb10358e7f84272159b5a073483754425e9d52094a60f00c3b9f7d894c9fad2595ae3ef59c2b08a7044a9b64876f4a20ec076755de

  • SSDEEP

    3072:3A8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAo/o:3zIqATVfQeV2FZalKq6jtGJWuTmd

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\b384401b9bf9e661a40425524c82ef41.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3940
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b384401b9bf9e661a40425524c82ef41.dll,#1
      2⤵
        PID:4564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4564 -s 692
          3⤵
          • Program crash
          PID:4852
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4564 -ip 4564
      1⤵
        PID:1436

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4564-0-0x00000000757B0000-0x00000000757E0000-memory.dmp

        Filesize

        192KB

      • memory/4564-1-0x0000000001250000-0x0000000001256000-memory.dmp

        Filesize

        24KB