Analysis

  • max time kernel
    141s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-03-2024 22:06

General

  • Target

    b33765481c44033b5016331146e40022.dll

  • Size

    188KB

  • MD5

    b33765481c44033b5016331146e40022

  • SHA1

    33d03e60b7a4866a48b0ba3cd70018e43cfcf08f

  • SHA256

    d46ed3025a63aaea60d748935a64dd2d95533eaaf29a4ffd68ea0cc924e95055

  • SHA512

    936332d04e4dab044f9a14f4433adcadbe608778cbf054557638e53b50095c415158b16a0248266adf9996e4f295c377cb227527aee6455b4d35b28aed815a75

  • SSDEEP

    3072:lA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAojo:lzIqATVfQeV2FZalKq6jtGJWuTmd

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 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b33765481c44033b5016331146e40022.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:812
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b33765481c44033b5016331146e40022.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2028
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2028 -s 308
        3⤵
        • Program crash
        PID:2560

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2028-1-0x0000000000210000-0x0000000000216000-memory.dmp

    Filesize

    24KB

  • memory/2028-0-0x0000000075260000-0x0000000075290000-memory.dmp

    Filesize

    192KB