Analysis

  • max time kernel
    93s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-03-2024 20:50

General

  • Target

    b313f2ad71e89fcf90977ace0d2c09f1.dll

  • Size

    188KB

  • MD5

    b313f2ad71e89fcf90977ace0d2c09f1

  • SHA1

    a263f11fc9f560ff73b38545fc8bd68ea01f5ec0

  • SHA256

    bb465907bf57c1fe6ff0308ccd5f0a1a04b3a57a808ce13ec5eedc64675dc225

  • SHA512

    3e12dfa673f10893f20241c1d02c7b02e0f7b5537ea24d9a4638d2c5f6f91e099e77deb316edeac618bf2fb522800042aa8f8aa98ef8ca03dfc22887148f053b

  • SSDEEP

    3072:0A8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAoao:0zIqATVfQeV2FZalKq6jtGJWuTmd

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\b313f2ad71e89fcf90977ace0d2c09f1.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b313f2ad71e89fcf90977ace0d2c09f1.dll,#1
      2⤵
        PID:1136
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1136 -s 688
          3⤵
          • Program crash
          PID:3944
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 1136 -ip 1136
      1⤵
        PID:4476

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1136-0-0x0000000075900000-0x0000000075930000-memory.dmp

        Filesize

        192KB

      • memory/1136-1-0x0000000000DD0000-0x0000000000DD6000-memory.dmp

        Filesize

        24KB