Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11-06-2022 17:09

General

  • Target

    VYVNqLNFQDkkklgbtq.dll

  • Size

    512KB

  • MD5

    2244cac9d905d4fc819116ba4289da7c

  • SHA1

    e28f4b17fd82f9e0e0f92699820e43ff38630403

  • SHA256

    3739d6dfdd6a52951b2a44b2b1c5d0f9486c2df83b789d7e7ab76264d2d5dcde

  • SHA512

    e2cdac46b06a926fad78304fa6c43e940e649b257661eeaeaae53d25a7a5d8250e701a6a9e9cc0f609546da58fca5e81b81d9cb59fbe6690eded4a8f0bee95c4

Malware Config

Extracted

Family

dridex

Botnet

22203

C2

51.159.52.196:443

134.209.247.135:6602

194.233.68.48:5228

89.31.56.58:593

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\VYVNqLNFQDkkklgbtq.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4556
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\VYVNqLNFQDkkklgbtq.dll,#1
      2⤵
        PID:3560
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3560 -s 652
          3⤵
          • Program crash
          PID:3720
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3560 -ip 3560
      1⤵
        PID:4152

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3560-130-0x0000000000000000-mapping.dmp
      • memory/3560-131-0x0000000075290000-0x0000000075311000-memory.dmp
        Filesize

        516KB

      • memory/3560-133-0x00000000003F0000-0x00000000003F6000-memory.dmp
        Filesize

        24KB