Analysis

  • max time kernel
    93s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-03-2024 01:16

General

  • Target

    aff40c1ef760bb8f581ee1910c4d4f92.dll

  • Size

    188KB

  • MD5

    aff40c1ef760bb8f581ee1910c4d4f92

  • SHA1

    2893bc2060822b6901ca208981970dd49ee7bdc0

  • SHA256

    0eea4f5f709ad31d927431fc6ae589f074d325c4e7bced70cf32719275901df1

  • SHA512

    85c1f39c76dd1bb4b0fff1c5dd9af2b19eccc80b6785cb49bebf9249d957f91fe87167f9b3379cc07fa6e80fc6c5c56c8c05fda7b0b03c704a902d91109c68df

  • SSDEEP

    3072:HA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAoVo:HzIqATVfQeV2FZalKq6jtGJWuTmd

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\aff40c1ef760bb8f581ee1910c4d4f92.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3208
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\aff40c1ef760bb8f581ee1910c4d4f92.dll,#1
      2⤵
        PID:5060
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 688
          3⤵
          • Program crash
          PID:2632
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 5060 -ip 5060
      1⤵
        PID:2148

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/5060-0-0x0000000075250000-0x0000000075280000-memory.dmp

        Filesize

        192KB

      • memory/5060-1-0x0000000000870000-0x0000000000876000-memory.dmp

        Filesize

        24KB