Analysis

  • max time kernel
    92s
  • max time network
    127s
  • 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 10:14

General

  • Target

    b1df6bb731ecc9f3fb20857b2cfc559f.dll

  • Size

    188KB

  • MD5

    b1df6bb731ecc9f3fb20857b2cfc559f

  • SHA1

    48044789bef0bb6ebddc33a8c4b01fc157e157b2

  • SHA256

    006e0f57154580997395e919047510a08086edad9ea6759b23dde3e75b6d50b1

  • SHA512

    83ef43a1d6bbfcbd26d9afd8630b96f883a109894bf834aeda31fba522acfe48fa18c7e1bf4171908341b64be68217feb33ecee992f851b01e5d072d09bdf5d8

  • SSDEEP

    3072:TA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAo6o:TzIqATVfQeV2FZalKq6jtGJWuTmd

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\b1df6bb731ecc9f3fb20857b2cfc559f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3164
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1df6bb731ecc9f3fb20857b2cfc559f.dll,#1
      2⤵
        PID:3952
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3952 -s 692
          3⤵
          • Program crash
          PID:2976
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 192 -p 3952 -ip 3952
      1⤵
        PID:3100

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3952-0-0x00000000758D0000-0x0000000075900000-memory.dmp

        Filesize

        192KB

      • memory/3952-1-0x0000000002CE0000-0x0000000002CE6000-memory.dmp

        Filesize

        24KB