Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-02-2024 08:16

General

  • Target

    8bd8b1509e108851cda3ef8e94bf38a0.dll

  • Size

    188KB

  • MD5

    8bd8b1509e108851cda3ef8e94bf38a0

  • SHA1

    598a7246db1ef20744a15fcffacfa7ac45d04c98

  • SHA256

    59af29822615e0906f9198de2cf38cea9251b7d7b868cdffb287bf6e9ca68216

  • SHA512

    207d98a984e119f2cf573815d86f1e0c077f7d396f04a48aa4071ec934fd33a4a7b96fcac53bf2b4b4db133e899fb1e1ab00755cf0836ec6480b60971e969054

  • SSDEEP

    3072:yA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAoRo:yzIqATVfQeV2FZalKq6jtGJWuTmd

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\8bd8b1509e108851cda3ef8e94bf38a0.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3236
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\8bd8b1509e108851cda3ef8e94bf38a0.dll,#1
      2⤵
        PID:4392
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4392 -s 688
          3⤵
          • Program crash
          PID:4996
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4392 -ip 4392
      1⤵
        PID:1380

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4392-0-0x00000000009A0000-0x00000000009A6000-memory.dmp

        Filesize

        24KB

      • memory/4392-1-0x0000000075400000-0x0000000075430000-memory.dmp

        Filesize

        192KB

      • memory/4392-3-0x00000000009A0000-0x00000000009A6000-memory.dmp

        Filesize

        24KB