Analysis

  • max time kernel
    147s
  • max time network
    153s
  • 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 23:01

General

  • Target

    b35164c22aa68fe0c30ef09532f315e8.dll

  • Size

    188KB

  • MD5

    b35164c22aa68fe0c30ef09532f315e8

  • SHA1

    3fde48fe078921fb2a845c0c8fd7e99b4c848949

  • SHA256

    62b68f5d92392ecfe5ab2a10cbe13dd406fa728840e3aab76b7602b71d28e538

  • SHA512

    97861d1b0d93b0801dae0e41998befc17da9d436415809aeb29c8ee47db2e0f231eba2d14d29af3b4da60f413b05c4c5210d6137e5afd6685f47fbce4e522ad7

  • SSDEEP

    3072:8A8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAooo:8zIqATVfQeV2FZalKq6jtGJWuTmd

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 2 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\b35164c22aa68fe0c30ef09532f315e8.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b35164c22aa68fe0c30ef09532f315e8.dll,#1
      2⤵
        PID:3532
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 688
          3⤵
          • Program crash
          PID:3568
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3532 -ip 3532
      1⤵
        PID:4156

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3532-1-0x0000000075280000-0x00000000752B0000-memory.dmp

        Filesize

        192KB

      • memory/3532-0-0x0000000000C50000-0x0000000000C56000-memory.dmp

        Filesize

        24KB

      • memory/3532-2-0x0000000075280000-0x00000000752B0000-memory.dmp

        Filesize

        192KB