Analysis

  • max time kernel
    141s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-03-2024 11:25

General

  • Target

    b20218683df7fb4957e0c9e4842c8043.dll

  • Size

    188KB

  • MD5

    b20218683df7fb4957e0c9e4842c8043

  • SHA1

    5bf506c80bff91c84c9bd9f342e520a39bcb42c9

  • SHA256

    0f311118268df476a1e31fd7cae4e7b8fe5ae073cf5072ad2203ef6e55d1c9a7

  • SHA512

    393cfb36295ad8c32163ef4abab5c1b4c7bda5629704d196484b2a99cf406828bc63e880c2740c9605ecd1537a6d2a6bb944fc2421da74e968a8bac1cab6fff5

  • SSDEEP

    3072:FA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAoXo:FzIqATVfQeV2FZalKq6jtGJWuTmd

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 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b20218683df7fb4957e0c9e4842c8043.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2756
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b20218683df7fb4957e0c9e4842c8043.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1628
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1628 -s 300
        3⤵
        • Program crash
        PID:792

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1628-1-0x0000000074E10000-0x0000000074E40000-memory.dmp

    Filesize

    192KB

  • memory/1628-0-0x0000000000220000-0x0000000000226000-memory.dmp

    Filesize

    24KB

  • memory/1628-5-0x0000000000220000-0x0000000000226000-memory.dmp

    Filesize

    24KB