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 06:37

General

  • Target

    b1755081724f6e35bd47b8a290de75fe.dll

  • Size

    188KB

  • MD5

    b1755081724f6e35bd47b8a290de75fe

  • SHA1

    24880e229719f7e9dfddcc4579e8b87550d3cf51

  • SHA256

    f00edb8e5872b2f90108c119329e296f5c5bd5c22a3777ee5a332a97b9f76b2a

  • SHA512

    5251c4ffe383e70626be086a4f77f36b3e1cb54de51a2ef77fa20aa5bf16cd0bf64bea891622a3862e36b86e447108587020a8c66ca04ef84ff87b7c18ad54da

  • SSDEEP

    3072:NA8JmK7ATVfQeVqNFZa/9KzMXJ6jTFDlAwqWut5KZMzfeAAAojo:NzIqATVfQeV2FZalKq6jtGJWuTmd

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\b1755081724f6e35bd47b8a290de75fe.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b1755081724f6e35bd47b8a290de75fe.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2092
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 300
        3⤵
        • Program crash
        PID:2668

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2092-0-0x0000000074F90000-0x0000000074FC0000-memory.dmp

    Filesize

    192KB

  • memory/2092-1-0x0000000000440000-0x0000000000446000-memory.dmp

    Filesize

    24KB