Analysis

  • max time kernel
    140s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-01-2024 07:38

General

  • Target

    55de3b55003ab92e521d25b55335ced4.dll

  • Size

    175KB

  • MD5

    55de3b55003ab92e521d25b55335ced4

  • SHA1

    73a6f552cadc5fa9809ea6cd0c4e799aba74af66

  • SHA256

    0b32835f121d563857dc69b69ddfdd56dbd6ce93d7d6dce074891cf1c16e96e5

  • SHA512

    eed460ffcc0d57a9867dc43e872562c4cd5eb2ccd4eddc173b91241ee07c4575c8eb3c221868445a6072f3ba41b6cd1ece27847a40acc1c0c6dffb939a0db199

  • SSDEEP

    3072:7CAOe6ths2hyT0DzJfN3ZKU3YkmN5Sw4Q2kUl59Pn9ZbAAW0f3:7CAOem/DzJhok45X4HP3b

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

46.55.222.10:443

104.248.178.90:4664

173.212.243.155:7002

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\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\55de3b55003ab92e521d25b55335ced4.dll,#1
    1⤵
      PID:3256
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3256 -s 612
        2⤵
        • Program crash
        PID:532
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\55de3b55003ab92e521d25b55335ced4.dll,#1
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1344
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3256 -ip 3256
      1⤵
        PID:440

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3256-2-0x0000000000640000-0x0000000000646000-memory.dmp

        Filesize

        24KB

      • memory/3256-0-0x0000000074E60000-0x0000000074E90000-memory.dmp

        Filesize

        192KB

      • memory/3256-3-0x0000000074E60000-0x0000000074E90000-memory.dmp

        Filesize

        192KB