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Analysis

  • max time kernel
    143s
  • 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
    22/12/2023, 12:18

General

  • Target

    8b839bb135e3607285fd75d88a81b685.dll

  • Size

    184KB

  • MD5

    8b839bb135e3607285fd75d88a81b685

  • SHA1

    44c73771d612639ef6d24f7f666f51338c95a439

  • SHA256

    735cc85ea368f4ed7f5331bb0d744e280bdee4f2bbf961239b3440106edc54a8

  • SHA512

    fae210df4452af2610bceda1547c8ea09d8fe862bf081c88772c3a670e2a7de66fb238dc258a9a6cba34101b7f27ba48479a118b4d0eb8f0b4b4ff30f58fdac8

  • SSDEEP

    3072:dgkQz1PuOprc+kq6VNOe3qbarVEpZlcbBacS9nOdgRdA4l:sPFkq6zOe5ilSanOCd

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

103.75.201.2:443

158.223.1.108:6225

165.22.28.242:4664

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\8b839bb135e3607285fd75d88a81b685.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\8b839bb135e3607285fd75d88a81b685.dll,#1
      2⤵
        PID:316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 316 -s 616
          3⤵
          • Program crash
          PID:2696
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 316 -ip 316
      1⤵
        PID:4152

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/316-0-0x0000000075210000-0x0000000075240000-memory.dmp

        Filesize

        192KB

      • memory/316-1-0x0000000001220000-0x0000000001226000-memory.dmp

        Filesize

        24KB