Analysis

  • max time kernel
    111s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    19-05-2022 02:29

General

  • Target

    ZKMEkleQqDEiaJkkklgbtq.dll

  • Size

    512KB

  • MD5

    2af8d90b7f3fac6170869de920b2df72

  • SHA1

    7376431005032f186e6c6909e31c1399a6c171d5

  • SHA256

    9be19f07e2a06af1c622c9c6b7f139b4328f6baf971a7964844447bcff7e1814

  • SHA512

    c58941f4e5634ffb913d15d97e8b869e1e365fed5d408ecf73c0539f00a25c4ea2959c11d819ccea71da855dbf83daf1b40d83d71d286f2ecb3b51cc2d01fee2

Malware Config

Extracted

Family

dridex

Botnet

22203

C2

51.159.52.196:443

134.209.247.135:6602

194.233.68.48:5228

89.31.56.58:593

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\ZKMEkleQqDEiaJkkklgbtq.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2560
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ZKMEkleQqDEiaJkkklgbtq.dll,#1
      2⤵
        PID:3840
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3840 -s 656
          3⤵
          • Program crash
          PID:208
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3840 -ip 3840
      1⤵
        PID:2480

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3840-130-0x0000000000000000-mapping.dmp
      • memory/3840-131-0x0000000074E30000-0x0000000074EB1000-memory.dmp
        Filesize

        516KB

      • memory/3840-133-0x00000000001B0000-0x00000000001B6000-memory.dmp
        Filesize

        24KB