Analysis

  • max time kernel
    91s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11-06-2022 17:13

General

  • Target

    YPLRekkklgbtq.dll

  • Size

    512KB

  • MD5

    00f420f88d53dca440288d6ff4958124

  • SHA1

    df18658f05cb9b0331b36ffbc6738a3bf86b7904

  • SHA256

    99b02ee3c8256eb95c745119609a976ced1d887e6475f6bd3768fb9711e75554

  • SHA512

    cbd3f2a60a51a8139837e3f0c2f5193d5e58a1e04e1aa0c7ee74a722e6e2f4fc75ed4f5d0e069eff96a42fc11483d0ed42781a9f443d58fa75d9f179395bbf98

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\YPLRekkklgbtq.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:816
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\YPLRekkklgbtq.dll,#1
      2⤵
        PID:3988
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3988 -s 652
          3⤵
          • Program crash
          PID:2324
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3988 -ip 3988
      1⤵
        PID:1376

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3988-130-0x0000000000000000-mapping.dmp
      • memory/3988-131-0x0000000074F00000-0x0000000074F81000-memory.dmp
        Filesize

        516KB

      • memory/3988-133-0x0000000000BF0000-0x0000000000BF6000-memory.dmp
        Filesize

        24KB