Analysis

  • max time kernel
    139s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2022 05:13

General

  • Target

    IDDNOMAsIvDkkklgbtq.dll

  • Size

    512KB

  • MD5

    a8310b450f4be0f4d873d743f4e1b902

  • SHA1

    3b07e8955ffd27fb919a095e0d2cb39922b59b2f

  • SHA256

    69c083542e53579cfd344f93d7109f13a676adf4d73fa41425b3b0fa1dc702e4

  • SHA512

    ccc76c2fb3e7b6271fc1cc47e1d5665709686256be7960c23f0be9e326c19b078f8015585d26f39ae6e37231101b7b44e7ada130dba0047c7990a7c0dbe23537

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\IDDNOMAsIvDkkklgbtq.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\IDDNOMAsIvDkkklgbtq.dll,#1
      2⤵
        PID:4380
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 656
          3⤵
          • Program crash
          PID:2720
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4380 -ip 4380
      1⤵
        PID:1228

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4380-130-0x0000000000000000-mapping.dmp
      • memory/4380-131-0x0000000002560000-0x0000000002566000-memory.dmp
        Filesize

        24KB

      • memory/4380-132-0x0000000075760000-0x00000000757E1000-memory.dmp
        Filesize

        516KB

      • memory/4380-134-0x0000000002560000-0x0000000002566000-memory.dmp
        Filesize

        24KB