Analysis

  • max time kernel
    237s
  • max time network
    259s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    26-06-2022 05:36

General

  • Target

    hu8y3z.dll

  • Size

    476KB

  • MD5

    cdf3b326951bd5cd55254e5599302183

  • SHA1

    217316d0d637d818e2d2d22397222d715ed7b64c

  • SHA256

    d0681c030a51811edc6f19b6cc418043ef928e251c681cdf75a05949f932340b

  • SHA512

    e7d0f735dfd665199acbc0a0d409d5494ab9649cd97809cf7727aa8d86f2695fa516f42ad9943d59ff1754629900590081c2d63c38cfc6a856b6a4902f600071

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

23.246.204.126:443

151.106.39.36:8116

103.124.144.123:6891

172.105.78.60:4664

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\hu8y3z.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1028
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\hu8y3z.dll,#1
      2⤵
        PID:2712
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2712 -s 700
          3⤵
          • Program crash
          PID:4896
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 2712 -ip 2712
      1⤵
        PID:4428

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2712-130-0x0000000000000000-mapping.dmp

      • memory/2712-131-0x0000000075710000-0x0000000075789000-memory.dmp

        Filesize

        484KB

      • memory/2712-133-0x0000000000770000-0x0000000000776000-memory.dmp

        Filesize

        24KB