Analysis

  • max time kernel
    89s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    04/03/2021, 00:35

General

  • Target
    5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea.dll
  • Size 196KB
  • Sample210304-tytrgp2ren
  • SHA256 5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • dridex

Botnet
  • 111

C2
  • 37.247.35.132:443

  • 50.243.30.51:6601

  • 162.241.204.234:6516

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Loader 2 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Blocklisted process makes network request 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:584
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\5d367a557fb4832d94adb726cac537fc967db49abbcefb41f9dc64b7cd6f4eea.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:4060

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/4060-3-0x00000000737C0000-0x00000000737F3000-memory.dmp

        memory/4060-4-0x00000000023F0000-0x00000000023F6000-memory.dmp

        memory/4060-5-0x00000000737C0000-0x00000000737DF000-memory.dmp