Analysis

  • max time kernel
    92s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/09/2024, 23:38

General

  • Target
    951e85e8d0e0cd2d77fd631d6650aef0N.dll
  • Size 188KB
  • Sample240904-3mnmnaydll
  • SHA256 244d9304131fcf7bdc8984421465e718cb461c3870a385491e01713e95b8c94a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • dridex

Botnet
  • 22201

C2
  • 103.87.173.60:443

  • 45.32.243.209:8116

  • 207.180.208.54:4664

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
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\951e85e8d0e0cd2d77fd631d6650aef0N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4404
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\951e85e8d0e0cd2d77fd631d6650aef0N.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4632
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4632 -s 692
        3⤵
        • Program crash
        PID:1504
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4632 -ip 4632
    1⤵
      PID:3232

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/4632-0-0x0000000001450000-0x0000000001456000-memory.dmp

          memory/4632-1-0x0000000074950000-0x0000000074980000-memory.dmp

          memory/4632-3-0x0000000001450000-0x0000000001456000-memory.dmp