Analysis

  • max time kernel
    140s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    06/03/2024, 00:53

General

  • Target
    b61985148cc258c8c85a62ed365acc3b.dll
  • Size 188KB
  • Sample240306-a8vc4sec9v
  • SHA256 8d01648c16d0c8147b5b10f5d3b596840b651ecaabde6ac8e91eaad700b8850f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • dridex

Botnet
  • 22201

C2
  • 103.82.248.59:443

  • 54.39.98.141:6602

  • 103.109.247.8:10443

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.

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b61985148cc258c8c85a62ed365acc3b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1540
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b61985148cc258c8c85a62ed365acc3b.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2848
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2848 -s 308
        3⤵
        • Program crash
        PID:2592

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2848-0-0x0000000075200000-0x0000000075230000-memory.dmp

        memory/2848-1-0x0000000000350000-0x0000000000356000-memory.dmp

        memory/2848-2-0x0000000075200000-0x0000000075230000-memory.dmp