Analysis

  • max time kernel
    17s
  • max time network
    118s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    15/06/2021, 15:20

General

  • Target

    31da7a176c4645fcb7e59b4c51ba1834ff6df14caafc70263c8f348af7f87e2f.dll

  • Size

    170KB

  • MD5

    af3a0ab02e0d6fbeb2390e545e13c7a3

  • SHA1

    808cdb6515091948ff9b4fd92d67b459d0d37873

  • SHA256

    31da7a176c4645fcb7e59b4c51ba1834ff6df14caafc70263c8f348af7f87e2f

  • SHA512

    39bc59394c3d90cbe588eadf98c060c430bb2edb29221a37c1fe0150a41ba2bf321f0d5af7229e3db6946f350a7bc492454e1d3495eb3993d8090c11b94e709d

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

128.199.200.38:443

192.163.233.216:6601

43.229.206.244:4125

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 behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\31da7a176c4645fcb7e59b4c51ba1834ff6df14caafc70263c8f348af7f87e2f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4444
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\31da7a176c4645fcb7e59b4c51ba1834ff6df14caafc70263c8f348af7f87e2f.dll,#1
      2⤵
        PID:4468
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 680
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1016

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          • memory/4468-115-0x0000000074290000-0x00000000742C0000-memory.dmp

            Filesize

            192KB

          • memory/4468-117-0x0000000001020000-0x0000000001043000-memory.dmp

            Filesize

            140KB