Analysis

  • max time kernel
    91s
  • max time network
    110s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    28-06-2022 14:54

General

  • Target

    Dridex_f68d1f0f0d98e40cd449b394d503d508f4933bbd513bf543579fb787a6a2c878.dll

  • Size

    532KB

  • MD5

    20a9ac804323cb3f25623e49ca3cef91

  • SHA1

    40b17cf257ae66c1d4f26f2b0a86904d903f67a9

  • SHA256

    f68d1f0f0d98e40cd449b394d503d508f4933bbd513bf543579fb787a6a2c878

  • SHA512

    77bb331b8450d149db620e21da7b9413a2bef2a47d4894af54bfa17a0d5cb66d4a8f1e1294e4a2d3ebb811315d84b28e103bf4e5a6e6dac80aea6e88afbfa4cd

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

144.91.122.102:443

85.10.248.28:593

185.4.135.27:5228

80.211.3.13:8116

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\Dridex_f68d1f0f0d98e40cd449b394d503d508f4933bbd513bf543579fb787a6a2c878.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4240
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\Dridex_f68d1f0f0d98e40cd449b394d503d508f4933bbd513bf543579fb787a6a2c878.dll,#1
      2⤵
        PID:4204
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4204 -s 624
          3⤵
          • Program crash
          PID:4988
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4204 -ip 4204
      1⤵
        PID:5012

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/4204-130-0x0000000000000000-mapping.dmp

      • memory/4204-131-0x0000000074F00000-0x0000000074F87000-memory.dmp

        Filesize

        540KB

      • memory/4204-133-0x0000000001390000-0x0000000001396000-memory.dmp

        Filesize

        24KB