Analysis

  • max time kernel
    27s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    29-06-2021 02:31

General

  • Target

    422c2f3df9fc4c98b66b8c52f8a99b66bf45e4a6439e826c0a149125ba79ebce.dll

  • Size

    158KB

  • MD5

    eeac3df3d7f842665a440f5a3a68d4ea

  • SHA1

    2d1ca4b218cdfd927126d7ce0605f526531d0e48

  • SHA256

    422c2f3df9fc4c98b66b8c52f8a99b66bf45e4a6439e826c0a149125ba79ebce

  • SHA512

    caa83bdca8845d1b4886b69c9b079bf40a79fd43660d972a9935d9ce24c4e0f509abdb62e16b36a531f68f52c9f4b5c88b60d86b42b9646a9acd7e7f282fc108

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

8.210.53.215:443

72.249.22.245:2303

188.40.137.206:8172

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.

  • 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\422c2f3df9fc4c98b66b8c52f8a99b66bf45e4a6439e826c0a149125ba79ebce.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3716
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\422c2f3df9fc4c98b66b8c52f8a99b66bf45e4a6439e826c0a149125ba79ebce.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:3324

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3324-114-0x0000000000000000-mapping.dmp

  • memory/3324-115-0x0000000073560000-0x000000007358D000-memory.dmp

    Filesize

    180KB

  • memory/3324-117-0x0000000002C60000-0x0000000002DAA000-memory.dmp

    Filesize

    1.3MB