Analysis

  • max time kernel
    135s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    21-04-2021 15:54

General

  • Target

    2db4ef2d1cb0bf50c6566f118fae0e6a09b017b56c689f420970e06d8c43b640.dll

  • Size

    162KB

  • MD5

    3db65073644dcd296eb95fc5fdc0d47c

  • SHA1

    db6e6fe3fec8f856937f4ae335a513b57983bae0

  • SHA256

    2db4ef2d1cb0bf50c6566f118fae0e6a09b017b56c689f420970e06d8c43b640

  • SHA512

    cdd62b248db1c16c510e4dc273c997da6ee1fd4fc7cb7e284fef44f5cec856cd8460dab0502bd19e958357e6e4be7a82bae64f61174a88ffadbcb51c301d3bdf

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\2db4ef2d1cb0bf50c6566f118fae0e6a09b017b56c689f420970e06d8c43b640.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\2db4ef2d1cb0bf50c6566f118fae0e6a09b017b56c689f420970e06d8c43b640.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:844

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/844-60-0x0000000000000000-mapping.dmp

  • memory/844-61-0x0000000076691000-0x0000000076693000-memory.dmp

    Filesize

    8KB

  • memory/844-62-0x0000000074DC0000-0x0000000074DEE000-memory.dmp

    Filesize

    184KB

  • memory/844-64-0x00000000000D0000-0x00000000000D6000-memory.dmp

    Filesize

    24KB