Analysis

  • max time kernel
    19s
  • max time network
    116s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    29-06-2021 04:56

General

  • Target

    87ddd83e83ce0862ee5c02382bcec534f326e24a4d13da001ec2222a9e5bcff0.dll

  • Size

    162KB

  • MD5

    eb942aed1c19881a64e08f7da2896abc

  • SHA1

    07a2f952914968424c029e83b9b27c659a7157ed

  • SHA256

    87ddd83e83ce0862ee5c02382bcec534f326e24a4d13da001ec2222a9e5bcff0

  • SHA512

    36b435b4587bf4220cebaf85bc7b354608540a6cc34a23edfb0913df1f1b72debf8ef0e3834442fa983b7527a46c2ddc89cb4754bc38030d436d6cafee2e3d58

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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\87ddd83e83ce0862ee5c02382bcec534f326e24a4d13da001ec2222a9e5bcff0.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\87ddd83e83ce0862ee5c02382bcec534f326e24a4d13da001ec2222a9e5bcff0.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:3896

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3896-114-0x0000000000000000-mapping.dmp

  • memory/3896-115-0x00000000739D0000-0x00000000739FE000-memory.dmp

    Filesize

    184KB

  • memory/3896-117-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB