Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    11-06-2022 16:49

General

  • Target

    nde67wks.dll

  • Size

    923KB

  • MD5

    b94268ab1032daba281e9d9f4407676f

  • SHA1

    36e85ba5240d9f22b6736244637484b5fa129aa3

  • SHA256

    0f01fd5896b88ced79f6f611de53a20385c7a5b2f7e443ed58bc5e449e768a29

  • SHA512

    e02c87e4a6035444a7ae0e009960e9ccdf9f7c75bb5594a555ae4b25f9b5bfb742df12cb50fa53804ed8f17823126093b262c786c8c2513d694fcffb69f20978

Malware Config

Extracted

Family

dridex

Botnet

10444

C2

146.185.170.249:443

62.75.251.60:6601

185.148.168.25:2303

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Blocklisted process makes network request 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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\nde67wks.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1496
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\nde67wks.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:2996

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2996-130-0x0000000000000000-mapping.dmp
  • memory/2996-131-0x0000000075690000-0x0000000075790000-memory.dmp
    Filesize

    1024KB

  • memory/2996-133-0x0000000075690000-0x0000000075790000-memory.dmp
    Filesize

    1024KB

  • memory/2996-132-0x0000000075690000-0x00000000756CD000-memory.dmp
    Filesize

    244KB

  • memory/2996-135-0x0000000075690000-0x0000000075790000-memory.dmp
    Filesize

    1024KB