Overview

overview

10

Static

static

3

brr.exe

windows7-x64

10

brr.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    brr.exe

  • Size

    827KB

  • Sample

    240817-vnxb7azcmj

  • MD5

    92867f5de7d9de203c1f9f4781961863

  • SHA1

    103fa7ef6a97862f568d410e7607e34f1c41da18

  • SHA256

    4b90d4fb520d1deda7f182e1a19e7750979086bfbae6e2b44b276c8130e7c0c8

  • SHA512

    818208e48ebc2797645dce2d79545215e5c4d32bed0ac65ae14f72d388a6179ebf2268690ec6c8f6923ef1a57d71bebc9e26e1906df16843b729f30b06746f34

  • SSDEEP

    12288:xMSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9nKas/fHmwj:xnsJ39LyjbJkQFMhmC+6GD9KTuA

Score
10/10
asyncratxredcrownbackdoordiscoverypersistencerat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Crown

C2

127.0.0.1:9090

127.0.0.1:5013

147.185.221.22:9090

147.185.221.22:5013
Mutex

vopltdrmzkidmoli

Attributes
  • delay

    1

  • install

    true

  • install_file

    Windows.exe

  • install_folder

    %Temp%

aes.plain

Extracted

Family

xred

C2

xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Targets

    • Target

      brr.exe

    • Size

      827KB

    • MD5

      92867f5de7d9de203c1f9f4781961863

    • SHA1

      103fa7ef6a97862f568d410e7607e34f1c41da18

    • SHA256

      4b90d4fb520d1deda7f182e1a19e7750979086bfbae6e2b44b276c8130e7c0c8

    • SHA512

      818208e48ebc2797645dce2d79545215e5c4d32bed0ac65ae14f72d388a6179ebf2268690ec6c8f6923ef1a57d71bebc9e26e1906df16843b729f30b06746f34

    • SSDEEP

      12288:xMSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9nKas/fHmwj:xnsJ39LyjbJkQFMhmC+6GD9KTuA

    Score
    10/10
    asyncratxredcrownbackdoordiscoverypersistencerat

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

      ratasyncrat

    • Asyncrat family

      asyncrat

    • Xred

      Xred is backdoor written in Delphi.

      backdoorxred

    • Xred family

      xred

    • Async RAT payload

      rat

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks