General

  • Target

    4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe

  • Size

    2.6MB

  • Sample

    250115-3jaavs1mek

  • MD5

    525b2fd46d2aebd8acb6bd4200c79c70

  • SHA1

    f792a76e6223fabbef5060c8e4fd80cd16ec061d

  • SHA256

    4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3

  • SHA512

    4d658a6c3b822c45d8ecaafffd400bf21295703020b61a1a0b57d04a0e1cdc16d7d72bd378d1bee8d44952cd687c83bb6a4e2e6d65c25104a87aa9b6a4d8f04d

  • SSDEEP

    49152:gnsHyjtk2MYC5GDnYolY+iOo7/PpGpL0oh6jgvZ:gnsmtk2aDoCOqpG1fh6jgR

Malware Config

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

      4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3N.exe

    • Size

      2.6MB

    • MD5

      525b2fd46d2aebd8acb6bd4200c79c70

    • SHA1

      f792a76e6223fabbef5060c8e4fd80cd16ec061d

    • SHA256

      4b9a374c136502529bcafeb728a58a27bd0407fb839add8276fbb15004b50ed3

    • SHA512

      4d658a6c3b822c45d8ecaafffd400bf21295703020b61a1a0b57d04a0e1cdc16d7d72bd378d1bee8d44952cd687c83bb6a4e2e6d65c25104a87aa9b6a4d8f04d

    • SSDEEP

      49152:gnsHyjtk2MYC5GDnYolY+iOo7/PpGpL0oh6jgvZ:gnsmtk2aDoCOqpG1fh6jgR

    • Modifies WinLogon for persistence

    • Modifies visiblity of hidden/system files in Explorer

    • Xred

      Xred is backdoor written in Delphi.

    • Xred family

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks