General

  • Target

    defbae45ea8e71f8a50123f382f4538afc9db836de09bab316464d4793394f19

  • Size

    637KB

  • Sample

    220107-mdm2rscbc3

  • MD5

    3ae1b43ae183a646db68834676be741c

  • SHA1

    e50bb029949247457a6c9faa31e38f1fb9dfd6ae

  • SHA256

    defbae45ea8e71f8a50123f382f4538afc9db836de09bab316464d4793394f19

  • SHA512

    eb4f887d7e73f8130ae6d2f7cf27e6921a304b4a94ca50e2e747b7f057dd7d3e882556edf27dd1fdb625d0b74afc7d000702a034f258609ded97cd7940abfe70

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

KRNL

C2

127.0.0.1:4782

quadrad.duckdns.org:1604

Mutex

VNM_MUTEX_w5oFkfEj8KXNrXmElF

Attributes
  • encryption_key

    HNAC3wR1K0TyDxzlsLfi

  • install_name

    KRNL By IceBerg.exe

  • log_directory

    Logs

  • reconnect_delay

    100

  • startup_key

    KRNL By IceBerg

  • subdirectory

    Boostrapper

Targets

    • Target

      defbae45ea8e71f8a50123f382f4538afc9db836de09bab316464d4793394f19

    • Size

      637KB

    • MD5

      3ae1b43ae183a646db68834676be741c

    • SHA1

      e50bb029949247457a6c9faa31e38f1fb9dfd6ae

    • SHA256

      defbae45ea8e71f8a50123f382f4538afc9db836de09bab316464d4793394f19

    • SHA512

      eb4f887d7e73f8130ae6d2f7cf27e6921a304b4a94ca50e2e747b7f057dd7d3e882556edf27dd1fdb625d0b74afc7d000702a034f258609ded97cd7940abfe70

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

    • Quasar Payload

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • VenomRAT

      VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v6

Tasks