General

  • Target

    Xidrf-gen.zip

  • Size

    63.2MB

  • Sample

    250107-xend2avqfm

  • MD5

    0266aa8ca1f0cfa75a5a16a1c57af296

  • SHA1

    60877a6ab03279b2afd77dfa0566fd9c0f605da7

  • SHA256

    c56b66a485a26d6a815e6fd6d5adb7abb6a2d1c001aae3a569a76b9ffa54b735

  • SHA512

    6911861ff514fbef9bf785cabff0ccc3b2b08e8feadfacdef0406938de422859ece1d9fa64f54e8ebe477726df688c304136722a62983a6a471c0edf74cb4f7e

  • SSDEEP

    1572864:BIGssbOjOvps4Sea/AU03s9SvL07pyMS1Cg:KN+ps4SeaYU03aSv9MS1Cg

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

XIDRF

C2

127.0.0.1:4782

Mutex

VNM_MUTEX_rWPgR9AdzybeX9Wvul

Attributes
  • encryption_key

    fwVX0Jp4fmwwdCkH27Fm

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Window Startup

  • subdirectory

    SubDir

Targets

    • Target

      Xidrf-gen.zip

    • Size

      63.2MB

    • MD5

      0266aa8ca1f0cfa75a5a16a1c57af296

    • SHA1

      60877a6ab03279b2afd77dfa0566fd9c0f605da7

    • SHA256

      c56b66a485a26d6a815e6fd6d5adb7abb6a2d1c001aae3a569a76b9ffa54b735

    • SHA512

      6911861ff514fbef9bf785cabff0ccc3b2b08e8feadfacdef0406938de422859ece1d9fa64f54e8ebe477726df688c304136722a62983a6a471c0edf74cb4f7e

    • SSDEEP

      1572864:BIGssbOjOvps4Sea/AU03s9SvL07pyMS1Cg:KN+ps4SeaYU03aSv9MS1Cg

    • Contains code to disable Windows Defender

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

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • VenomRAT

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

    • Venomrat family

    • Executes dropped EXE

    • Loads dropped DLL

    • 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 v15

Tasks