General

  • Target

    BlankGrabberBuilder.exe

  • Size

    7.1MB

  • Sample

    241216-cvmgfs1kdq

  • MD5

    41f73d46b40f8a48fba2da1cbe8ce0e5

  • SHA1

    81792f8f896e965a8c11a7ab4f5e130acd099d2c

  • SHA256

    832538e38de96f15359b7fcfc4a74e5e64a1e6c255a9a4cdd1451ab080c19ca8

  • SHA512

    f52332894c5ca533d109d158822e4af4b0447e84fe99747c2e7b9700692f656d77677598054ec368518ff45a4d3b0384585a9ce815bb375be76a685b7298aede

  • SSDEEP

    196608:KiumWQ4Zv1hhzOjmFwDRxtYSHdK34kdai7bN3m2L+BWT:2zv1hoK2pM9B3Qi4i

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Beamed Kid

C2

192.168.56.1:4782

Mutex

7596ffa8-81d2-4d4c-91ce-4a1fac3d8ad2

Attributes
  • encryption_key

    5B70B4279F1A0F275FCC61552D78BAAA381E9AC6

  • install_name

    Quasar.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    System

  • subdirectory

    SubDir

Targets

    • Target

      BlankGrabberBuilder.exe

    • Size

      7.1MB

    • MD5

      41f73d46b40f8a48fba2da1cbe8ce0e5

    • SHA1

      81792f8f896e965a8c11a7ab4f5e130acd099d2c

    • SHA256

      832538e38de96f15359b7fcfc4a74e5e64a1e6c255a9a4cdd1451ab080c19ca8

    • SHA512

      f52332894c5ca533d109d158822e4af4b0447e84fe99747c2e7b9700692f656d77677598054ec368518ff45a4d3b0384585a9ce815bb375be76a685b7298aede

    • SSDEEP

      196608:KiumWQ4Zv1hhzOjmFwDRxtYSHdK34kdai7bN3m2L+BWT:2zv1hoK2pM9B3Qi4i

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Drops file in Drivers directory

    • A potential corporate email address has been identified in the URL: 6633dd5dcff475e6fb744426_&@2x.png

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Enumerates processes with tasklist

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks