Overview

overview

10

Static

static

1

cloudflare.bat

windows7-x64

8

cloudflare.bat

windows10-2004-x64

10

Sharing

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General

  • Target

    cloudflare.bat

  • Size

    1.6MB

  • Sample

    250123-yjmtqs1lfx

  • MD5

    d7ef2415ae2b53c9cc8d960f332b2fc2

  • SHA1

    5ee9e9075d7eff88b9b6f6640dd23b04d3d89bf8

  • SHA256

    d09f2f0f47441da499f40328373ea30f5b2fba8f75f8d84e1df54f0d39c363e8

  • SHA512

    0d0b614e2f6c25408d3e35679d41dd9a96f90b54ffd373db1e5be1809d8384370baf391b0c55c6769b730d3ca319efcc052a3ebf77cf5cfb502dac66fd2489e4

  • SSDEEP

    24576:6dbChi2BlJAy2y618+L24nMTz0ZpAsb1EwG5M1XxWMkp2b8DU+owr4SeBlKcvREH:9i2Bl+2TzZw5XMe4DU+zrSl+v

Score
10/10
quasarexploreexecutionspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

explore

C2

45.88.186.152:4782

Mutex

4b5ff9f7-66f8-4c52-adcb-b84eb3e09f69

Attributes
  • encryption_key

    0D83B228073938065AB8FEE60BD7542CA8D42A20

  • install_name

    Onedrive.exe

  • log_directory

    Logs

  • reconnect_delay

    300

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      cloudflare.bat

    • Size

      1.6MB

    • MD5

      d7ef2415ae2b53c9cc8d960f332b2fc2

    • SHA1

      5ee9e9075d7eff88b9b6f6640dd23b04d3d89bf8

    • SHA256

      d09f2f0f47441da499f40328373ea30f5b2fba8f75f8d84e1df54f0d39c363e8

    • SHA512

      0d0b614e2f6c25408d3e35679d41dd9a96f90b54ffd373db1e5be1809d8384370baf391b0c55c6769b730d3ca319efcc052a3ebf77cf5cfb502dac66fd2489e4

    • SSDEEP

      24576:6dbChi2BlJAy2y618+L24nMTz0ZpAsb1EwG5M1XxWMkp2b8DU+owr4SeBlKcvREH:9i2Bl+2TzZw5XMe4DU+zrSl+v

    Score
    10/10
    executionquasarexplorespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

      execution

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks