General

  • Target

    Solara Executor.exe

  • Size

    18.7MB

  • Sample

    250131-fggwlaylgx

  • MD5

    20f922eb17efc661c32b9af7123cc2e3

  • SHA1

    cc225ff5794975e66fcbd7f6a6a0cf3c780fd488

  • SHA256

    8d7559b7b2641f0eddca0905f3ebd59dbe93ebf5d44603227480fbcbe69ed82c

  • SHA512

    6c332727ff87f432bd7b8f862e6155ff748d687a2da55726c1055f4b655d6ec43a4d3475a7f8be39302efe5905b5a8164bd8113598c1a0af5b85aa47071153fd

  • SSDEEP

    192:8yihNYoCYedOzbD/kyL7F9DKCvzlKHmCYOF6Qb/:8hmoCJdOzbrkyF1RKGCLAk

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

svhost32

C2

87.228.57.81:4782

Mutex

47b71fc0-b2c4-4112-b97a-39385a5399c1

Attributes
  • encryption_key

    19A0FAF8459F69650B5965C225752D425C429EEC

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svhost32

  • subdirectory

    SubDir

Targets

    • Target

      Solara Executor.exe

    • Size

      18.7MB

    • MD5

      20f922eb17efc661c32b9af7123cc2e3

    • SHA1

      cc225ff5794975e66fcbd7f6a6a0cf3c780fd488

    • SHA256

      8d7559b7b2641f0eddca0905f3ebd59dbe93ebf5d44603227480fbcbe69ed82c

    • SHA512

      6c332727ff87f432bd7b8f862e6155ff748d687a2da55726c1055f4b655d6ec43a4d3475a7f8be39302efe5905b5a8164bd8113598c1a0af5b85aa47071153fd

    • SSDEEP

      192:8yihNYoCYedOzbD/kyL7F9DKCvzlKHmCYOF6Qb/:8hmoCJdOzbrkyF1RKGCLAk

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks