General

  • Target

    Packburpsuite23.rar

  • Size

    208.8MB

  • Sample

    250201-ck246a1ldz

  • MD5

    5efcf7a8bd877b4000b90f2ac394e6bd

  • SHA1

    bf7e9911977accdcfcfd0c3164fadc48216073ea

  • SHA256

    205fe25ce343c37bea70905bf36be8884564133e537ca8b4c2f33b7785702f8a

  • SHA512

    f74cfdbd87d5fcfb090a9ca251562d565b8ef3419d268e08f5d72d28263a7460cbb76e822110c549dba4f83ed24c9491b8c38247bb6c6c9b732b550da4d7bb77

  • SSDEEP

    6291456:Srf5A0sti5kAmJGv2Av5Iix2xEBPecCv5c3:AG0I6kAAGvBvEE5Cv5c3

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

loomis3

C2

hapansystem.hopto.org:4444

Mutex

QSR_MUTEX_0KwxSTm0dkBBRBLDt0

Attributes
  • encryption_key

    s5qjX0nnX6JZYjQaaEO1

  • install_name

    svhostt.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svhostt

  • subdirectory

    SubDir

Targets

    • Target

      Packburpsuite23.rar

    • Size

      208.8MB

    • MD5

      5efcf7a8bd877b4000b90f2ac394e6bd

    • SHA1

      bf7e9911977accdcfcfd0c3164fadc48216073ea

    • SHA256

      205fe25ce343c37bea70905bf36be8884564133e537ca8b4c2f33b7785702f8a

    • SHA512

      f74cfdbd87d5fcfb090a9ca251562d565b8ef3419d268e08f5d72d28263a7460cbb76e822110c549dba4f83ed24c9491b8c38247bb6c6c9b732b550da4d7bb77

    • SSDEEP

      6291456:Srf5A0sti5kAmJGv2Av5Iix2xEBPecCv5c3:AG0I6kAAGvBvEE5Cv5c3

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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