General

  • Target

    39234b4b1387d417161e87d99f46f5d4.exe

  • Size

    3.2MB

  • Sample

    241124-t8d6nsymft

  • MD5

    39234b4b1387d417161e87d99f46f5d4

  • SHA1

    1b9239eea2e7cbf721cc4b71a7397ea49d3d0348

  • SHA256

    6c53c6883113580b6118856a433c5b2fb49a208e33d2faedb77d1e8609919af9

  • SHA512

    0afaf23be317dafb306365e21134a00aeb650b5bb1749d8e65f9361a67200c417c042233704f01628609ca3f2c2ed9295cdcb0b945a74b99ef9e1dee541a3817

  • SSDEEP

    49152:lnvnI22SsaNYfdPBldt698dBcjHGcHZmzO8oGdG6THHB72eh2NT:lnvI22SsaNYfdPBldt6+dBcjHGcHQ

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

DDNS

C2

193.161.193.99:32471

Mutex

807f3187-d087-4fff-beff-e73293a32af8

Attributes
  • encryption_key

    81A0C14D4C705B3C678E573C849DE7F6A3671A8B

  • install_name

    jusched.exe

  • log_directory

    CachedLogs

  • reconnect_delay

    3000

  • startup_key

    Java Update Scheduler

  • subdirectory

    Java

Targets

    • Target

      39234b4b1387d417161e87d99f46f5d4.exe

    • Size

      3.2MB

    • MD5

      39234b4b1387d417161e87d99f46f5d4

    • SHA1

      1b9239eea2e7cbf721cc4b71a7397ea49d3d0348

    • SHA256

      6c53c6883113580b6118856a433c5b2fb49a208e33d2faedb77d1e8609919af9

    • SHA512

      0afaf23be317dafb306365e21134a00aeb650b5bb1749d8e65f9361a67200c417c042233704f01628609ca3f2c2ed9295cdcb0b945a74b99ef9e1dee541a3817

    • SSDEEP

      49152:lnvnI22SsaNYfdPBldt698dBcjHGcHZmzO8oGdG6THHB72eh2NT:lnvI22SsaNYfdPBldt6+dBcjHGcHQ

    • 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

MITRE ATT&CK Enterprise v15

Tasks