General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240404-vw593add7w

  • MD5

    bd01e65404d950533322dc7e5de0b162

  • SHA1

    2673c4d24f707191f79e85ce936a616c8e7bb7c7

  • SHA256

    4dbe62432c0ef53118b9efc6cb36ea70d0050091ceb592cb6da8176f44e25f76

  • SHA512

    b64cc6115436b85a05baae3f829c92fcdd25a504758fe7f91993305768167dcaef9d46607f6366c796e9fe57b314e8f5a2e647a2693003877bb565ee0f93c21e

  • SSDEEP

    49152:Zvkt62XlaSFNWPjljiFa2RoUYIjARJ6vbR3LoGdJCuTHHB72eh2NT:Zv462XlaSFNWPjljiFXRoUYIjARJ6B

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

149.0.133.66:4782

Mutex

cd138a2a-7444-407f-82fe-708b26f61ab0

Attributes
  • encryption_key

    7F14A750B3F8A6840A227085ABF4277450589609

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Update

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      bd01e65404d950533322dc7e5de0b162

    • SHA1

      2673c4d24f707191f79e85ce936a616c8e7bb7c7

    • SHA256

      4dbe62432c0ef53118b9efc6cb36ea70d0050091ceb592cb6da8176f44e25f76

    • SHA512

      b64cc6115436b85a05baae3f829c92fcdd25a504758fe7f91993305768167dcaef9d46607f6366c796e9fe57b314e8f5a2e647a2693003877bb565ee0f93c21e

    • SSDEEP

      49152:Zvkt62XlaSFNWPjljiFa2RoUYIjARJ6vbR3LoGdJCuTHHB72eh2NT:Zv462XlaSFNWPjljiFXRoUYIjARJ6B

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks