Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    6406cf5b9e7e6cbddf902322bd13c02f01b6a3335fbf53d839e740469ed9fc9e

  • Size

    3.2MB

  • Sample

    240501-tree4sah5w

  • MD5

    6f1434bdc116473171a42f081f86d2e5

  • SHA1

    68dc8a913caaddbcd9dd976f478cba38935d1681

  • SHA256

    6406cf5b9e7e6cbddf902322bd13c02f01b6a3335fbf53d839e740469ed9fc9e

  • SHA512

    f7593f9d5033e816eb00eebd987a261b307443cb534763ab73c25ff640454aed06fb8651eb7a3c9a2b6750ed03891590cfa024425f948e2e87cb9950590fd70e

  • SSDEEP

    98304:ahfos5HeMop9TM2EmSgFUMwCY7BtAFBsABH3:cfHHeMop9TM2ceUXN77Ksi3

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

93.123.85.108:4782

Mutex

e14b8f59-979b-4ebf-8602-dd3c4d6c301e

Attributes
  • encryption_key

    534734397C0FA9A1D28F061AD75DF4100BFF5787

  • install_name

    Msconfig.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    msconfig.exe

  • subdirectory

    SubDir

Targets

    • Target

      6406cf5b9e7e6cbddf902322bd13c02f01b6a3335fbf53d839e740469ed9fc9e

    • Size

      3.2MB

    • MD5

      6f1434bdc116473171a42f081f86d2e5

    • SHA1

      68dc8a913caaddbcd9dd976f478cba38935d1681

    • SHA256

      6406cf5b9e7e6cbddf902322bd13c02f01b6a3335fbf53d839e740469ed9fc9e

    • SHA512

      f7593f9d5033e816eb00eebd987a261b307443cb534763ab73c25ff640454aed06fb8651eb7a3c9a2b6750ed03891590cfa024425f948e2e87cb9950590fd70e

    • SSDEEP

      98304:ahfos5HeMop9TM2EmSgFUMwCY7BtAFBsABH3:cfHHeMop9TM2ceUXN77Ksi3

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Uses the VBS compiler for execution

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks