General

  • Target

    08827299.exe

  • Size

    3.1MB

  • Sample

    230529-kbv89aaf99

  • MD5

    6584be6ee6ef26f3636531c0e3f41cee

  • SHA1

    e5291dc84bd32fed5831eafc33473ccdaf09ac16

  • SHA256

    716153d5958b307c96be985da422552195800586967911ec5a69d4aa3e7236e7

  • SHA512

    c2328165200248dd5aa964e8f16872a5dffddc079c958b0b1fef95959030637757af98eb8ebe768aaf96772e5f8592caf57f331b1e94eaa9834ca636c749dab6

  • SSDEEP

    49152:Kvgt62XlaSFNWPjljiFa2RoUYIT9OTj81JdLoGnT07THHB72eh2NT:KvM62XlaSFNWPjljiFXRoUYIyjOl

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

ReServices

C2

185.65.134.175:55498

Mutex

86e242cc-399d-4e30-a743-e89f0418f106

Attributes
  • encryption_key

    B451C26057A2AEFC83990793720D2316EA48C49A

  • install_name

    renservice.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    renservice

  • subdirectory

    servicerenk

Targets

    • Target

      08827299.exe

    • Size

      3.1MB

    • MD5

      6584be6ee6ef26f3636531c0e3f41cee

    • SHA1

      e5291dc84bd32fed5831eafc33473ccdaf09ac16

    • SHA256

      716153d5958b307c96be985da422552195800586967911ec5a69d4aa3e7236e7

    • SHA512

      c2328165200248dd5aa964e8f16872a5dffddc079c958b0b1fef95959030637757af98eb8ebe768aaf96772e5f8592caf57f331b1e94eaa9834ca636c749dab6

    • SSDEEP

      49152:Kvgt62XlaSFNWPjljiFa2RoUYIT9OTj81JdLoGnT07THHB72eh2NT:KvM62XlaSFNWPjljiFXRoUYIyjOl

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

System Information Discovery

1
T1082

Query Registry

1
T1012

Tasks