General

  • Target

    Image Logger.bat

  • Size

    12.8MB

  • Sample

    241226-n8qxksvnc1

  • MD5

    a2e3e4286e8b22b3b021a6706b899dd7

  • SHA1

    e6179204735421c3927f27c13f9751af1dce9bd2

  • SHA256

    efd80dd8487437f58413be6e7d2da6ea866ae7626b3225dbf326e8c82c85e580

  • SHA512

    3ff5d19accd1fa6765ffc3554bb9cfe3989eee4cf226c2ce7abbaff47a1586253ab1b408f4f9e47611ea7d2415f3298b12dfada1d1987d43c2efa16aac11e3e8

  • SSDEEP

    49152:JZHKpAhg6/Ri76PuM0gcqQP+GBRa1SgA+754EU1kOeTUliFDvnrNqjdsusoj8nNc:e

Malware Config

Extracted

Family

quasar

Version

1.0.0.0

Botnet

v15.6.3 | xen

C2

studies-royal.at.ply.gg:31849

usa-departments.at.ply.gg:37274

category-in.at.ply.gg:42204

Mutex

bd62476d-8a2b-4e05-a8e5-68cc94baac4f

Attributes
  • encryption_key

    AA41DD5506DCFCA6EE3BF934CC3C9319F80E5E10

  • install_name

    .exe

  • log_directory

    $sxr-Logs

  • reconnect_delay

    5000

  • startup_key

    $sxr-seroxen

Targets

    • Target

      Image Logger.bat

    • Size

      12.8MB

    • MD5

      a2e3e4286e8b22b3b021a6706b899dd7

    • SHA1

      e6179204735421c3927f27c13f9751af1dce9bd2

    • SHA256

      efd80dd8487437f58413be6e7d2da6ea866ae7626b3225dbf326e8c82c85e580

    • SHA512

      3ff5d19accd1fa6765ffc3554bb9cfe3989eee4cf226c2ce7abbaff47a1586253ab1b408f4f9e47611ea7d2415f3298b12dfada1d1987d43c2efa16aac11e3e8

    • SSDEEP

      49152:JZHKpAhg6/Ri76PuM0gcqQP+GBRa1SgA+754EU1kOeTUliFDvnrNqjdsusoj8nNc:e

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Indicator Removal: Clear Windows Event Logs

      Clear Windows Event Logs to hide the activity of an intrusion.

    • Hide Artifacts: Hidden Window

      Windows that would typically be displayed when an application carries out an operation can be hidden.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks