General

  • Target

    Psloramyra.ps1.ps1

  • Size

    2.1MB

  • Sample

    241121-jh2tyavjam

  • MD5

    032ea6f45fdd2fa1bd9b6cb5f425dc54

  • SHA1

    aaac83baf4a939a4c3b9ff5a16dbcb472cab9592

  • SHA256

    5cc8c3c4d011cdbe7306dfb8ba52b14909ed06db2c1a465c31cc59e6f532cb22

  • SHA512

    222ca7941b7df2d2e4d7310a557cc6cdb43c33368d9632610b428b1a117a5c272504dae677216b678e4c65887f779f60078dd6096a1280aa834b1a3fcb97c379

  • SSDEEP

    6144:ccVzJb1d4aU/hQVBJ2A7Is2Csr1l5mH9OdHUb3ngo1:v

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

ronymahmoud.casacam.net:4782

seznam.hopto.org:4782

Mutex

QSR_MUTEX_mn85pQSh0eqrA3kPek

Attributes
  • encryption_key

    EjggXOgdqRrj8wGQ7mTy

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Psloramyra.ps1.ps1

    • Size

      2.1MB

    • MD5

      032ea6f45fdd2fa1bd9b6cb5f425dc54

    • SHA1

      aaac83baf4a939a4c3b9ff5a16dbcb472cab9592

    • SHA256

      5cc8c3c4d011cdbe7306dfb8ba52b14909ed06db2c1a465c31cc59e6f532cb22

    • SHA512

      222ca7941b7df2d2e4d7310a557cc6cdb43c33368d9632610b428b1a117a5c272504dae677216b678e4c65887f779f60078dd6096a1280aa834b1a3fcb97c379

    • SSDEEP

      6144:ccVzJb1d4aU/hQVBJ2A7Is2Csr1l5mH9OdHUb3ngo1:v

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Checks computer location settings

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks