Resubmissions

21/04/2026, 15:49

260421-s9d2macw2w10

03/04/2026, 15:20

260403-sqs2fag14v10

Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    03/04/2026, 15:20

General

  • Target
    pulsetrack.exe
  • Size 3.5MB
  • Sample260403-sqs2fag14v
  • SHA256 4bdd92ce7d79c0ed576d22098cb1aa10a9a73e243dc335297081a787d4753214
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • quasar

Version
  • 1.4.1

Botnet
  • pulsetrack

C2
  • dot.sa.com:4782

  • dot.sa.com:443

  • dot.sa.com:8888

  • dot.sa.com:8848

  • dot.sa.com:8080

  • tasawoq.it.com:4782

  • tasawoq.it.com:443

  • tasawoq.it.com:8888

  • tasawoq.it.com:8848

  • tasawoq.it.com:8080

Mutex
  • 94e76031-936f-4a3e-9754-9aa3b135f801

Attributes
  • encryption_key

    2DA8E1B5D18EAA4561218BCAF7CC51C403CE73ED

  • install_name

    pulsetrack.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    pulsetrack

  • subdirectory

    C:\Users\[User]\Documents\PulseTrack\pulsetrack.exe

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\pulsetrack.exe
    "C:\Users\Admin\AppData\Local\Temp\pulsetrack.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "pulsetrack" /sc ONLOGON /tr "C:\Users\[User]\Documents\PulseTrack\pulsetrack.exe\pulsetrack.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1776
    • C:\Users\[User]\Documents\PulseTrack\pulsetrack.exe\pulsetrack.exe
      "C:\Users\[User]\Documents\PulseTrack\pulsetrack.exe\pulsetrack.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4352
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "pulsetrack" /sc ONLOGON /tr "C:\Users\[User]\Documents\PulseTrack\pulsetrack.exe\pulsetrack.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4576
  • C:\Users\[User]\Documents\PulseTrack\pulsetrack.exe\pulsetrack.exe
    C:\Users\[User]\Documents\PulseTrack\pulsetrack.exe\pulsetrack.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:5300

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        pulsetrack.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\pulsetrack.exe.log
        • Size 1KB
        • SHA256 5d8af3c7519874ed42a0d74ee559ae30d9cc6930aef213079347e2b47092c210
        • MD5 SHA1 SHA512 TLSH

        pulsetrack.exe

        • Path C:\Users\[User]\Documents\PulseTrack\pulsetrack.exe\pulsetrack.exe
        • Size 3.5MB
        • SHA256 4bdd92ce7d79c0ed576d22098cb1aa10a9a73e243dc335297081a787d4753214
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1964-0-0x0000000000BF0000-0x0000000000F6E000-memory.dmp

        memory/1964-1-0x000000001BC60000-0x000000001BC70000-memory.dmp

        memory/1964-7-0x000000001BB20000-0x000000001BC0A000-memory.dmp

        memory/1964-8-0x000000001BAE0000-0x000000001BAF2000-memory.dmp

        memory/4352-10-0x0000000003310000-0x0000000003320000-memory.dmp

        memory/4352-13-0x000000001C780000-0x000000001C832000-memory.dmp

        memory/4352-12-0x000000001C670000-0x000000001C6C0000-memory.dmp

        memory/4352-17-0x00000000032B0000-0x00000000032C2000-memory.dmp

        memory/4352-18-0x0000000003310000-0x0000000003320000-memory.dmp

        memory/4352-16-0x0000000003360000-0x000000000344A000-memory.dmp

        memory/5300-15-0x000000001BEB0000-0x000000001BEC2000-memory.dmp

        memory/5300-14-0x000000001BFF0000-0x000000001C0DA000-memory.dmp