Overview

overview

10

Static

static

3

SolaraBoot...ew.exe

windows10-2004-x64

10

SolaraBoot...ew.exe

windows11-ltsc_2024-x64

10

Resubmissions

12/10/2026, 17:14

261012-vsanzscz9v10

01/08/2025, 19:32

250801-x9c7jsstdy

01/08/2025, 19:27

250801-x6gqkavjy610

Sharing

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General

  • Target
    SolaraBootstrapperNew.exe
  • Size 9.1MB
  • Sample261012-vsanzscz9v
  • SHA256 564b16d0c83590f56353c44e9232b803cb99d4b66f90e824037b70e10d6ce351
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04defense_evasiondiscoveryexecutionmodulepersistenceratspywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.7.1

Botnet

  • Office04

C2

  • point-technology.gl.at.ply.gg:33185

Mutex

  • 5a0b0717-b867-48f3-9f23-5a19aa57150c

Attributes
  • encryption_key

    D2973F3069489602440049C54C37809627555190

  • install_name

    Client.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Modded Client Startup

  • subdirectory

    SubDir

Extracted

Family

  • quasar

Version

  • 1.6.6

Botnet

  • Office04

C2

  • point-technology.gl.at.ply.gg:33185

Mutex

  • 3c5244a7-5b2f-4fe6-9ad3-52e8a08573ea

Attributes
  • encryption_key

    AB3F35D407BDB741B9B0AFE0D4946AB5995E5409

  • install_name

    Client.exe

  • key_salt

    5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Pulsar Client Startup

  • subdirectory

    SubDir

Targets

    • Target
      SolaraBootstrapperNew.exe
    • Size 9.1MB
    • SHA256 564b16d0c83590f56353c44e9232b803cb99d4b66f90e824037b70e10d6ce351
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04defense_evasiondiscoveryexecutionquasarmodulepersistenceratspywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • PulsaRAT library module

      Core component of the PulsaRAT remote access trojan, implementing its command protocol for hidden remote desktop, UAC bypass, persistence, and credential theft.

      ratmodule

    • Quasar payload

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks whether UAC is enabled

      defense_evasiontrojan

    • Network Share Discovery

      Attempt to gather information on host network.

      discovery
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks