Overview

overview

10

Static

static

10

Mas valores.exe

windows10-ltsc 2021-x64

10

Analysis

  • max time kernel
    1046s
  • max time network
    1053s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241023-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    04-11-2024 18:26

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General

  • Target

    Mas valores.exe

  • Size

    3.1MB

  • MD5

    96e2ea5919379a8b3a4f9356e76db7cf

  • SHA1

    331e3e6adf0a64d6f3ebf7df02f3f009e0f4031d

  • SHA256

    075d1d85bd0d343aa52f28b0f479c91248b8ffc72a263288490ffb76b1c8ccbe

  • SHA512

    d02e8e126505f8c84fe164c1c71d1a2be76d97faf87de1210b5935c893af847ced72c8147e0c0c5ff1cff0e26d27ad970a8c0e91abf2a08ffb5e177cb1832197

  • SSDEEP

    49152:zv+lL26AaNeWgPhlmVqvMQ7XSKVsRJ6zbR3LoGdxTTHHB72eh2NT:zvuL26AaNeWgPhlmVqkQ7XSKVsRJ6l

Score
10/10
quasaroffice04discoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

Inversin-33856.portmap.host:33856

Mutex

addad9d5-e576-410c-a7ed-6fb91e2950f5

Attributes
  • encryption_key

    AEA258EF65BF1786F0F767C0BE2497ECC304C46F

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • Quasar family
    quasar
  • Quasar payload 2 IoCs
  • Checks computer location settings 2 TTPs 42 IoCs

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

  • Executes dropped EXE 42 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 42 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Runs ping.exe 1 TTPs 42 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 43 IoCs

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

    persistenceexecution
  • Suspicious behavior: LoadsDriver 6 IoCs