Overview

overview

10

Static

static

10

usbfallback.exe

windows10-2004-x64

10

usbfallback.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    usbfallback.exe
  • Size 3.1MB
  • Sample260415-tmpehsdt2k
  • SHA256 6029a278d4c0525bd9aaa754fcfb9c3c6b652249a26ff4592b42b9a9434d5d60
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasarhackedexecutionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • HACKED

C2

  • 86.135.2.35:7752

Mutex

  • 034caf8b-590c-452b-8e34-665ddd4b3cb4

Attributes
  • encryption_key

    E0127CB029C9D3778D15D3948B41ECDC8B44FB03

  • install_name

    usbfallback.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Microsoft USB Fallback

  • subdirectory

    Microsoft

Targets

    • Target
      usbfallback.exe
    • Size 3.1MB
    • SHA256 6029a278d4c0525bd9aaa754fcfb9c3c6b652249a26ff4592b42b9a9434d5d60
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    hackedexecutionquasarpersistencespywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Looks up external IP address via web service

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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks