Malicious PDF — malware analysis report

Static analysis result for SHA-256 4aa46cbf31bbc8fe…

MALICIOUS

PDF

3.9 KB Created: 2021-07-06 08:19:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-02
MD5: f2dd9d11540dee77450d7e38ee7a64d4 SHA-1: b7f16256836907e805f4e1f0b070e78c8b272a91 SHA-256: 4aa46cbf31bbc8fe1d773c4859b0937b9d41f30cd6c14de904db8a08fb46b040
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one to a known malicious redirector at http://netcdn.tw/app/431946152/free-robux-apk-game-hack. The document body and heuristics suggest a lure for 'free Robux' or game hacks, which is a common social engineering tactic. The presence of embedded URLs and the nature of the lure indicate an attempt to direct the user to potentially malicious content or further stages of an attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9553

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/free-robux-apk-game-hack In PDF document text
    • http://perpus.wdh.ac.id/repository/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/coin-master-sound-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-to-change-your-roblox-username-for-free-no-email_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-kick-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • http://perpus.wdh.ac.id//repository/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/whats-a-code-for-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-do-you-get-free-robux-and-tix_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://perpus.wdh.ac.id/repository/free-modded-minecraft-server_GM479516143.pdfIn PDF document text