Malicious PDF — malware analysis report

Static analysis result for SHA-256 54ec271210c7a09a…

MALICIOUS

PDF

43.2 KB Created: 2021-06-13 22:52:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 18be2d6b9805756985538a70382d983f SHA-1: d4612c3adf60c37ba7aaf41cb3f0bf16de0d54d1 SHA-256: 54ec271210c7a09a9197843e62595c9cd335625342dbb363453a79ba51600470
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising game hacks and generators. The heuristic PDF_GAME_HACK_REDIRECT_LURE and PDF_MALICIOUS_REDIRECTOR_LINK indicate that the primary purpose is to lead users to potentially harmful content. Although no scripts were explicitly extracted, the embedded URLs and the nature of the lures suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.co/app/431946152/roblox-immortal-hack-blood-of-iron-game-hack In PDF document text
    • http://www.buapit.ac.th/UserFiles/File/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/how-to-get-coin-master-free-spins-in-email_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-robux-codes-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/earn-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/coin-master-blogspot-links_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/how-do-you-hack-in-roblox-by-using-a-phone_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.buapit.ac.th/UserFiles/File/hackear-roblox-para-android_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004906.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4906 26908 bytes
SHA-256: 92ba773916632c8e316f68007dfe6e18a9de5763fa2e815434ba624c996cd5ce
font_01_sfnt_off0000851d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x851D 18720 bytes
SHA-256: af63b0f70ea2d5150a98cb842419bb83085646e73bcc36bbd2a1795c65d82816

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