Malicious PDF — malware analysis report

Static analysis result for SHA-256 72f86b9379eddf34…

MALICIOUS

PDF

42.9 KB Created: 2021-05-13 09:30:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6bd84e430987c3346ab7ef4b6344ff12 SHA-1: ac983f657be39d58d9ed02fae54bdb2bdeb536e6 SHA-256: 72f86b9379eddf346f2268b7202194d4a4dd83fefba5647ac4378887aa47e89b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and websites offering game hacks and free resources. The primary lure appears to be related to 'Coin Master Free Spins 2021', directing users to a malicious URL. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious redirection and a lure-based attack pattern, likely intended to lead users to phishing or malware download sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-free-spins-2021-game-hack In PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/minecraft-free-download_GM479516143.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/login-robux_GM431946152.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/roblox-comcom_GM431946152.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/roblox-sexually-abused_GM431946152.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/coin-master-free-pet-food-links_GM406889139.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/robux-today_GM431946152.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/roblox-trolling_GM431946152.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://www.laksanatravel.com/ckfinder/userfiles/files/free-draw-roblox_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_off00004b64.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B64 25772 bytes
SHA-256: ee09b9b5c99c6666513332400d4297a32cd33eef0f8ffce21095f0bdc9fe6702
font_01_sfnt_off00008552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8552 18288 bytes
SHA-256: 9f7609fba99e53c6baa99bb04d1c7e3f9b7167131c1520eb2a413cdab4a14871

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