Malicious PDF — malware analysis report

Static analysis result for SHA-256 d306c72669a3f609…

MALICIOUS

PDF

35.6 KB Created: 2021-06-18 18:00:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c7059ed2188a039f425cbcea14d6e471 SHA-1: af8cb241d6e99dc13c33ecf0769ef61318afbc37 SHA-256: d306c72669a3f609fc208feae2cdab000b5895fc720247eace49bf8bb0c64374
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or exploits. The document body and embedded links strongly suggest a social engineering tactic to drive users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/download-roblox-for-free-unlockable-game-game-hack In PDF document text
    • http://www.sapaengineering.kz/images/roblox-money-hacks-with-lots-of-money_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/robux-hack-wiki_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/coin-master-hack-root_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/how-to-get-free-robux-t_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/roblox-girl-avatar_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/jurrasic-world-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/roblox-zone-roblox-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DC 22548 bytes
SHA-256: 9f0b2289f24a3174fb14a22f1608e817b7210c867ea1a90b181a0c3336d20967
font_01_sfnt_off0000648f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x648F 19584 bytes
SHA-256: ec4c456bc513ae326c85832660f09211272814ab12b944f5f2c35c76dd2e3752

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