Malicious PDF — malware analysis report

Static analysis result for SHA-256 224a0145270c850d…

MALICIOUS

PDF

33.5 KB Created: 2021-07-05 16:36:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2f3b544742c155d5beee05bfe880c361 SHA-1: 59bfbee7fbda7344e567bec93af469f77725b96c SHA-256: 224a0145270c850da2c6ae1da1888e8cd80c8007eda3925c4e80d3425d241d45
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it links to malicious redirector infrastructure, specifically promoting a 'game hack' lure. The document body and embedded URLs reinforce this, pointing to a site that likely hosts further malicious content or phishing pages. No scripts were extracted, but the primary attack vector is the embedded malicious link.

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.tw/app/479516143/noob-vs-pro-vs-hacker-vs-god-minecraft-game-hack In PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/hack-coin-master-online-without-human-verification_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-make-a-free-robux-scam-game_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-roblox-hacks-for-free_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/robux-free-com_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-hacks-for-rb-world-2_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_off00002e4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E4B 21980 bytes
SHA-256: 08d12086d33a471ced038eb788d703fd07576f9d3e1faa69d2c967e936ac7957
font_01_sfnt_off00005ea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA7 18788 bytes
SHA-256: cca5c8335eb7dad86f4843ad1de19f84038aa266d8c3ffdfef6d5eea3fe15bc0

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