Malicious PDF — malware analysis report

Static analysis result for SHA-256 93f930f2647ffc26…

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 06:25:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d6f02245ad92bc8b08386d59a4a5f25d SHA-1: 299a765cc7173fbe1ff0fa1ccfa5d5c0990c9eb9 SHA-256: 93f930f2647ffc26283086228437be2fdff9f9f1f84853ec7a5e3b286a63d3d9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and embedded URLs suggest a phishing attempt focused on popular online games like Roblox and Minecraft. While no scripts were directly extracted, the nature of the links and the lure indicate a likely attempt to lead users to a site that may host further malicious content or attempt credential harvesting.

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/431946152/free-roblox-shirt-templates-2021-game-hack In PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-get-free-roblox-clothes-2021_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-hack-roblox-accouns_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-hack-coin-master-in-pc_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-earn-free-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/easy-robux-com_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-minecraft-mods-for-xbox-one_GM479516143.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/hack-youtube-roblox-game_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/how-to-get-free-robux-5-million_GM431946152.pdfIn PDF document text
    • https://3qblocks.com.tw/image/data/files/gamescraft-org-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_off000030d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D8 22320 bytes
SHA-256: 68e657bfe3272be5899b6b168da729ae26da2470b4a0908b478ddddbc1f1d16a
font_01_sfnt_off00006248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6248 19880 bytes
SHA-256: 170171e72ed44fe2d1671d198052de416a0c1db0a25c3152879e7d45f71f48b4

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