Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3098fd2d3fd4cf…

MALICIOUS

PDF

47.9 KB Created: 2021-05-14 02:52:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 4e391912d0cf918fce6ac313719402e0 SHA-1: 5183f327d859e700889a744f4c4c804005e8fb3c SHA-256: 4e3098fd2d3fd4cf905b839d11ff90ddd7def15e82ef6e00b6255979c7acd87f
160 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/master-hack-coin-game-hack In PDF document text
    • http://www.pacoestrada.it/images/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://www.pacoestrada.it/images/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/coin-master-daily-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.pacoestrada.it/images/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://www.pacoestrada.it/images/roblox-rewards_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/how-many-levels-are-there-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/robux-for-kids_GM431946152.pdfIn PDF document text
    • http://www.pacoestrada.it/images/coin-master-game-hack-kaise-kare_GM406889139.pdfIn PDF document text
    • http://www.pacoestrada.it/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ae6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AE6 30536 bytes
SHA-256: 0f6d9ee98f8920a66214ee74d7bcddcdd7449f97e87c8548ab371aa6249b2941
font_01_sfnt_off00008e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E83 3380 bytes
SHA-256: 1dd933c112880b232546f3aab6a17784a8f412d39fd551cc6eb31c5a04c3ce57
font_02_sfnt_off00009a6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A6B 17716 bytes
SHA-256: 458e034195b9d21dc4a16e006206fa5889a20d0bfe7da041b4dcadf36e5a6633