Malicious PDF — malware analysis report

Static analysis result for SHA-256 408466ed48c14e01…

MALICIOUS

PDF

50.0 KB Created: 2021-06-03 09:47:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6f483cfa3d87063ee60baf2ed4e07f82 SHA-1: 5a03c8f048f41bd69c8156352e23104ce043fb7a SHA-256: 408466ed48c14e011152b9a2afdfb963127fe949e8988c76470db458741d28f6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'free generators' for popular games. The primary lure URL is https://netcdn.online/app/406889139/coin-master-blogspot-links-game-hack, which likely serves as a gateway to further malicious content or downloads. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/406889139/coin-master-blogspot-links-game-hack In PDF document text
    • http://library.stieyapan.ac.id/repository/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-spin-coin-master-instagram_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-admin-hack_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/pokemon-go-free-event_GM1094591345.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/app-store-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-get-more-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/pubg-uc-transfer_GM1330123889.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/download-coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/freespinandcoin_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/buy-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/minecraft-hacked-client-download_GM479516143.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000549c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x549C 27464 bytes
SHA-256: ffc7667ebf0a65861f62805a82a18d0bcb8baef246fb1880481ff6015932cf36
font_01_sfnt_off00009340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9340 3692 bytes
SHA-256: bcffdcd175800a21105ccfb4b00588322dd9a4f1a4667875b9f8cdc53a612f78
font_02_sfnt_off0000a052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA052 18472 bytes
SHA-256: 3a9541160e4b92d794687f49994e2eb1b208d5ca6227e81bc9e0881bb6ba4ccc

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