Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6473813b06149af…

MALICIOUS

PDF

42.3 KB Created: 2021-05-12 21:16:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fdde73703083ac986176aea8e8e29f2e SHA-1: a5a3308c77d7d9e51608c850490b26e32e2fa245 SHA-256: d6473813b06149af274b7e74f2d2e527344c78a9b3a93718252a6f386c4df1c9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a redirector infrastructure, masquerading as a 'game hack' generator. The primary link, https://netcdn.xyz/app/406889139/how-to-block-someone-on-coin-master-game-hack, is identified as a malicious redirector. The document body and heuristics indicate a lure for users seeking cheats or hacks, likely leading to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/how-to-block-someone-on-coin-master-game-hack In PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/robux-place-rewards_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-minecraft-skins-xbox-one_GM479516143.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/what-is-a-robux_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-2021-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-coin-link_GM406889139.pdfIn PDF document text
    • http://elearningmin3mojokerto.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-hacks_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b5a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B5A 24620 bytes
SHA-256: f9e63b1db14835352dd8fd15a55707fa00b5eb37d6949a77f69c06cd772038e0
font_01_sfnt_off0000828a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x828A 18432 bytes
SHA-256: 180049bf979394b6925be42ca29b0bcd3c26272f9b9e4d5497faafb59638d297

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