Malicious PDF — malware analysis report

Static analysis result for SHA-256 517d32ae2c37d1c5…

MALICIOUS

PDF

50.8 KB Created: 2021-05-14 01:08:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8dfa7719a7acfa5d2475717af778bb3c SHA-1: 5063d726b6c83213f01e581e3e6ee1a4280a8740 SHA-256: 517d32ae2c37d1c5d91b849f0acc611585a696ac63d51ef5ec93a10c83558ddd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on a 'free generator / game hack' which redirects to malicious infrastructure. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to potentially malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9349

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/431946152/free-robux-gift-card-game-hack In PDF document text
    • http://whiteyaknepal.com/userfiles/files/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/is-coin-master-free_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/how-to-get-free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/minecraft-free-download-mac-full-version-2021_GM479516143.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coinmaster-fan-page_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/coin-master-hack-without-verify_GM406889139.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/install-free-game-coin-master_GM406889139.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
font_00_sfnt_off00004978.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4978 26432 bytes
SHA-256: 543e0081c14ab789ef5d2fa817ce73ac3edaa80443ce1df4ea07b26ff51329a0
font_01_sfnt_off000086f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F0 8704 bytes
SHA-256: ddfd86c88a6b8304bc31eeb9f28c8110fac325cdacc87503bacf4ac741777490
font_02_sfnt_off0000a35b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA35B 18640 bytes
SHA-256: 59f1432744b9d8cf879cb7c8a299bbbbba85d5427cd565107f85277265ec050e

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