Malicious PDF — malware analysis report

Static analysis result for SHA-256 e16ccd36f3239837…

MALICIOUS

PDF

35.4 KB Created: 2021-06-28 00:32:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5bfa0fecd8e9c8cea484871f58b03a59 SHA-1: 549a801efb344c47c66b879b627f0d9599200946 SHA-256: e16ccd36f323983732bd1295ba94616935507419be14c58dd18c6afd40b5842c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to a known malicious domain, likely serving as a lure for game hacks and cheats. The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure, potentially for further exploitation or malware delivery. No scripts were extracted from this sample.

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.co/app/431946152/www-roblox-cheats-com-game-hack In PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/hack-to-get-unlimited-robux-free_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/hack-des-robuxs_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/free-tiktok-bots_GM835599320.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/how-to-hack-someone-in-roblox-easy_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/roblox-engine-hack_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/roblox-minion-game-hacked_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/roblox-win-earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-ant_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/shiny-charmander-easy-in-pokemon-brick-bronze-without-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/https-free-robux-cf_GM431946152.pdfIn PDF document text
    • https://elearning.maudu-rejoso.sch.id/__statics/gudangsoal/files/rbxoffers-earn-free-roblox_GM431946152.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
font_00_sfnt_off0000332c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x332C 22104 bytes
SHA-256: 7f80903c546f5d33672581a45df50954006cc07d751958063c5ac7591f4f0c50
font_01_sfnt_off00006455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6455 19380 bytes
SHA-256: e7e173486d59c025aacc09e75e7afe18ef9cc6b97f3183444ea486cdd9aedd6a

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