Malicious PDF — malware analysis report

Static analysis result for SHA-256 f235e42360d18be9…

MALICIOUS

PDF

36.3 KB Created: 2021-06-27 08:17:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d4fdb01a86fb8f3d44c44e3d8a7933e2 SHA-1: 54c99556b991815a9450efb90eb2bd3989591fbb SHA-256: f235e42360d18be9718e54ac426bf01636db018b4d19fd9005be744a630eb94c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links and document body text that explicitly advertise 'free generator / game hack' lures, specifically mentioning 'free Robux' and 'Coin Master hack'. These links redirect to infrastructure identified as malicious. The ML classifier also strongly flagged this PDF as malicious.

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/how-to-earn-free-robux-without-human-verification-game-hack In PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/free-cool-hats-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easiest-way-september-2021-yummers_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/backpack-roblox-free_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/nerf-fps-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/robux-hack-script-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/how-to-hack-points-on-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/free-robux-come_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/free-robux-map-install_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/how-to-make-your-roblox-game-famous-for-free_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/gravity-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/free-robux-no-generator-no-download_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/new-speed-hack-roblox-2021-feb_GM431946152.pdfIn PDF document text
    • http://e-learning.man3kotapadang.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_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_off00003598.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3598 22160 bytes
SHA-256: e7cdc34487393f2a53a1bc1e04fb8419da80cadb5635bbbd8a91fe9551264190
font_01_sfnt_off00006692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6692 19860 bytes
SHA-256: 96a2171fb76ee819f21c135be8c5e74b714f7ef5f9e543ea25c1d6a48560aa2d

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