Malicious PDF — malware analysis report

Static analysis result for SHA-256 05936d8067618fbb…

MALICIOUS

PDF

35.4 KB Created: 2021-07-03 18:54:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ea256d735b5702a1d648c212bb766412 SHA-1: ad1ace0e8c2d2dd52ae69c662e29ff96f53883bb SHA-256: 05936d8067618fbbcb806eaecbb30a1069778ff3ff246f31a942ee7700f8e935
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, with a primary URL identified as a malicious redirector. The document body and heuristic firings indicate a lure for game hacks and free currency, aiming to direct users to potentially harmful websites. The ML classifier 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.tw/app/406889139/coin-master-instagram-free-spins-game-hack In PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-builders-club-on-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-infinite-health-hack-phantom-forces_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/tokyo-ghoul-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-witch-hat-free_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-promo-codes-list_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-get-free-john-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-to-make-custom-api-for-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-descargar_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-codes-on-roblox-assassin_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-100-real_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/how-often-tiktok-free-download_GM835599320.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/free-robux-333-weebly_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/apocalypse-rising-hacks-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-beautiful-hair-free_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/get-free-roblox-easy-way_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/roblox-speen-hack_GM431946152.pdfIn PDF document text
    • http://lib.fekon.untad.ac.id/repository/alguna-manera-de-hackear-cuenta-de-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34BE 22648 bytes
SHA-256: f56eb3e015121f07871f316c886923b3fe321ef0cdab31e13fc1de6bd711d1a3
font_01_sfnt_off0000677f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x677F 18432 bytes
SHA-256: 4a1dad6336892b39dfb00763b73a751e64608b7189d923a2fc09fcd4c28d16d1

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