Malicious PDF — malware analysis report

Static analysis result for SHA-256 429bd1fcab453254…

MALICIOUS

PDF

44.4 KB Created: 2021-06-04 04:27:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 820b38a477ab7a73a29f961fd6c9c482 SHA-1: 9093b02ad5afa23b178196d394e7887e5a504519 SHA-256: 429bd1fcab4532540728939673e4988d336f813db8607d3a8a6334a293559415
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and text that suggest a lure for downloading game-related cheats or currency. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent. While no scripts were directly extracted, the presence of external URIs and the document's content point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/how-to-hack-mcpe-master-coins-game-hack In PDF document text
    • http://digilib.uim.ac.id/repository/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-hack-in-arsenal_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-game-hacks_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/buy-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/roblox-free-draw_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-free-roblox-money_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
stream_004_off0000519c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x519C 24952 bytes
SHA-256: 434b65a576e1d0ddaae908e16b7c2b89f713f28bd717796f346603bb98909426
font_01_sfnt_off00008b7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7D 18056 bytes
SHA-256: 83c061de58163a74fec112c6743d1f6457b815002caa11f90abcce44be40989c

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