Malicious PDF — malware analysis report

Static analysis result for SHA-256 4890a788fa3abfcc…

MALICIOUS

PDF

41.7 KB Created: 2021-05-17 03:41:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: de2c5e50e157b0eaf3f4c9589c0bb0f0 SHA-1: 1e1b565dfff9dc0326826b993f840a6694ef8576 SHA-256: 4890a788fa3abfcc54675e528144b9c63a2781d0a0882413c24c837260afc2b3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appears to be a game hack or free generator. These links redirect to known malicious infrastructure, specifically a URL associated with game-related scams. The presence of a visual download button further supports the deceptive nature of the document, aiming to trick users into downloading potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/moonactive-coin-master-free-spins-link-game-hack In PDF document text
    • http://neumann.fr/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/free-spin-links-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/robux-generator-com_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/how-do-you-get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/free-roblox-card_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
    • http://neumann.fr/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/robux-survey_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/minecraft-com-free_GM479516143.pdfIn PDF document text
    • http://neumann.fr/images/robloxfun-com-generator_GM431946152.pdfIn PDF document text
    • http://neumann.fr/images/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • http://neumann.fr/images/free-coin-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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000474b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x474B 24864 bytes
SHA-256: 84379e81d84ee500f058645e25062877f01ce93f32946ef1de8c0d7adacbf130
font_01_sfnt_off000080c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C3 18168 bytes
SHA-256: 5140a57a6990af64b86c6fc328de463115c3f290c56e1373822c3feaa5dc4a97

Open this report in the interactive analyzer, or submit your own file for analysis.