Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c41046e4029ca45…

MALICIOUS

PDF

33.4 KB Created: 2021-06-26 20:42:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5367c41557b83ee1717e68ac985726d1 SHA-1: 707ced6bb4d79dba57e61704be1e8b16d1ae1c34 SHA-256: 7c41046e4029ca456e31c796440c76001d1ff95a3bca6998056dc497ba3b4be8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free in-game currency and items for popular games, as indicated by the document body and multiple heuristic firings. It contains numerous embedded URLs that lead to malicious redirectors, such as http://netcdn.co/app/431946152/free-t-shirt-design-in-roblox-game-hack, designed to funnel users to potentially harmful sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/free-t-shirt-design-in-roblox-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-exploit-download-2021-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-on-roblox-free-money-vircle-simulator_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coinmasterfreespins_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/get-roblox-items-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/tiktok-free-jazz_GM835599320.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-codes-2021-december_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-sue-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-catolog_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_off00002a1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A1F 22832 bytes
SHA-256: 514fbcab43356910d2f2ed5b905aa561a334a71476cb3fdf71fc3f19417d9c3c
font_01_sfnt_off00005d3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D3B 19208 bytes
SHA-256: 12ac91d9b54fa1796d42f4ae264e5fca9d53ac027ba9ce6c04aebd94b203f806

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