Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe302939154aafc2…

MALICIOUS

PDF

34.5 KB Created: 2021-06-20 02:40:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6cbdac6c8c5bb70254141ceb23f08dfc SHA-1: 03fd8fc0619d27574a66d75184ee37fe4cc2bd07 SHA-256: fe302939154aafc20e49a75db62075edb6ce62c498a8878904c81cf4b4234e15
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links, one of which, http://netcdn.co/app/431946152/how-to-get-free-robux-from-joining-a-group-game-hack, is identified as a malicious redirector. The document body and heuristics suggest a lure for free game currency or hacks, likely leading to a phishing or malware download site. No scripts were extracted from this sample.

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-get-free-robux-from-joining-a-group-game-hack In PDF document text
    • http://www.alpaca-buitensport.nl/images/can-you-get-roblox-free-on-the-switch_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/roblox-free-printables_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/safe-roblox-hack-sites_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/how-to-hack-pepoles-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/how-to-cheat-in-roblox-mega-fun-obby_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/how-to-get-free-robux-using-inspect-2021_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/free-robux-really-works-2021_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/pubg-uc-or-bp_GM1330123889.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/game-give-free-robux_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/free-games-like-roblox_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/free-minecraft-videos_GM479516143.pdfIn PDF document text
    • http://www.alpaca-buitensport.nl/images/how-to-get-free-robux-with-no-verify_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_off00002f43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F43 22000 bytes
SHA-256: 04d9c0e51f601edf5154e07f374c2e1a042725071012f59b7ddd41ca66a94224
font_01_sfnt_off00005fed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FED 19708 bytes
SHA-256: 72520521030402a718ecfd9392c2efd78005d35838ebc76d8296ff5260495235

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