Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4d0eb174dcd6864…

MALICIOUS

PDF

46.7 KB Created: 2021-06-03 22:00:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 59c5d263a8b23c283f2e747224e0de85 SHA-1: e32f883cdb08f59abea55700c1dee44f9336c682 SHA-256: c4d0eb174dcd6864da31c8585d1a570c763fadfba6282e51ee9a14cc23b5b764
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains lures related to popular games like Minecraft and Roblox, directing users to click on links. These links, such as 'https://netcdn.online/app/479516143/minecraft-pvp-hacks-game-hack', are identified as malicious redirectors. The document's structure and embedded links suggest an attempt to trick users into visiting malicious sites, likely for further payload delivery or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/479516143/minecraft-pvp-hacks-game-hack In PDF document text
    • http://www.js100.com/uploads/ckeditor/files/i-caught-my-mom-cheating-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-free-exploits_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/can-lucky-patcher-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/free-generator_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.js100.com/uploads/ckeditor/files/get-coin-master-spins-free_GM406889139.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
stream_004_off000054c7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54C7 29092 bytes
SHA-256: 9397c8c6d5e9714e8b15c9ae0b6f5536be242e96218b46b0754d7cbc92163672
font_01_sfnt_off00009493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9493 18180 bytes
SHA-256: 0e2f0ac061c68c7eb9671630210144f167660a9976ef74b494f6c2985e791cfa

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