Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3158141645f4754…

MALICIOUS

PDF

35.5 KB Created: 2021-06-28 05:39:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b72ea1ca62a1377c760c77b0c078a6d5 SHA-1: 9649b674231ef6b8ebde3f86ecdd80b69c01b01c SHA-256: d3158141645f4754fe634b8346fcf58effca7467edddaa6d3380edb5dae6e313
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free currency, specifically mentioning Roblox. It embeds a link to a known malicious redirector infrastructure, http://netcdn.co/app/431946152/how-to-get-the-roblox-sex-hack-game-hack. This suggests a phishing or scam attempt designed to redirect users to potentially harmful content or further malicious sites.

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-the-roblox-sex-hack-game-hack In PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-spin-codes-coin-master_GM406889139.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/coin-master-free-stuff-links_GM406889139.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-minecraft-videos_GM479516143.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/how-to-get-a-hacked-roblox-client_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/how-to-hack-roblox-medieval-warfare-reforged_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/roblox-cheat-codes-for-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/roblox-admin-hack-55-download_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/how-to-hack-roblox-servers_GM431946152.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/download-coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://www.markettraderacademy.com/uploaded_files/userfiles/files/roblox-hack-all-badge-script_GM431946152.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
font_00_sfnt_off0000336f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x336F 22496 bytes
SHA-256: 32fd3470b565b8247fa46a8e0170e1f1fb0cf9e0df788e4a4417eb85fe365853
font_01_sfnt_off0000657c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x657C 19088 bytes
SHA-256: 0d9dfde61f351c0ce65f7a2b2dac0202662d407867baf4978d0c9617cd877941

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