Malicious PDF — malware analysis report

Static analysis result for SHA-256 96da1419b8f59140…

MALICIOUS

PDF

33.8 KB Created: 2021-07-05 09:04:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d6f06de8f8c18450684af3fe92a62158 SHA-1: ab1b07b29e8e48e20c764e9bee090d4b397d8e1b SHA-256: 96da1419b8f59140fe40660dbcb67c2ce0ce46f3916de87b52eddc3d63e6a8d8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and generators for popular games. The primary lure appears to be a 'free headless head Roblox game hack'. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.tw/app/431946152/free-headless-head-roblox-game-hack In PDF document text
    • https://nature-air.com.tw/upload/files/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/generador-de-robux-hack_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/roblox-cs-ro-hack_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/coin-master-free-spin-whatsapp-group_GM406889139.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/pubg-uc-free-online_GM1330123889.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/hack-dragon-ball-roblox_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/roblox-robux-hack-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/hat-free-roblox_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/how-to-have-game-pass-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://nature-air.com.tw/upload/files/free-spins-coins-coin-master_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
font_00_sfnt_off00002d7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D7A 22528 bytes
SHA-256: b91e1af911de27ef774a0e4623bee947e347cf72a35e95ec6047564868bdb333
font_01_sfnt_off00005fb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB3 18824 bytes
SHA-256: 7384526ce2dd4d92cd45550fda12bae152729c1e692f7aa7bf6070bc228cd510

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