Malicious PDF — malware analysis report

Static analysis result for SHA-256 0903a40e0d6d96e4…

MALICIOUS

PDF

33.1 KB Created: 2021-06-26 21:24:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 40e424433408107d76c37a760e23d966 SHA-1: 2d85e2bb3db9f0b8754c7e1989e87d65cac84e90 SHA-256: 0903a40e0d6d96e432519828358d3c82849ae66bdc6aad2245d4dca95c6d6f84
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising 'game hacks' and 'generators' for popular games like Roblox. The heuristic firings indicate these links lead to malicious infrastructure and are designed as lures. While no scripts were explicitly extracted, the nature of the lures suggests an intent to trick the user into downloading a second-stage payload.

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/roblox-speed-hack-2021-april-game-hack In PDF document text
    • http://magnipsor.su/images/free-views-tiktok_GM835599320.pdfIn PDF document text
    • http://magnipsor.su/images/has-roblox-always-been-free_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-roblox-outfits-and-more_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-free-spins-link-today-ios_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://magnipsor.su/images/pokemon-go-free-bot_GM1094591345.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-get-free-faces-promocodes-on-roblox_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-roblox-animations_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://magnipsor.su/images/mathep_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/roblox-hacking-kako_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/gain-robux_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/free-robux-v3rmillion_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • http://magnipsor.su/images/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://magnipsor.su/images/android-fast-hack-roblox-2021_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_off00002946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2946 22372 bytes
SHA-256: 9a6e64455cbaaa50c9b3576b61c8c444f319529cf6dc2c19d9538edef4f6d6a3
font_01_sfnt_off00005ada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ADA 19528 bytes
SHA-256: 1ea72702b4e05f5cca63d15f39aa9f8e98811d08fbe74b1b9298a75ed6477f36

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