Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8edfad9515579e0…

MALICIOUS

PDF

34.7 KB Created: 2021-06-25 21:17:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a2284c5d488bfc7261663f6ded6bae13 SHA-1: 774709b7333eb45094bab81bf1a2e9e61848a85a SHA-256: f8edfad9515579e0467a4d594ad62332f0a6da1e3398db506f081efc95d61c82
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The heuristic firings indicate that the PDF is designed to lure users to these malicious redirectors, which are known to host harmful content. While no scripts were explicitly extracted, the nature of the embedded links and the ML classifier output strongly suggest a malicious intent to redirect users to potentially harmful 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/robux-cheaten-game-hack In PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/como-ser-un-hacker-en-roblox-impact-y-sin-virus_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/tiktok-fans-free_GM835599320.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/free-tiktok-followers-no-human-verification-2021_GM835599320.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/roblox-script-executor-free-2021_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/coin-master-free-attack_GM406889139.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/hack-para-booga-booga-roblox_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/code-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://dndprinting.com/new/public/ckfinder/userfiles/files/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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
stream_002_off00003179.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3179 22396 bytes
SHA-256: 5f57746bab68e3352302a784d804a5ea06209769a00f062e7f19fda24307c205
font_01_sfnt_off00006361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6361 18820 bytes
SHA-256: a0ceece7357988a0c710ab4672e78adb60a45f9f3ffc7bd71035a85a11e1bf79

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