Malicious PDF — malware analysis report

Static analysis result for SHA-256 150aab4243968620…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 18:22:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 417b16c5f4d90a63783493e3b55d31d3 SHA-1: 6bc36847def965dad327c55670ab22baa6f60bef SHA-256: 150aab424396862066591911c5b16d17ee63602cd65251b33341a119043e249d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and 'free spins' for popular games. The primary lure URL is http://netcdn.tw/app/406889139/facebook-coin-master-free-spins-link-game-hack, which is designed to trick users into clicking through to potentially harmful content. No scripts were extracted, but the document's structure and embedded links strongly indicate a phishing or social engineering attack.

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/406889139/facebook-coin-master-free-spins-link-game-hack In PDF document text
    • http://proyetec.com.co/aym_image/files/how-to-hack-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/update-roblox-free_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/robux-codes_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/roblox-i-hacked-my-fans_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/how-to-get-robux_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/earn-robux-online_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/hack-roblox-pc-download-no-clips_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/feriz-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/free-model-games-roblox_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/robux-at-http-free-robux-space_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/roblox-how-to-get-free-stuff-2021_GM431946152.pdfIn PDF document text
    • http://proyetec.com.co/aym_image/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off0000314c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x314C 22464 bytes
SHA-256: 66bd2e6e9011aa1e755a0403d9007119066c4cd8755bcb3c14e5696e78584976
font_01_sfnt_off00006308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6308 18504 bytes
SHA-256: 82c3e55a3f16517a0e9da98b063043b0b8ffb7837822c376f9cc5fed45eb6737

Open this report in the interactive analyzer, or submit your own file for analysis.