Malicious PDF — malware analysis report

Static analysis result for SHA-256 9522ad656c58a574…

MALICIOUS

PDF

41.5 KB Created: 2021-05-10 16:49:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7fb928101bb45bd6baa724445910f8e2 SHA-1: 7da7489513bbce05d005e6113bfb8e0f60d94b36 SHA-256: 9522ad656c58a574a34f3a1ef1fd1535913958b70bd29de3e63bd0b21594b08b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links disguised as game-related generators or hacks, such as 'minecraft-hack-2021-game-hack'. These links redirect to external domains that likely host further malicious content or phishing pages. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://netcdn.xyz/app/479516143/minecraft-hack-2021-game-hack PDF link annotation
    • http://librarysenior.com//repository/free-daily-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/coin-master-official-website_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/hack-game-plus-com-coin-master_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/coin-master-instagram-free-spins_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • http://librarysenior.com/repository/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://librarysenior.com//repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://librarysenior.com//repository/coin-master-hack-ios-10_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://librarysenior.com//repository/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/apps-to-get-minecraft-for-free_GM479516143.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_003_off00004a22.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A22 24068 bytes
SHA-256: c419e1fe090486d3d3ecfa9ee76a085040f0cb0a44831d18ec5a83cd7015f33b
font_01_sfnt_off00008065.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8065 18140 bytes
SHA-256: c4871d7a9fac3ab188a2e56e86996e0c49dc42d21a9daf4a9eb4f35130b88c58

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