Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbee0b53625ca936…

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 21:43:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8e5ad33805791364a7b583fd13b6a26b SHA-1: 4cfd978cdc88380922bbc0a94695b9debd19c7a0 SHA-256: cbee0b53625ca93665280bb249c122659d81bffd2356c27b417a1189f6fd025d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/how-to-download-minecraft-java-edition-for-free-game-hack PDF link annotation
    • http://library.stieyapan.ac.id/repository/card-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/best-hack-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-daily-link_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/robux-free-c_GM431946152.pdfIn PDF document text
    • https://code.giftcards.comIn 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_004_off00005219.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5219 24820 bytes
SHA-256: f9f172401fa93a35500ab7a184f975cee5354fbf6fcd79c4af53bd4810cc0733
font_01_sfnt_off00008b25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B25 18572 bytes
SHA-256: 372950b09ae56ccdc45362242de33d197b063ee091c9df90a0e91acdbb6b8628

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