Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7a9f3155ff7541d…

MALICIOUS

PDF

41.5 KB Created: 2021-05-13 00:36:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 844338c4c00892b034d238f9a6b4957e SHA-1: c6f238d91a3f73959b1615b66b1aad0b13029fa4 SHA-256: f7a9f3155ff7541d42dce215638e0fb0eaa9cf0515887aa4769f8cd596346703
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector. The embedded URL and document body text reinforce this, pointing to a lure for game-related cheats. This suggests the document's primary purpose is to trick users into visiting a malicious site, likely for further exploitation or malware delivery.

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-java-edition-code-free-game-hack PDF link annotation
    • http://digilib.ivet.ac.id//repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.ivet.ac.id//repository/free-robux-live_GM431946152.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/free-coin-master-app_GM406889139.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/village-4-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.ivet.ac.id//repository/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.ivet.ac.id//repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.ivet.ac.id//repository/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://digilib.ivet.ac.id//repository/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/coin-master-email-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.ivet.ac.id//repository/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/free-private-server-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.ivet.ac.id//repository/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/how-to-get-gold-cards-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://digilib.ivet.ac.id/repository/free-coin-master-spins-without-human-verification_GM406889139.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_off000049d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49D3 24552 bytes
SHA-256: d3192054ad14bbe8c273ac55b6e4a669993da6d59a975081dce409d61dd6b8c3
font_01_sfnt_off00008000.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8000 18164 bytes
SHA-256: f60a0ad92d00317e2c15f806bb6b4e732b7ddb4bf4afc6afb4b51f1f749874bc

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