Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f310f119b51ae3a…

MALICIOUS

PDF

32.9 KB Created: 2021-07-08 16:13:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 1cdf54065aaa4c099bb12257d471561c SHA-1: 613c034c5ef183911c15d14a5f129631da379fa8 SHA-256: 5f310f119b51ae3aeb8388e727a7fd479225ea906303f0f3b7bd42e4a541edf3
82 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to a URL associated with game hacks and generators. This lure is designed to trick users into downloading potentially malicious content. The ML classifier strongly indicated maliciousness, and the PDF_GAME_HACK_REDIRECT_LURE heuristic confirms the deceptive nature of the links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/minecraft-free-school-game-hack PDF link annotation
    • http://stitqi.ac.id/website/repository/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-generator_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/pubg-uc-660_GM1330123889.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-free-spins-daily-1-ga_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-coin-master-spins-and-coins-for-daily_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_off00002d7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D7C 22008 bytes
SHA-256: d4cde0a64a0421def67dea194851340564135757eea0a7f65744fc81f038225d
font_01_sfnt_off00005df5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF5 18236 bytes
SHA-256: 5a6498f3f64aa35d42ea778cfda1642a5e2c3d59ef72b66b096602496afce130

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