Malicious PDF — malware analysis report

Static analysis result for SHA-256 9349a02196e6f18b…

MALICIOUS

PDF

35.4 KB Created: 2021-07-04 18:04:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1a8c1616cda62cde6f94d675cbd745bc SHA-1: 349bfdd4900e97bdc19c9d18a20b507267492950 SHA-256: 9349a02196e6f18bb303551bc3681c80888de8ede0e4a39e12a4383f4c891faa
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a game hack generator, which redirects to the URL http://netcdn.tw/app/406889139/hack-coin-master-without-root-game-hack. This heuristic, combined with the ML classifier's high confidence, indicates a malicious intent to redirect users to a potentially harmful site. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a social engineering lure for initial access.

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/406889139/hack-coin-master-without-root-game-hack PDF link annotation
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-free-coins-and-spins-link-today_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-shirt-creator-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-cheat-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-hack-into-other-peoples-account-on-roblox-mac_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-studio-apk-free-download_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-1-robux-a-day_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/microsoft-store-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-tbc-upgrade-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/best-lvl-7-roblox-hack_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-hack-2021-ios_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-robux-no-human-verification-and-no-survey_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
font_00_sfnt_off000032a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A3 23224 bytes
SHA-256: 561c1500fec1f76b8acb851f2dcd832c932ec3e85fcb838bd50c8cdd6d06d68a
font_01_sfnt_off000066ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66EF 18508 bytes
SHA-256: 7412962c38736f31792a490788021e885b84a7fc2ab52d8639a2d80332116790

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