Malicious PDF — malware analysis report

Static analysis result for SHA-256 f980b42c001a593a…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 20:14:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 642532c315a4d36ae2b4b49a4bcb3149 SHA-1: 87351571638242cdaee8c091157b8c85227acdc0 SHA-256: f980b42c001a593ab908493628ae781c22bf4e7a05a4554f5e16602b9f4a2bc1
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 0.9980

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/free-coins-for-coin-master-game-hack PDF link annotation
    • http://librarysenior.com/repository/how-to-get-levitation-animation-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://librarysenior.com//repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://librarysenior.com//repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://librarysenior.com//repository/get-me-robux_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • http://librarysenior.com//repository/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • http://librarysenior.com//repository/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://librarysenior.com//repository/free-roblox-followers_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/tiktok-views-free_GM835599320.pdfIn PDF document text
    • http://librarysenior.com/repository/mcpe-com_GM479516143.pdfIn PDF document text
    • http://librarysenior.com/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://librarysenior.com//repository/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://librarysenior.com/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://librarysenior.com//repository/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://librarysenior.com/repository/tiktok-free-to-download_GM835599320.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_off00003290.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3290 22868 bytes
SHA-256: 050c860d1e136f721fbcc591ea5d7c035ea0ce15f2f4742c2d0dbaacee8ef747
font_01_sfnt_off000065cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65CF 17996 bytes
SHA-256: db592684bbdaaeb7647633841870edbd5981f70e843d3403859f62ceb8e0c83d

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