Malicious PDF — malware analysis report

Static analysis result for SHA-256 a14da8fd5ad7ac83…

MALICIOUS

PDF

36.0 KB Created: 2021-07-04 22:34:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b82d15961521e40bf733597f702a1512 SHA-1: 11b049962fcf37f1f8187decf81dc87949ba0ff0 SHA-256: a14da8fd5ad7ac835f58d86417162b82af37005024eba76127ad6c29f5612926
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/coin-master-latest-version-hack-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info//repository/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/www-roblox-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-hair-for-avatar_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/ultimate-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-accounts-with-obc-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-unlimited-money-i-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-get-free-robux-greenlegocats123_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-urbis-money-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-shadowrun-skip-cheat-codes_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/comment-hacker-le-jeu-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-robux-hack-free-generator_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-no-survey-or-verification_GM406889139.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
stream_002_off000035d3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35D3 23268 bytes
SHA-256: f1d0b1ca40d2262c91759bfebfa2902c0e60e064f6d2f2a7db9d20cc3b106952
font_01_sfnt_off00006a78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A78 18140 bytes
SHA-256: a9e8470a6ff9ffe956151425c7fda0f1cece6269167d4df22c16351a2ed4f3ca

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