Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb8aa0e222f9c07d…

MALICIOUS

PDF

41.6 KB Created: 2021-05-12 03:07:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e6be8bd42ef1e0a5bb03ca10a6826629 SHA-1: d8690cbc4a72462675d490abca12bee12160a41a SHA-256: fb8aa0e222f9c07d6b00641486e5f93422a63b82cd79819a32716a120548d125
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a link that redirects to a "game hack" website, likely a lure for users to download potentially malicious software. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure itself contains embedded URLs that are part of the malicious lure.

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/406889139/coin-master-hack-version-2021-download-game-hack PDF link annotation
    • http://www.notaioricci.it/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.notaioricci.it/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • http://www.notaioricci.it/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://www.notaioricci.it/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://www.notaioricci.it/images/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://www.notaioricci.it/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.notaioricci.it/images/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://www.notaioricci.it/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • http://www.notaioricci.it/images/watch-ads-for-robux_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.notaioricci.it/images/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.notaioricci.it/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.notaioricci.it/images/20210-robux_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
stream_003_off000047ae.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47AE 24052 bytes
SHA-256: 4ac1eb1ef436062d79328d027b5a7ebd64a7223fc20fcc4417c46948edcd412c
font_01_sfnt_off00007e6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E6D 18832 bytes
SHA-256: cd88061e10041738ec7274ba91306f286ba33e5d15dbcf077940b1575ec855e5

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