Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fe375b7123f86c7…

MALICIOUS

PDF

34.1 KB Created: 2021-06-20 03:18:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: ecb243fba7cb0414dd1bae6a5b148241 SHA-1: 7466efde80d5655f8efda4c652a99e7f74214f78 SHA-256: 9fe375b7123f86c764c89356ac72b61d3a2754cdad6d001eeb9988f47976f4a6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to sites offering game hacks and currency generators, such as 'how-to-hack-a-roblox-account-quick-game-hack'. The presence of these lures, combined with a high ML classifier score, strongly suggests a phishing or malware distribution attempt. No scripts were extracted, but the document's structure and content indicate a social engineering tactic to trick users into visiting malicious sites.

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.co/app/431946152/how-to-hack-a-roblox-account-quick-game-hack PDF link annotation
    • http://digilib.stie-yppi.ac.id/repository/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/redeem-robux-card-free_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/roblox-demon_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-gold-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/2021-free-robux-daily-hack-created-by-robuxian_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/breaking-point-tips-and-tricks-and-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/how-to-hack-m-coins-mcpe-master_GM406889139.pdfIn PDF document text
    • http://digilib.stie-yppi.ac.id/repository/free-coin-and-spin-for-coin-master_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
font_00_sfnt_off00002faf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAF 21632 bytes
SHA-256: 3968f09f0d8b2fdc7fc0747a9c313cc457e4f2dc1ae3c94d56094349ce7505c3
font_01_sfnt_off00005f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F25 19340 bytes
SHA-256: b9e896104e0547f468fc5cfa550a5a6d82deec985e0ac390f1fdd4856fe2dfd8

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