Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e5c9417f63b3e5…

MALICIOUS

PDF

46.2 KB Created: 2021-06-09 13:41:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1a63c30eab3d6a1e6e5a9f7d612d1b30 SHA-1: 08839b5d73dfae32ac09802ce254fd9e9e46fc82 SHA-256: d7e5c9417f63b3e5a083916ead4b20ce09ab9100812f1dc81ebe361c05647ef0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free generator / game hack' which directs users to a suspicious URL. This indicates a likely attempt to trick users into visiting a malicious site, potentially for malware distribution or phishing. No scripts were extracted, but the embedded URI and the nature of the lure strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9768

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.tw/app/431946152/money-for-roblox-strucid-free-game-hack PDF link annotation
    • http://www.digilib.uim.ac.id/repository/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/rbx-roblox_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-stuff-on-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/earn-free-robux-for-roblox-bux-city_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-free-coins-and-spins-group_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-likes-on-tiktok-no-verification_GM835599320.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/hacked-text-to-roblox_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000052a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52A9 25748 bytes
SHA-256: b8332ce84a2da5cd3489e8ba207941121782b0fc5746ed07e8fb0dc9ea5ff849
font_01_sfnt_off00008e50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E50 19548 bytes
SHA-256: 7bb73b73fee280df784663c5abc0ae551242e0d3fb73678c0afb344edc423ef6

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