Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bb6a8dc08358265…

MALICIOUS

PDF

34.9 KB Created: 2021-07-02 02:03:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b4d56003c7892af469ae92ed1a657687 SHA-1: 2e66bc25365b7bea369ef32614dbd9570625e2f5 SHA-256: 0bb6a8dc08358265d0de38109dd707a015416ec3eaf361ba9c00c03c325c847b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are related to game cheats and hacks for popular games like Roblox and Minecraft. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a malicious intent to redirect users to potentially harmful content or exploit kits. The presence of a 'download button' lure further supports this. No scripts were extracted, but the overall structure and content point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/free-hair-for-boy-roblox-game-hack PDF link annotation
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-read-desc_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/como-hackear-coin-master-gratis_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/dino-sim-roblox-apk-to-albino-terror-for-free_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-tutorial-how-to-get-your-hacked-account-back_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-hack-roblox-accounts-august-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-roblox-girl-face_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/using-free-purchases-on-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/7-year-old-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/instant-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-shinobi-life-free-spins_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-coins-and-spins_GM406889139.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_off000030b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B0 22788 bytes
SHA-256: 3adfb394a1db8c807062a18f1c1f227b4ef1360ab1b1e16e0c95426a02a39a82
font_01_sfnt_off00006398.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6398 18952 bytes
SHA-256: 634e39ea7b7618053b3bb166c261bdab4e4bb8c68c4b5c00ade98f65786660ed

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