Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d8bede4223decfe…

MALICIOUS

PDF

35.0 KB Created: 2021-07-01 09:15:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 76b3fe76e65f603994284c54aa76cddb SHA-1: 3cf012802cb2b8ff7924b8b7b7bc591ab90c9877 SHA-256: 9d8bede4223decfe5c1b9bc3c7b6fea035f044cb12592f6b789fec6facfedd4e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free in-game items and hacks for popular games like Roblox and Minecraft. The embedded link, http://netcdn.co/app/431946152/roblox-free-jeff-the-killer-cape-game-hack, likely redirects to a malicious site designed to exploit user interest. While no scripts were extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt.

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/roblox-free-jeff-the-killer-cape-game-hack PDF link annotation
    • http://library.unissula.ac.id/fk/repository/hack-roblox-apocalypse-rising-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-admin-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/pubg-uc-website-india_GM1330123889.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-much-pokemon-go-free-account_GM1094591345.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-gifts-coin-master_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/roblox-lumber-tycoon-2-cheats-xbox-one_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/roblox-offline-apk-free-download_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/roblox-jailbreak-free-vip-server-link_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-hack-progamers_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/mod-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-roblox-accounts-2021-december_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/god-of-elements-roblox-element-hack_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-jeans-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-spin-in-coin-master_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_off000030b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B2 22608 bytes
SHA-256: 5ee8825b1f58696d1eaef6fa2567aaba4e2890694910d5ea0d2fd724ea1afac1
font_01_sfnt_off0000632e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x632E 19280 bytes
SHA-256: 7f4a8ab03a7d29c8c92aa18af004c19f6f793a2c73486dbcba77201a1f0eb5aa

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