Malicious PDF — malware analysis report

Static analysis result for SHA-256 c960bfbaed6cf46d…

MALICIOUS

PDF

34.6 KB Created: 2021-06-27 05:07:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 7026f3c374eaa2214a2a77fced8cac15 SHA-1: 14a558a9ae63bb367b1cc94b9efa369db26b1867 SHA-256: c960bfbaed6cf46dfd2c4cafd797f897396e33c9b92f889d28dd8de030a4c9b3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/money-cheat-roblox-rocitizens-game-hack PDF link annotation
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/roblox-free-robux-pin-code_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-hack-cbro-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/today-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/haktutsin-2021-09-coinmaster50freespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-hack-on-roblox-and-do-nasty-things_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://www.elearning.tawakkal.sch.id/__statics/gudangsoal/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/cach-co-do-free-trong-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-can-i-get-free-coinsn-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.tawakkal.sch.id/__statics/gudangsoal/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/free-spins-for-coin-masters_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_off00002fa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA6 22304 bytes
SHA-256: 0ef459fcc3f3a6e784ad09862267b4a103c9005ad5b4522009ab001b58063ee8
font_01_sfnt_off00006110.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6110 19332 bytes
SHA-256: 5df06e38cc852c21dfe0d97b791ba6d9d0022f8f00e8437dd863853b4bbec252

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