Malicious PDF — malware analysis report

Static analysis result for SHA-256 63ac73c8dff8bfd0…

MALICIOUS

PDF

67.6 KB Created: 2021-04-05 21:43:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: beffbc66a0ff5f514fcbd591b1cc33bd SHA-1: b3f270cb48f04351e7151cced2e388572fa02c23 SHA-256: 63ac73c8dff8bfd0b64210c7ca2a3b828092bd83725d9edb10f226ced136431d
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to websites offering game hacks and free in-game currency, specifically targeting Roblox. Heuristics indicate a link farm designed for SEO manipulation and social engineering, with a high-signal finding for a browser extension/update installation lure. While no scripts were extracted, the embedded URLs and the nature of the lures suggest the document is intended to trick users into visiting malicious sites that may host further exploits or lead to malware downloads.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2578

Heuristics 6

  • PDF carries distributed game-hack scam link farm critical PDF_GAME_HACK_SEO_LINK_FARM
    PDF contains a free-generator/game-hack lure together with many external PDF links spread across distinct hosts whose filenames advertise game hacks, cheats, jailbreaks, generators, or free currency. This is a high-confidence scam/SEO-poisoning carrier: the PDF exists to route users into malicious or unwanted download/redirect chains, not to present normal document content.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • PDF carries game-hack generator link farm medium PDF_GAME_HACK_LINK_FARM
    PDF contains a gaminggenerator.org app lure together with multiple external PDF links whose filenames advertise game hacks, cheats, jailbreaks, or generators. This is a lure/delivery link farm rather than a PDF exploit: the risk is the linked redirection chain.
  • 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://gaminggenerator.org/app/431946152/field-of-battle-hack-roblox-2021 PDF link annotation
    • http://www.drent.se/images/how-to-get-game-passes-on-roblox-for-free.pdfIn PDF document text
    • http://serviio.org/images/how-to-spawn-hack-in-apocalypse-rising-roblox-2021.pdfIn PDF document text
    • https://technospektr.com.ua/images/hacks-para-roblox-xbox-one.pdfIn PDF document text
    • http://schlossschaenke-andernach.de/images/roblox-how-to-get-free-robux-on-ipad-2021.pdfIn PDF document text
    • http://iricamidelcuore.it/images/free-robux-codes-june-2021.pdfIn PDF document text
    • http://chartsmart.com.au/images/site-hack-roblox-xbox.pdfIn PDF document text
    • http://svp-steinmaur.ch/images/hack-robux-2021.pdfIn PDF document text
    • http://muko-unterfranken.info/images/free-robux-codes-not-used-2021-july.pdfIn PDF document text
    • http://echosvoix.ch/images/free-roblox-noclip-hacks.pdfIn PDF document text
    • http://vagency.us/images/easy-earn-free-robux.pdfIn PDF document text
    • https://bancroftandsons.com/images/how-to-get-free-robux-no-human-verification.pdfIn PDF document text
    • http://vagency.us/images/how-to-get-private-servers-on-roblox-free.pdfIn PDF document text
    • http://reisebild.eu/images/hack-roblox-volar.pdfIn PDF document text
    • https://arcasict.nl/images/roblox-collect-free-liverpool-scarf.pdfIn PDF document text
    • https://www.udivadlahotel.cz/images/give-me-robux-for-free-now.pdfIn PDF document text
    • http://ernstgloves.co.il/images/cmo-ser-hacker-en-roblox.pdfIn PDF document text
    • http://force-seniorklub.dk/images/hack-client-roblox-may-2021-injectors.pdfIn PDF document text
    • http://axia-verlag.at/images/robux-free-clothes.pdfIn PDF document text
    • http://peche-madagascar.com/images/how-to-het-free-robux-2021.pdfIn PDF document text
    • http://www.lycee-langevin-wallon.com/images/how-to-get-free-robux-no-verifaction-or-servey.pdfIn PDF document text
    • https://www.ncscolour.no/images/free-roblox-paddwords-cracker.pdfIn PDF document text
    • http://nikabio.com/images/new-roblox-logo-gives-free-robux.pdfIn PDF document text
    • http://www.rezbb.sk/images/sentinel-hack-roblox.pdfIn PDF document text
    • http://condit-pack.com/images/hacking-denisdaily-roblox.pdfIn PDF document text
    • http://www.fabbrotorino.eu/images/how-to-get-free-shirts-on-roblox-2021.pdfIn PDF document text
    • http://asiashop-france.fr/images/vheachle-simulator-cheats-roblox.pdfIn PDF document text
    • http://killebergsridsport.se/images/inject-hack-roblox-2021.pdfIn PDF document text
    • http://lewishome.net/images/hack-de-roblox-robux-infinitas-2021.pdfIn PDF document text
    • https://amatq.ca/images/free-robux-cards-2021-march.pdfIn PDF document text
    • http://learningarabic.co.uk/images/how-to-hack-roblox-admins.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/hacked-skybox-roblox.pdfIn PDF document text
    • https://amatq.ca/images/free-robux-codes-no-verfacation-no-survey.pdfIn PDF document text
    • http://www.apocalissedigesucristo.com/images/free-long-good-roblox-names-for-boys.pdfIn PDF document text
    • http://portal.crfsp.org.br/images/sonydeveloper-hacking-on-roblox.pdfIn PDF document text
    • https://servotecnica.com/images/all-free-idums-in-roblox.pdfIn PDF document text
    • http://uo-nn.ru/images/cheats-roblox-counter-strike-wallhack-aimbot.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/free-robux-codes-march-2021.pdfIn PDF document text
    • http://apcupschennai.com/images/how-to-hack-roblox-mobile.pdfIn PDF document text
    • http://daksz.hu/images/how-to-get-free-robux-cards.pdfIn PDF document text
    • http://bilhetim.com.br/images/free-robux-no-surverys.pdfIn PDF document text
    • https://belixconstructions.com.au/images/how-to-get-admin-on-roblox-for-free.pdfIn PDF document text
    • https://aniruddhasadm.com/images/final-stand-roblox-hack.pdfIn PDF document text
    • https://www.osoc.com/images/hack-dragon-ball-rage-roblox-2021.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/how-to-hack-roblox-accounts-on-phone.pdfIn PDF document text
    • https://www.yewtreealpacas.co.uk/images/account-roblox-free-2021.pdfIn PDF document text
    • https://www.wadowice24.pl/images/mc-the-miner-freee-robux-hack.pdfIn PDF document text
    • http://famoirs.co.uk/images/how-to-hack-free-stuff-in-catalog-in-roblox.pdfIn PDF document text
    • http://cristalysoptic.com/images/roblox-how-to-get-into-paid-access-games-for-free.pdfIn PDF document text
    • https://www.bmta.co.uk/images/how-to-get-490-robux-for-free.pdfIn PDF document text
    +17 more URL(s)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000083da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83DA 25016 bytes
SHA-256: de412ebf92fc2ac4d2dbb72ab9d33b18ba3c346fadbf87e2c7cb59c64e516d21
font_01_sfnt_off0000bcd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCD2 3432 bytes
SHA-256: dc3a8b572b5ff7f33d2d451084fd4a516bce1e74802bfd4eb2ad5589aa45cf26
font_02_sfnt_off0000c89f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC89F 11440 bytes
SHA-256: 154d59d1680f2d1e38ccb783d6997f344290d121007e51df331726de4128c12e
font_03_sfnt_off0000e3c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C1 18520 bytes
SHA-256: 266557569a80eeb4a6f7a9eb286a478ada5da7193e2c4f7b5089a58bc7c3b4e5