Malicious PDF — malware analysis report

Static analysis result for SHA-256 a78e403820676743…

MALICIOUS

PDF

45.8 KB Created: 2021-04-02 11:20:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: f69616d57e759a94cdc778b64f7e31aa SHA-1: b674d10e3dd5214f0a97c0b019f863e604941048 SHA-256: a78e403820676743d4ae54ce5e8e0e93b28c687db9a433ac075fd7af39671398
132 Risk Score

Malware Insights

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

The PDF document contains numerous links to websites that promise game hacks and free in-game currency, specifically targeting Roblox. The heuristic PDF_GAME_HACK_SEO_LINK_FARM indicates a link farm designed for SEO manipulation, likely to lure users to malicious sites. While no scripts were extracted, the document's structure and embedded URLs suggest it's designed to trick users into visiting potentially harmful websites, which could lead to credential theft or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8981

Heuristics 5

  • 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.
  • 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/how-to-hack-robux-with-robux-generator PDF link annotation
    • http://www.mjclautrec.fr/images/roblox-birthday-invitation-free.pdfIn PDF document text
    • http://www.exikom.com.ua/images/how-to-get-everything-for-free-in-roblox.pdfIn PDF document text
    • http://www.gadanie.lv/images/i-sleep-roblox-hack-oh-shi.pdfIn PDF document text
    • http://www.torvet11.dk/images/free-robux-giveaway-youtube.pdfIn PDF document text
    • https://eddar.fr/images/how-to-cheat-in-growing-up-simulator-in-roblox.pdfIn PDF document text
    • https://www.dierenartsberghman.be/images/roblox-hack-account-2021.pdfIn PDF document text
    • http://www.eurosan1.ba/images/how-to-hack-roblox-2021-december.pdfIn PDF document text
    • https://eddar.fr/images/roblox-hack-ohne-menschliche-verzierungen.pdfIn PDF document text
    • http://lib.sssu.ru/images/free-roblox-accounts-with-passwords-2021.pdfIn PDF document text
    • https://www.sinaloadiario.mx/images/roblox-joined-hack-script.pdfIn PDF document text
    • https://www.hotschool.com.au/images/how-to-buy-clothes-in-roblox-xbox-1-free.pdfIn PDF document text
    • https://technospektr.com.ua/images/how-to-bypass-roblox-with-cheat-engine.pdfIn PDF document text
    • https://www.udivadlahotel.cz/images/how-to-aimbot-hack-on-roblox.pdfIn PDF document text
    • http://pa-tanjungselor.go.id/images/free-robux-hack-quick-and-easy.pdfIn PDF document text
    • http://www.eaapiaria.es/images/roblox-codes-cheats.pdfIn PDF document text
    • http://lax.co.in/images/roblox-free-exploit-executor.pdfIn PDF document text
    • https://www.hotschool.com.au/images/roblox-hacks-and-cheats-that-work.pdfIn PDF document text
    • http://www.evaplast.by/images/roblox-how-to-enter-cheat-codes.pdfIn PDF document text
    • http://www.eurosan1.ba/images/roblox-hacked-pour-avoir-des-robux-2021.pdfIn PDF document text
    • http://www.bg-da.eu/images/free-t-shirt-roblox-catalog.pdfIn PDF document text
    • http://www.inservis.cl/images/how-to-get-free-robux-from-slingtv.pdfIn PDF document text
    • http://www.marambio.com.ar/images/free-robux-now-no-human-verification.pdfIn PDF document text
    • http://www.boic.nl/images/free-robux-group-may-2021.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/stream-snipe-hack-roblox.pdfIn PDF document text
    • http://sscclc.edu.ec/images/how-to-hack-a-roblox-accounts.pdfIn PDF document text
    • https://www.sitiwebjoomla.it/images/free-coloring-pages-for-roblox.pdfIn PDF document text
    • https://eddar.fr/images/how-to-get-free-robux-without-doing-anything.pdfIn PDF document text
    • http://echosvoix.ch/images/roblox-prison-life-cheats.pdfIn PDF document text
    • http://www.rezbb.sk/images/free-robux-codes-no-verification-2021.pdfIn PDF document text
    • http://aeroclub-kaernten.at/images/free-robux-hack-by-justin-master.pdfIn PDF document text
    • http://www.htc.edu.au/images/boosted-gamer-roblox-hack.pdfIn PDF document text
    • https://www.intro-marketing.hr/images/roblox-dll-hacking.pdfIn PDF document text
    • http://echosvoix.ch/images/free-boat-ride-roblox.pdfIn PDF document text
    • http://domaizdereva24.ru/images/roblox-is-going-to-be-hacked-march-18th.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/roblox-making-other-people-chat-hack.pdfIn PDF document text
    • https://www.modellflug-mieming.at/images/roblox-robux-birth-day-hack.pdfIn PDF document text
    • http://www.anies.eu/images/cosas-free-en-roblox.pdfIn PDF document text
    • https://technospektr.com.ua/images/how-to-gte-free-robux-codes-for-pc-2021-october.pdfIn PDF document text
    • https://www.albisser.ch/images/roblox-free-robux-obby-link.pdfIn PDF document text
    • https://www.bmtools.ru/images/how-to-get-free-rs-on-roblox.pdfIn PDF document text
    • http://pa-tanjungselor.go.id/images/how-to-hack-on-roblox-2021.pdfIn PDF document text
    • https://www.hbproducts.dk/images/robux-gratis-2021-hack.pdfIn PDF document text
    • http://sscclc.edu.ec/images/download-roblox-on-ps4-free.pdfIn PDF document text
    • http://escolaarboc.cat/images/free-robux-pins-not-used-2021.pdfIn PDF document text
    • http://almidonesdesucre.com.co/images/roblox-hack-download-deutsch.pdfIn PDF document text
    • http://cappella-nova.de/images/free-robux-promo-codes-2021-october.pdfIn PDF document text
    • https://www.academiedespa.be/images/hack-para-roblox-jailbreak.pdfIn PDF document text
    • https://www.antonov2.ch/images/new-roblox-sk9r-level7-hack-exploit.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/how-2-get-free-robux-on-roblox.pdfIn PDF document text
    +2 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00005909.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5909 23292 bytes
SHA-256: dc1e31f16a8d4f070a23334d1d2c2d2aa759958f9aee8232d589cb36da7c7e79
font_01_sfnt_off00008dcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DCB 18536 bytes
SHA-256: f1b1b511b6e9e1f59a4ab6cc85bbef3e783a507b5826e156cd0313dd8deeef70