Malicious PDF — malware analysis report

Static analysis result for SHA-256 691aa0ab652952fe…

MALICIOUS

PDF

41.1 KB Created: 2021-04-04 00:13:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 08dd9129455c59fc33e3783c49fef1ed SHA-1: 404f03b76925bd3074c1ad311c9ea49da85ba89b SHA-256: 691aa0ab652952feb7335e7d19f8fc677d995193f2d960bff5c7dee0cb85fe60
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple invisible links and visible text that lure users with promises of hacking Roblox accounts or obtaining free Robux. The ML classifier and heuristics strongly indicate malicious intent, likely to redirect users to phishing sites or download further malware. The presence of numerous URLs related to Roblox exploits suggests a targeted campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9500

Heuristics 4

  • Invisible PDF links to CAPTCHA-themed web lure high PDF_CAPTCHA_LINK_LURE
    PDF contains invisible clickable link annotations that point to a CAPTCHA/capcha-themed web path. This is a common phishing and ClickFix-style routing pattern: the PDF itself is inert, while the linked page performs the credential prompt or fake verification.
  • 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-a-roblox-account-password-2021
    • http://www.agri-tech.com.au/images/how-to-get-robux-for-free-without-human-verification-2021.pdf%0A
    • http://kruiz21.ru/images/roblox-murder-mystery-2-hack-script-gui.pdf%0A
    • http://www.zdravazena.sk/images/how-to-report-cheats-on-roblox.pdf%0A
    • http://energotestcontrol.ru/images/how-to-make-roblox-hack.pdf%0A
    • http://ns1.radiofacil.net/images/www-hacker-de-roblox.pdf%0A
    • https://www.lomrad.go.th/images/roblox-hack-no-verification-or-survey-or-download.pdf%0A
    • http://uptodate.az/images/free-robux-websites-no-scam.pdf%0A
    • http://www.maakherumusic.net/images/free-roblox-tix-hack.pdf%0A
    • https://technospektr.com.ua/images/new-free-items-in-roblox-catalog-2021.pdf%0A
    • https://esl.ipb.ac.id/images/robux-generator-no-survey-no-hack.pdf%0A
    • http://behsanroshd.com/images/hacker-roblox-bob-esponja.pdf%0A
    • https://waterpark.by:443/images/roblox-dynamic-ship-simulator-iii-money-hack.pdf%0A
    • https://tokunfome.com.br/images/playing-games-that-give-free-robux.pdf%0A
    • http://nevesomost.by/images/how-to-get-robux-with-cheat-engine.pdf%0A
    • https://www.air-shop.cz/images/free-stuff-in-the-roblox-catalog.pdf%0A
    • http://baah.ca/images/roblox-jailbreak-outwitt-hacks.pdf%0A
    • https://www.brainpads.com/images/roblox-free-airport.pdf%0A
    • https://technospektr.com.ua/images/how-to-get-a-free-knife-in-roblox-assassin.pdf%0A
    • http://www.zdravazena.sk/images/how-to-get-free-knife-in-csgo-roblox.pdf%0A
    • https://www.mrsz.ir/images/games-to-get-free-items-in-roblox.pdf%0A
    • http://ff-obertraun.at/images/roblox-got-talent-piano-hack-script.pdf%0A
    • https://www.najeebqasmi.com/images/unlimited-roblox-hack-script.pdf%0A
    • http://internetdeputy.com/images/how-to-hack-roblox-to-where-you-can-fly.pdf%0A
    • http://portal.crfsp.org.br/images/play-free-robux.pdf%0A
    • http://www.anies.eu/images/how-to-hack-roblox-paintball-rank.pdf%0A
    • https://www.cnte.org.br/images/best-free-buildings-in-roblox-studio.pdf%0A
    • https://consorziocsa-asicaivano.it/images/roblox-money-cheats-2021.pdf%0A
    • https://www.porthos.it/images/how-to-hack-in-roblox-without-recaptcha.pdf%0A
    • http://www.copoint.co.uk/images/free-gametestrobloxcom-accounts.pdf%0A
    • http://ernstgloves.co.il/images/online-robux-hack-no-download.pdf%0A
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000473b.bin
190de1dc420aaf8a5480296dd129152cc815a68f6f57455d6ac1315f1ce641a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x473B 23508 bytes
font_01_sfnt_off00007b0d.bin
793d59a11acadfe9e7b3db13022d569c7b76dc3293b309c3e18dbfd8081966b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B0D 18916 bytes

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