Malicious PDF — malware analysis report

Static analysis result for SHA-256 8869a1eb28ba23ac…

MALICIOUS

PDF

53.4 KB Created: 2021-04-06 23:25:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 536cc6c5d0b1409679dbb8ac3008e365 SHA-1: 1487f63a85f8d181dd352a2c2d831596845c3986 SHA-256: 8869a1eb28ba23ac08132c5c011be1497eb2702831f4c8e77436b7898c2c39ee
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document uses a social engineering lure related to 'free Robux' and 'game hacks' to entice users to click on external links. The document body and heuristics indicate a strong intent to redirect users to malicious websites, likely for malware download or credential harvesting. No scripts were extracted, but the embedded URLs and the 'browser extension/update installation lure' heuristic suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8721

Heuristics 6

  • 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.
  • 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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 https://enigmagenerator.com/app/431946152/roblox-game-hack PDF link annotation
    • http://nevesomost.by/images/have-i-been-hacked-on-roblox.pdfIn PDF document text
    • http://pourvosvacances.com/images/free-robux-quick-and-easy-2021-no-human-verification.pdfIn PDF document text
    • http://dialine.cz/images/how-to-get-free-roblox-in-2021.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/free-roblox-generator-download.pdfIn PDF document text
    • https://www.ncscolour.no/images/roblox-parkour-point-hack.pdfIn PDF document text
    • http://halal-center.ru/images/earn-robux-today-hack.pdfIn PDF document text
    • http://brokermortgages.com/images/youtube-how-to-hack-roblox-to-get-robux.pdfIn PDF document text
    • http://advancedaudiosystems.org/images/free-robux-no-money-needed.pdfIn PDF document text
    • http://gvtssp.org/images/how-to-hack-a-roblox-account-on-phone.pdfIn PDF document text
    • http://finettifrs.it/images/free-robux-100-legit.pdfIn PDF document text
    • http://jdlwealth.com/images/roblox-superhero-simulator-hack-script-pastebin.pdfIn PDF document text
    • https://schulzpressetext.de/images/roblox-parkour-hack-2021-script.pdfIn PDF document text
    • http://jenne-technik.de/images/video-hacker-roblox-francais.pdfIn PDF document text
    • https://www.romedia.gr/images/roblox-25-robux-free.pdfIn PDF document text
    • http://www.herbasacra.gr/images/boku-no-roblox-hack-quirk-vermillion.pdfIn PDF document text
    • https://bapalaye.org/images/how-to-hack-anybody-on-roblox.pdfIn PDF document text
    • http://restarmenia.com/images/roblox-windows-10-hack.pdfIn PDF document text
    • http://micromegamondo.com/images/robux-hack-no-human-verification-or-download.pdfIn PDF document text
    • http://immobil-service.it/images/free-robux-earning-sites.pdfIn PDF document text
    • http://eddegrootassurantien.nl/images/roblox-dinosaur-world-progression-cheat.pdfIn PDF document text
    • http://teknotools.net/images/roblox-prison-life-free-kill.pdfIn PDF document text
    • https://www.mvp.co.nz/images/roblox-cheat-dll-phantom-forces.pdfIn PDF document text
    • https://uofk.edu/images/hack-sharkbite-roblox.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/cool-roblox-avatar-for-free.pdfIn PDF document text
    • http://giolantapepe.gr/images/how-to-get-free-robux-on-roblox-no-hack.pdfIn PDF document text
    • http://dsmpublishing.biz/images/roblox-driveblox-unlimited-money-cheat.pdfIn PDF document text
    • http://pdapanache.com/images/how-to-get-free-robux-no-human-verification-ios.pdfIn PDF document text
    • https://sectorpravdy.com/images/roblox-mad-city-hack-deutsch.pdfIn PDF document text
    • https://winterpol.eu/images/free-roblox-pin-generator.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/get-free-robux-with-no-survey.pdfIn PDF document text
    • http://legs11.co.za/images/granny-roblox-games-for-free.pdfIn PDF document text
    • https://www.dachytarasowe.eu/images/gg-hack-client-roblox.pdfIn PDF document text
    • http://instrumenttut.by/images/get-free-robux-by-number.pdfIn PDF document text
    • http://greasley.website/images/free-roblox-generatr-accounts.pdfIn PDF document text
    • https://www.lomrad.go.th/images/roblox-guest-clothes-free.pdfIn PDF document text
    • http://pgk-polaniec.pl/images/how-to-get-free-robux-without-downloading-an-app.pdfIn PDF document text
    • https://teatrofinisterrae.cl/images/how-to-hack-an-old-roblox-account.pdfIn PDF document text
    • http://www.cosver.nl/images/game-free-robux-2021.pdfIn PDF document text
    • http://pianoservice.com.ua/images/how-to-get-limiteds-on-roblox-for-free.pdfIn PDF document text
    • http://bi-bordtennis.dk/images/how-to-get-robux-easy-and-free.pdfIn PDF document text
    • http://www.eurosan1.ba/images/bloxpage-free-robux.pdfIn PDF document text
    • http://www.nicoifruttidelchicco.org/images/how-to-get-free-robux-from-cash-for-apps.pdfIn PDF document text
    • http://halal-center.ru/images/cant-play-any-game-roblox-gor-hacked.pdfIn PDF document text
    • http://bemviverclin.com.br/images/roblox-speed-hack-2021-october.pdfIn PDF document text
    • https://datavoiz.com/images/i-think-someone-tried-to-hacked-my-roblox-account.pdfIn PDF document text
    • http://www.torvet11.dk/images/roblox-ar-hacks-codes.pdfIn PDF document text
    • http://bau-lk.de/images/tutorial-hack-roblox-robux.pdfIn PDF document text
    • http://moringaforlove.com/images/que-hacer-cuando-te-hackean-roblox.pdfIn PDF document text
    • http://boliviagasenergia.com/images/free-robux-and-tix-generator-2021.pdfIn PDF document text
    +21 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000070eb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x70EB 25864 bytes
SHA-256: 6c6790a9bc4dc21990769d6c84358b333d3bfa1d651f892a61325ad7b9b554b1
font_01_sfnt_off0000aae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAE7 18856 bytes
SHA-256: 90f1e984c3c5471f6441fdbf69650d7805033f8db91f468558c29c3cc1eca1a2