Malicious PDF — malware analysis report

Static analysis result for SHA-256 255af3f39d41367a…

MALICIOUS

PDF

54.1 KB Created: 2021-04-06 23:51:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 95d8580486cd7a0c62b70123dd27808c SHA-1: d124571a9b08a06d7eca54afa293c4b0c62d2d17 SHA-256: 255af3f39d41367a10e26da4942ab2a9f25e861946fa2c6e65147bc0ca5526df
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 0.8413

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 https://enigmagenerator.com/app/431946152/roblox-game-hack PDF link annotation
    • http://www.fanciullovito.it/images/how-to-get-free-robux-for-real.pdfIn PDF document text
    • http://ff-obertraun.at/images/ban-roblox-pour-avoir-hack-des-robux.pdfIn PDF document text
    • https://reggieslockandkey.com/images/robux-hack-no-verification-or-survey-2021.pdfIn PDF document text
    • https://www.romedia.gr/images/como-ser-un-hacker-en-house-of-keys-roblox.pdfIn PDF document text
    • https://www.solucionesdigit.com/images/how-do-i-get-free-stuff-on-roblox.pdfIn PDF document text
    • http://www.torvet11.dk/images/easiest-to-download-hacks-for-roblox.pdfIn PDF document text
    • http://grabmyinfo.com/images/roblox-hack-generator-without-human-verification.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/is-there-a-free-way-to-earn-robux.pdfIn PDF document text
    • https://www.yewtreealpacas.co.uk/images/how-to-hack-roblox-with-chrome-extensions.pdfIn PDF document text
    • http://the-specials.ch/images/como-hackear-la-cuenta-de-tus-amigos-roblox.pdfIn PDF document text
    • http://nouveaupavillon.fr/images/cheat-codes-pegboard-nerds-roblox-music.pdfIn PDF document text
    • http://escolaarboc.cat/images/hacks-for-booga-booga-roblox.pdfIn PDF document text
    • http://moto98.com/images/how-can-i-get-free-robux.pdfIn PDF document text
    • http://keepcasscountybeautiful.com/images/power-simulator-roblox-hack-mod-menu.pdfIn PDF document text
    • https://schaefer-rechtsanwaelte.com/images/hack-roblox-2021-script.pdfIn PDF document text
    • http://www.occquimica.com.br/images/hack-final-stand-roblox.pdfIn PDF document text
    • http://www.kendo.gr/images/riot-police-roblox-free.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/free-robux-no-survey-or-deals.pdfIn PDF document text
    • https://www.seeingindependence.org/images/free-roblox-redd.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/the-only-working-way-to-get-free-robux.pdfIn PDF document text
    • https://allpi.int/images/roblox-free-game-app.pdfIn PDF document text
    • https://www.udivadlahotel.cz/images/no-clip-hacks-roblox-wall-hack.pdfIn PDF document text
    • http://legs11.co.za/images/free-acounta-for-roblox.pdfIn PDF document text
    • http://ralf-gryga.de/images/roblox-obby-that-gives-you-free-robux.pdfIn PDF document text
    • https://www.audipec.com.br/images/hack-account-roblox-2021-edit-this-cookies.pdfIn PDF document text
    • https://www.hotschool.com.au/images/earn-robux-today-free-watching-ads.pdfIn PDF document text
    • http://brandyourbody.com/images/how-to-use-cheat-engine-undetected-on-roblox.pdfIn PDF document text
    • https://www.sitiwebjoomla.it/images/roblox-admin-tools-hack.pdfIn PDF document text
    • http://vokna.by/images/free-robux-24-info.pdfIn PDF document text
    • http://dermaceutic.co.uk/images/cheat-roblox-2021-argent.pdfIn PDF document text
    • https://www.tsdb.com.au/images/free-face-roblox-youtube.pdfIn PDF document text
    • http://pdia.de/images/link-hacks-madpaintball-roblox.pdfIn PDF document text
    • http://xn----7sbq6amdnuk.xn--p1ai/images/hack-roblox-ios.pdfIn PDF document text
    • http://samfora.de/images/roblox-the-scary-elevator-red-key-locations-cheat-sheet.pdfIn PDF document text
    • https://gomsa.nl/images/free-pants-roblox-boy.pdfIn PDF document text
    • http://hydroconseil.net/images/roblox-admin-panel-robux-hack.pdfIn PDF document text
    • http://www.malonmalon.com.ar/images/free-robux-no-hacking-2021.pdfIn PDF document text
    • https://photographygroupofbunbury.com/images/city-architect-roblox-cheats.pdfIn PDF document text
    • http://belagrogen.by/images/el-mejor-hack-de-roblox-del-mundio.pdfIn PDF document text
    • http://asiasieja.pl/images/how-to-hack-in-teaming-bit-survivor-roblox.pdfIn PDF document text
    • http://aupp.com.au/images/free-robux-inpect-console-working.pdfIn PDF document text
    • http://elllanorestaurants.com/images/roblox-teleport-cheat.pdfIn PDF document text
    • http://iedarelief.us/images/free-robux-for-real-2021.pdfIn PDF document text
    • http://www.art-concept.gr/images/bloxy-world-for-free-robux.pdfIn PDF document text
    • http://www.web.stc-part.co.th/images/6lack-free-roblox-id.pdfIn PDF document text
    • https://piscinasmundoacuatico.com/images/pastebin-roblox-speed-hack.pdfIn PDF document text
    • http://fairwaygolftravel.co.uk/images/how-to-buyt-any-item-for-free-roblox.pdfIn PDF document text
    • https://pneukalousek.cz/images/roblox-how-to-noclip-with-cheat-engine-64.pdfIn PDF document text
    • http://www.eptaviation.com/images/how-to-hack-any-game-on-roblox-with-cheat-engine.pdfIn PDF document text
    +15 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00007165.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7165 26076 bytes
SHA-256: 4cd56957515db3e1b9ea542a3f4203a25e2d46172e299a0e0260fa28176072d4
font_01_sfnt_off0000acd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACD0 19220 bytes
SHA-256: 45f9dc318080fbd00d108658c24262cd44de7e8a0f53e9c11b94f66033cb4218

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