Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfcf739b5a9e1bb1…

MALICIOUS

PDF

54.7 KB Created: 2021-04-06 12:25:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 3c61fc08253e1c72e87827a277cd7935 SHA-1: 23d75282af9b08fda6436b14fe670abb9cbf41f7 SHA-256: cfcf739b5a9e1bb130d1c538ff93b6f69f33595e476f28d9a72b3e83e83db934
142 Risk Score

Malware Insights

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

The PDF document contains multiple heuristics indicating a lure for game hacks, specifically for Roblox. It directs users to external URLs that promise free in-game items or hacks. The document body, though partially corrupted, contains references to 'Free Rocket Fuel Roblox Jailbreak' and the primary malicious URL, reinforcing the social engineering tactic. The presence of numerous embedded URLs further supports the malicious intent of redirecting users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8220

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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
  • 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://pa-tanjungselor.go.id/images/roblox-hack-no-offers-2021.pdfIn PDF document text
    • https://wandersuechtig.de/images/how-to-hack-any-roblox-account-agust-2021.pdfIn PDF document text
    • http://www.fluidtech.hu/images/roblox-mining-simulator-cheats.pdfIn PDF document text
    • https://luminouswisdom.org/images/como-tener-hacks-en-roblox-prison-life.pdfIn PDF document text
    • http://getthelook-bkk.com/images/hack-for-rpg-world-on-roblox-to-get-money.pdfIn PDF document text
    • http://onlinemusicsolutions.com.au/images/neon-hacks-roblox-account-generator.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/doanting-free-robux.pdfIn PDF document text
    • http://huebner-baustoffe.de/images/free-snowman-roblox.pdfIn PDF document text
    • http://gods-own.org/images/roblox-free-draw-2-script.pdfIn PDF document text
    • https://www.manmed.info:443/images/roblox-hack-for-robux-with-out-a-veafication.pdfIn PDF document text
    • http://jaeger-bauplanung.de/images/how-to-get-free-robux-2021-on-phone.pdfIn PDF document text
    • http://algierimasonry.com/images/prison-life-roblox-hack-download-tablet.pdfIn PDF document text
    • http://www.torvet11.dk/images/how-to-get-free-cloth-roblox.pdfIn PDF document text
    • http://lksim.com/images/how-ot-hack-roblox.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/best-free-games-on-roblox.pdfIn PDF document text
    • https://javisintlmedia.com/images/change-your-skin-for-free-robux.pdfIn PDF document text
    • https://www.sitiwebjoomla.it/images/robux-tool-hack.pdfIn PDF document text
    • http://www.bripi.pl/images/free-robux-no-human-verification-mobile.pdfIn PDF document text
    • http://biccairo.com/images/speed-hack-roblox-cheat-engine-63.pdfIn PDF document text
    • http://nosocomium.rv.ua/images/a-hack-to-get-robux.pdfIn PDF document text
    • https://xn--80adfcepoood1a3b.xn--p1ai/images/free-stuff-2021-roblox.pdfIn PDF document text
    • http://force-seniorklub.dk/images/roblox-nike-shirt-template-free-shipping.pdfIn PDF document text
    • http://alcomet.ru/images/how-to-hack-roblox-mad-games.pdfIn PDF document text
    • http://escolaarboc.cat/images/roblox-account-hacked-crying.pdfIn PDF document text
    • http://www.popikalogirou-realestate.gr/images/free-emotes-in-roblox.pdfIn PDF document text
    • https://lesegais.ru/images/free-robux-website-safe.pdfIn PDF document text
    • http://demenagementlandry.com/images/roblox-free-gold-chain.pdfIn PDF document text
    • http://yogaschooldecypres.be/images/best-free-roblox-exploits-2021.pdfIn PDF document text
    • https://gomsa.nl/images/bleu-roblox-exploit-free.pdfIn PDF document text
    • https://ghpa.ru/images/roblox-cheat-ro-ghoul-2021.pdfIn PDF document text
    • http://ambingenieria.com/images/how-to-speed-hack-in-roblox-without-cheat-engine-2021.pdfIn PDF document text
    • http://cadcam.no/images/how-to-get-free-robux-no-hack-no-pastebin.pdfIn PDF document text
    • http://bkd1.balikpapan.go.id/images/free-obc-roblox-accounts-2021.pdfIn PDF document text
    • http://businessmart.ro/images/free-robux-banned.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/roblox-cheat-free-download.pdfIn PDF document text
    • http://hardbit.cn/images/gfun-games-to-hack-on-roblox.pdfIn PDF document text
    • https://belixconstructions.com.au/images/roblox-free-avatar-stuff.pdfIn PDF document text
    • http://www.fluidtech.hu/images/free-robux-test-site.pdfIn PDF document text
    • http://www.studiomilone.net/images/robux-hack-no-survey-2021.pdfIn PDF document text
    • http://schrichte.de/images/calvinkleinoverall-roblox-how-to-get-for-free.pdfIn PDF document text
    • http://www.awakeningtruth.org/images/free-robux-offer-walls.pdfIn PDF document text
    • http://hemmet-strand.dk/images/roblox-speed-hack-v3rmillion.pdfIn PDF document text
    • http://www.e-lysis.com/images/roblox-hack-tutorial.pdfIn PDF document text
    • http://kfz-werkstatt-etp.de/images/hack-roblox-block-piece-autofarm.pdfIn PDF document text
    • https://www.albisser.ch/images/btools-hack-roblox-may-2021.pdfIn PDF document text
    • http://g3galileo.com/images/free-gifts-right-now-roblox-offical-fuzion.pdfIn PDF document text
    • http://sfsbm.org/images/free-robux-no-human-verification-hack.pdfIn PDF document text
    • http://jwcrownlimo.net/images/free-bc-roblox-pastebin.pdfIn PDF document text
    • http://www.evaplast.by/images/free-hacking-for-roblox.pdfIn PDF document text
    +11 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000074a5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x74A5 26912 bytes
SHA-256: b5ccb781f372d96d2a57245b4f812898e8e6dc2f6bc87e68ad2b1afdb565dd62
font_01_sfnt_off0000b1c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1C1 18412 bytes
SHA-256: 481ccb018e36b7f5190716e8a69f5f1ab3e9036aba811cfeb2ad186131b4a992