Malicious PDF — malware analysis report

Static analysis result for SHA-256 6371722cbcdb63ae…

MALICIOUS

PDF

58.0 KB Created: 2021-04-06 06:12:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 73d0c71a7101eabf6fdfa7f77c63422c SHA-1: 308f5426ee5fc41fea2ea4898c791fb713b4aca2 SHA-256: 6371722cbcdb63aebdc8d93c11e67811de9e10762a975300c6ff2f57da48fdb3
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 0.7795

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 http://enigmagenerator.com/app/431946152/roblox-game-hack PDF link annotation
    • https://liceucastrodelapenya.com/images/free-admin-hack-roblox-kazok.pdfIn PDF document text
    • http://www.torvet11.dk/images/free-cool-clothes-on-roblox.pdfIn PDF document text
    • https://shop.bellmann-muenzen.de/images/roblox-marketplace-for-free.pdfIn PDF document text
    • http://ns1.radiofacil.net/images/cheapest-roblox-hacks.pdfIn PDF document text
    • http://unilin21.ru/images/free-gift-card-roblox-wix.pdfIn PDF document text
    • http://rwathia.com/images/free-robloxcom-accounts.pdfIn PDF document text
    • http://ernstgloves.co.il/images/roblox-gamepass-e-free.pdfIn PDF document text
    • http://osteonad.com/images/roblub-for-free-on-roblox-100-working-2021.pdfIn PDF document text
    • http://www.hawler.in/images/how-to-hack-in-skywars-roblox.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/roblox-robux-hack-february-2021.pdfIn PDF document text
    • http://onlinemusicsolutions.com.au/images/cheat-lib-roblox.pdfIn PDF document text
    • http://subarulegacy.com/images/songify-roblox-cheates.pdfIn PDF document text
    • https://pa-pangkalpinang.go.id/images/free-robux-generator-no-quiz.pdfIn PDF document text
    • http://killebergsridsport.se/images/roblox-infinite-health-hack-phantom-forces.pdfIn PDF document text
    • https://www.cosmosdawn.net/images/free-penguin-in-roblox.pdfIn PDF document text
    • https://abouttimetech.com/images/roblox-how-to-get-rid-of-the-anti-cheat.pdfIn PDF document text
    • https://www.utalii.ac.ke/images/free-robux-live-s.pdfIn PDF document text
    • https://www.yewtreealpacas.co.uk/images/free-expired-items-on-roblox.pdfIn PDF document text
    • http://vibrato.fr/images/how-to-get-free-roblox-without-downloading-anything.pdfIn PDF document text
    • https://www.saisystem.it/images/how-to-get-free-robux-inspect-no-waiting.pdfIn PDF document text
    • https://www.foodsafety.cz/images/how-do-you-get-roblox-for-free.pdfIn PDF document text
    • https://www.tsdb.com.au/images/roblox-free-purple-eye-galsse.pdfIn PDF document text
    • https://www.ergolight.at/images/800-robux-free-pub.pdfIn PDF document text
    • https://sectorpravdy.com/images/download-cheat-roblox-mod-apk.pdfIn PDF document text
    • http://progatiplastic.com/images/roblox-free-bird.pdfIn PDF document text
    • http://codicicolori.com/images/free-robux-2021-codes.pdfIn PDF document text
    • http://immo360grad.com/images/roblox-cheat-engine-hacks-2021.pdfIn PDF document text
    • https://bancroftandsons.com/images/roblox-hack-download-para-pc.pdfIn PDF document text
    • http://sealysports.com/images/free-roblox-cards-no-scam.pdfIn PDF document text
    • https://www.eglihotel.gr/images/roblox-zombie-attack-cheats.pdfIn PDF document text
    • https://www.fhccu.com/images/i-was-hacked-in-roblox.pdfIn PDF document text
    • http://wireprod.net/images/how-to-get-free-roblox-on-the-river.pdfIn PDF document text
    • http://maxvanberchem.org/images/free-robux-may-2021.pdfIn PDF document text
    • http://newbeginningsranch.net/images/no-human-verification-free-robux-generator.pdfIn PDF document text
    • https://www.bmta.co.uk/images/get-free-robux-without-offers.pdfIn PDF document text
    • http://www.arredifunebri.com/images/roblox-hack-peoples-account-2021.pdfIn PDF document text
    • http://jkcoaching.nl/images/hack-for-robux-script.pdfIn PDF document text
    • http://peche-madagascar.com/images/free-roblox-open-groups.pdfIn PDF document text
    • http://mmech.com/images/how-to-get-free-robux-easy-way.pdfIn PDF document text
    • https://www.albisser.ch/images/roblox-hacks-mega.pdfIn PDF document text
    • https://gafaseo.com/images/roblox-two-player-military-simulator-tycoon-money-hack.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/how-to-earn-free-robux-no-human-verification.pdfIn PDF document text
    • http://uctovnictvosnv.sk/images/oomg-how-to-hack-jeailbreak-on-roblox-with-proof.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/roblox-build-to-survive-zombies-cheats.pdfIn PDF document text
    • http://horsa18.ru/images/nuevo-hack-para-dragon-ball-rage-cesarius-roblox.pdfIn PDF document text
    • https://www.ghknights.org/images/free-robux-with-fake-credit-card.pdfIn PDF document text
    • http://dos.most.gov.la/images/roblox-how-to-get-a-free-dominus-hat-2021-australia.pdfIn PDF document text
    • http://caraless.com/images/greenville-roblox-hack-v3rmillion.pdfIn PDF document text
    • http://stitchingart.com/images/how-to-get-free-robux-20219.pdfIn PDF document text
    +11 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000082ff.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x82FF 26160 bytes
SHA-256: 4229f5873c888fb85df60b41b6825fb2f365fe51e804c7d0d091394b6939b16e
font_01_sfnt_off0000bd28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD28 18912 bytes
SHA-256: 1b33178c11c76f21dc0e0484746931a7b2148433885a58e7927f9e1d64f11bf4