Malicious PDF — malware analysis report

Static analysis result for SHA-256 d58247f00b4680f1…

MALICIOUS

PDF

57.3 KB Created: 2021-04-06 06:19:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a28ab4a448bf78bc3236e2bc87982e5b SHA-1: 9c436c094196b15ebe583388b9a30cb106959f04 SHA-256: d58247f00b4680f1d8690d46ed86c7dd4eadc85350c84c27e8af1c7d45b3d092
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a high-confidence heuristic identifying a lure for a 'free generator / game hack'. The document body, though partially corrupted, also contains references to game hacks and URLs. The presence of these lures and the ML classifier's high confidence score suggest the document is designed to trick users into visiting malicious sites, likely for malware distribution or phishing.

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
    • http://legs11.co.za/images/free-robux-youtubbe.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/speed-hack-for-roblox-download.pdfIn PDF document text
    • http://kruiz21.ru/images/how-to-hack-roblox-accounts-on-ipad-2021.pdfIn PDF document text
    • http://www.torvet11.dk/images/robloxcom-without-download-free-game.pdfIn PDF document text
    • http://lllaw.eu/images/how-to-get-free-roblox-money-easy.pdfIn PDF document text
    • http://a1scan3d.com/images/adopt-me-pets-roblox-how-to-get-free-bucks.pdfIn PDF document text
    • http://getthelook-bkk.com/images/roblox-avatar-the-last-airbender-level-hack.pdfIn PDF document text
    • http://aadvanderklaauw.nl/images/kazok-how-to-hack-roblox-accounts.pdfIn PDF document text
    • http://kids-academy.pl/images/how-to-bring-in-to-roblox-school-hack.pdfIn PDF document text
    • http://hondenspecialist-engelien.nl/images/roblox-bandit-mask-free.pdfIn PDF document text
    • https://www.milewood.co.uk/images/how-to-get-free-robux-2021-savage.pdfIn PDF document text
    • https://www.dierenartsberghman.be/images/hack-roblox-with-edit-this-cookie.pdfIn PDF document text
    • http://www.studiodamato.it/images/how-to-buy-roblox-for-free-on-windows-10.pdfIn PDF document text
    • http://reisebild.eu/images/how-do-you-hack-roblox-users.pdfIn PDF document text
    • https://www.iadh.bi/images/free-robux-with-email.pdfIn PDF document text
    • http://www.taxiaparis.fr/images/roblox-free-promo-codes-2021-not-expired.pdfIn PDF document text
    • http://jbm-constructions.com/images/free-robux-no-generator-or-survey.pdfIn PDF document text
    • http://www.web.stc-part.co.th/images/free-robux-no-survey-or-verification-2021.pdfIn PDF document text
    • http://www.brtes.com/images/john-doe-roblox-hacker-wikipedia.pdfIn PDF document text
    • http://bestmaids.co.uk/images/robux-hack-com-2021.pdfIn PDF document text
    • https://lesegais.ru/images/how-to-get-robux-2021-hack.pdfIn PDF document text
    • http://africadaily.co.za/images/roblox-shard-seekers-shard-hack.pdfIn PDF document text
    • http://pia2000.net/images/free-robux-pins-for-sale.pdfIn PDF document text
    • https://komakinosite.jp/images/free-robux-for-life.pdfIn PDF document text
    • http://harmonygardens.ca/images/account-hacker-for-roblox.pdfIn PDF document text
    • https://shimony.net/images/whow-to-hack-somebody-on-roblox.pdfIn PDF document text
    • http://steklofara.com.ua/images/pastebin-hack-for-robux.pdfIn PDF document text
    • https://www.ukrtrans.biz/images/free-roblox-clothes-templates.pdfIn PDF document text
    • http://stitchingart.com/images/free-robux-service.pdfIn PDF document text
    • http://www.evaplast.by/images/cheat-in-roblox-jailbreak-money.pdfIn PDF document text
    • http://ivalor.fr/images/roblox-hack-no-survey-or-human-verification-2021.pdfIn PDF document text
    • http://racunari.in.rs/images/free-robux-codes-get-robux.pdfIn PDF document text
    • http://jakthund.org/images/roblox-tycoon-cheats.pdfIn PDF document text
    • http://karldall.dk/images/pastebin-free-robux-10.pdfIn PDF document text
    • https://www.coriglianocalabro.it/images/robux-free-wordpress.pdfIn PDF document text
    • http://batutynas.lt/images/how-to-get-free-robux-without-playing-a-game.pdfIn PDF document text
    • http://armatrutz.de/images/racist-penguin-roblox-hack.pdfIn PDF document text
    • http://sscclc.edu.ec/images/free-robux-codes-without-human-verification.pdfIn PDF document text
    • https://www.albisser.ch/images/roblox-cbro-hack-2021.pdfIn PDF document text
    • http://hemmet-strand.dk/images/how-do-you-get-free-robux-codes.pdfIn PDF document text
    • http://agrupamentoescolas-alfredo-da-silva.com/images/cool-free-stuff-on-roblox.pdfIn PDF document text
    • http://jobsy.com.sg/images/roblox-robux-hack-2021-no-survey-no-download.pdfIn PDF document text
    • http://energotestcontrol.ru/images/free-account-whit-credit-balance-roblox.pdfIn PDF document text
    • http://kids-academy.pl/images/blockzone-site-free-robux.pdfIn PDF document text
    • http://greenemiller.com/images/free-state-of-wrttemberg-roblox.pdfIn PDF document text
    • https://technospektr.com.ua/images/secret-roblox-free-robux-code.pdfIn PDF document text
    • http://www.mjclautrec.fr/images/speed-draw-in-free-draw-roblox.pdfIn PDF document text
    • http://panaceafamilymedicine.com/images/free-robux-codes-2021-list.pdfIn PDF document text
    • https://shop.bellmann-muenzen.de/images/free-cool-hats-roblox.pdfIn PDF document text
    +16 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000080d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x80D6 26688 bytes
SHA-256: 485bbf9e71a7e72fdef5138b0e2bb0feaaa8e4fdf1e374dcabe1e388caf392da
font_01_sfnt_off0000be77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE77 17640 bytes
SHA-256: a0bade2ca499d5b22332f75e49d162ee48c4e35444e05f36cd2c4a54105e9bbd

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