Malicious PDF — malware analysis report

Static analysis result for SHA-256 c65ec3b00b84f354…

MALICIOUS

PDF

54.0 KB Created: 2021-04-06 17:05:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 47d3a0cdae72231cf5f180fffe3b32d9 SHA-1: 378c9103911af551db95531589fe94d7ac37dda3 SHA-256: c65ec3b00b84f354a262fd5a714db5fd4c03fc1be3c76771e966bd4c25afcff9
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple heuristics indicating it is a lure for game hacks, specifically targeting Roblox. It embeds numerous URLs, with the primary one being 'https://enigmagenerator.com/app/431946152/roblox-game-hack', which is likely a malicious redirector or phishing page. The document body, though partially corrupted, also contains references to this URL and other suspicious links. No scripts were extracted, but the PDF structure and embedded URIs strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8413

Heuristics 4

  • 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.
  • 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://safetin.ru/images/are-the-surveys-for-free-robux-real.pdfIn PDF document text
    • https://bancroftandsons.com/images/roblox-books-for-free.pdfIn PDF document text
    • http://msfs-eastafrica.com/images/app-free-robux-google-play.pdfIn PDF document text
    • http://peche-madagascar.com/images/can-someone-hack-you-if-you-report-on-roblox.pdfIn PDF document text
    • http://www.hawler.in/images/murder-island-hack-roblox.pdfIn PDF document text
    • http://force-seniorklub.dk/images/how-to-hack-and-get-robux-2021.pdfIn PDF document text
    • http://kruiz21.ru/images/free-robux-no-apps-needed.pdfIn PDF document text
    • https://www.alu-as.cz/images/roblox-cheat-indetectable.pdfIn PDF document text
    • https://www.wijhalenhetop.nl/images/robux-cheat-2021.pdfIn PDF document text
    • http://arkivthy.dk/images/free-robux-no-verification-required.pdfIn PDF document text
    • https://www.yewtreealpacas.co.uk/images/can-you-please-give-me-free-robux.pdfIn PDF document text
    • http://aeroclub-kaernten.at/images/roblox-parkour-hack-2021-script.pdfIn PDF document text
    • http://www.drent.se/images/get-free-robux-without-downloading-games.pdfIn PDF document text
    • http://ff-obertraun.at/images/free-roblox-injector-hack.pdfIn PDF document text
    • http://eooe.gr/images/how-do-you-hack-on-roblox-mad-paintball.pdfIn PDF document text
    • https://ceranique.nl/images/free-roblox-accounts-with-robux-2021-may.pdfIn PDF document text
    • http://abletrustcare.com/images/robux-hack-no-survey-no-verification-2021.pdfIn PDF document text
    • https://sitam.co.in/images/full-server-hack-roblox.pdfIn PDF document text
    • https://ballaratcaravans.com.au/images/free-roblox-account-email-and-password.pdfIn PDF document text
    • http://medicalafrica.net/images/does-roblox-allow-free-rebux-websites.pdfIn PDF document text
    • http://principessalialaofegypt.com/images/how-do-you-get-free-robux-on-roblox-2021.pdfIn PDF document text
    • https://www.brainpads.com/images/roblox-free-robux-codes-on-ipad.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/how-to-do-personalized-t-shirts-in-roblox-free.pdfIn PDF document text
    • http://www.mikramarine.gr/images/how-to-get-free-robux-april-2021-pc.pdfIn PDF document text
    • http://kaleasm.org/images/get-free-robux-by-watching-videos.pdfIn PDF document text
    • http://selectionspdf.fr/images/begone-nerds-roblox-hacking.pdfIn PDF document text
    • http://greasley.online/images/animation-free-roblox.pdfIn PDF document text
    • http://joegibara.com.au/images/roblox-tower-of-hell-cheat.pdfIn PDF document text
    • http://www.campiresine.it/images/hacked-t-shirt-roblox.pdfIn PDF document text
    • https://www.cfdcnv.com/images/roblox-game-where-you-hack-computers.pdfIn PDF document text
    • http://www.lacarla.dk/images/free-robux-inspect-element-no-waiting-2021.pdfIn PDF document text
    • http://www.zdravazena.sk/images/free-working-robux-generator-no-survey.pdfIn PDF document text
    • http://jdleducation.com/images/guest-free-roblox.pdfIn PDF document text
    • http://agroturismoarkaia.com/images/robux-hack-not-patched.pdfIn PDF document text
    • http://elzet-opakowania.pl/images/robloxcom-how-to-get-free-robux-only-today-ad.pdfIn PDF document text
    • http://pa-tanjungselor.go.id/images/voodygamescom-roblox-hack.pdfIn PDF document text
    • http://sportagon.be/images/broken-bones-4-roblox-hack.pdfIn PDF document text
    • https://pneukalousek.cz/images/hack-para-roblox-hack-exploit.pdfIn PDF document text
    • http://uptodate.az/images/free-pets-adopt-me-roblox.pdfIn PDF document text
    • http://www.boic.nl/images/how-to-hack-peoples-account-on-roblox-2021.pdfIn PDF document text
    • https://www.osoc.com/images/robux-maniac-com-free-robux.pdfIn PDF document text
    • http://ottawavalleykitchens.ca/images/free-robux-to-vbucks-translator.pdfIn PDF document text
    • http://svp-steinmaur.ch/images/roblox-how-to-get-any-ingame-tool-hack.pdfIn PDF document text
    • http://reisebild.eu/images/how-to-get-admin-commands-on-roblox-hack.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/roblox-code-card-free-sin-verification.pdfIn PDF document text
    • https://pneukalousek.cz/images/roblox-how-to-noclip-with-cheat-engine-64.pdfIn PDF document text
    • https://pagadder.com/images/dress-roblox-free.pdfIn PDF document text
    • http://pacatuamigo.com/images/roblox-buddy-me-free-robux.pdfIn PDF document text
    • http://beer-holzhaus.ch/images/hack-atravesar-paredes-roblox-2021-marzo.pdfIn PDF document text
    +17 more URL(s)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00006eef.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6EEF 27652 bytes
SHA-256: 26017c45635307f48a30a39763fa6d3945473968475da657236ee799b89d504d
font_01_sfnt_off0000adf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADF6 18720 bytes
SHA-256: 6158cb7aa146c912862954ce46a0b8794d2a84b0e46ca266d49ee9e56510f83d

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