Malicious PDF — malware analysis report

Static analysis result for SHA-256 11aa9743faa0a719…

MALICIOUS

PDF

40.2 KB Created: 2021-04-03 13:31:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-14
MD5: d114fa4bcd1e3d51dd72719b51abda9b SHA-1: 48261f63f4a7e3d9995dc19e5e8e1001ff689bba SHA-256: 11aa9743faa0a7198f4281d5902622ac2d6e583c26a89d04f2c962d3829b48a2
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to websites that promise game hacks and free in-game currency, such as 'Robux'. The heuristic 'PDF_GAME_HACK_SEO_LINK_FARM' indicates a large number of such links, suggesting a scam or phishing operation. While no scripts were explicitly extracted, the presence of external URIs and the nature of the content strongly suggest a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9500

Heuristics 5

  • PDF carries distributed game-hack scam link farm critical PDF_GAME_HACK_SEO_LINK_FARM
    PDF contains a free-generator/game-hack lure together with many external PDF links spread across distinct hosts whose filenames advertise game hacks, cheats, jailbreaks, generators, or free currency. This is a high-confidence scam/SEO-poisoning carrier: the PDF exists to route users into malicious or unwanted download/redirect chains, not to present normal document content.
  • PDF carries game-hack generator link farm medium PDF_GAME_HACK_LINK_FARM
    PDF contains a gaminggenerator.org app lure together with multiple external PDF links whose filenames advertise game hacks, cheats, jailbreaks, or generators. This is a lure/delivery link farm rather than a PDF exploit: the risk is the linked redirection chain.
  • 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://gaminggenerator.org/app/431946152/cheat-codes-for-roblox-skywar PDF link annotation
    • https://ballaratcaravans.com.au/images/how-to-do-roblox-hacker.pdfIn PDF document text
    • https://corbo.ru/images/get-free-robux-no-survey-no-download.pdfIn PDF document text
    • http://cosver.eu/images/free-robux-and-tix-no-human-verification.pdfIn PDF document text
    • https://www.wildpark-johannismuehle.de/images/robux-hack-joining-groups.pdfIn PDF document text
    • http://www.eurosan1.ba/images/pastebin-roblox-cheats.pdfIn PDF document text
    • http://www.maakherumusic.net/images/roblox-free-stuff-obby.pdfIn PDF document text
    • http://www.pcclawyers.com.au/images/free-instant-no-lie-robux.pdfIn PDF document text
    • https://www.lomrad.go.th/images/roblox-boy-outfits-free.pdfIn PDF document text
    • http://www.drent.se/images/robux-javascript-hack.pdfIn PDF document text
    • https://www.u-pin-it.com/images/your-free-trial-roblox.pdfIn PDF document text
    • http://poltekkeskhjogja.ac.id/images/how-to-hack-roblox-account-2021-easy.pdfIn PDF document text
    • http://escolaarboc.cat/images/robux-hack-synapse.pdfIn PDF document text
    • https://consorziocsa-asicaivano.it/images/games-that-can-get-you-free-robux.pdfIn PDF document text
    • http://www.fanciullovito.it/images/roblox-check-cashed-v7-hacks.pdfIn PDF document text
    • http://www.web.stc-part.co.th/images/estan-hackeando-roblox-13-08-19.pdfIn PDF document text
    • https://www.romedia.gr/images/free-robux-no-websites.pdfIn PDF document text
    • http://gops.pruszczgdanski.pl/images/cheat-engine-roblox-2021-robux.pdfIn PDF document text
    • https://corbo.ru/images/ban-hack-roblox.pdfIn PDF document text
    • http://www.cosver.nl/images/generator-roblox-hack.pdfIn PDF document text
    • https://www.fhccu.com/images/www-get-free-robux-info.pdfIn PDF document text
    • http://www.eaapiaria.es/images/roblox-how-to-speed-hack-not-patched.pdfIn PDF document text
    • http://cosver.eu/images/how-to-get-free-robux-2021-no-verification.pdfIn PDF document text
    • http://behsanroshd.com/images/free-roblox-rust-games.pdfIn PDF document text
    • https://www.sitiwebjoomla.it/images/chemical-u-roblox-hacks.pdfIn PDF document text
    • https://ballaratcaravans.com.au/images/how-to-hack-games-on-roblox-rpg-rainbow-swords-rpg.pdfIn PDF document text
    • https://www.audev.com/images/free-robux-glitch-may-2021.pdfIn PDF document text
    • https://www.ncscolour.no/images/is-a-roblox-account-free.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/roblox-hack-999999-robux-ios.pdfIn PDF document text
    • https://amatq.ca/images/free-black-suit-roblox.pdfIn PDF document text
    • http://www.cbgp.upm.es/images/roblox-redeem-robux-code-free.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (stream_003_off00004484.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004484.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4484 23280 bytes
SHA-256: 887aa0d5cbe80318e4918770b09a556b40f1cb168f5f1829282e4a760fb2cdef
font_01_sfnt_off00007903.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7903 18560 bytes
SHA-256: 2ce49d8559b699ec901ec216c22dc1a0e7c92c587e0110c0fc146860e018ee98

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