Malicious PDF — malware analysis report

Static analysis result for SHA-256 6875420da9323ab6…

MALICIOUS

PDF

44.7 KB Created: 2021-04-08 12:18:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a903f763adaab5b4d68f00f6b596327b SHA-1: 057be73011ae2050056a239977ba1079c6dff57b SHA-256: 6875420da9323ab68d536a9804b3c8a18b54795f07ebd8c2a91870f6d061f268
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 0.9982

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 https://gaminggenerator.org/app/431946152/roblox-infinite-ammo-hack-2021-game-hack PDF link annotation
    • http://unc-europe.com/images/hexaria-roblox-hack.pdfIn PDF document text
    • http://onlinemusicsolutions.com.au/images/are-games-on-roblox-free.pdfIn PDF document text
    • https://www.fhccu.com/images/free-robux-2021-19-pastebin.pdfIn PDF document text
    • http://sportagon.be/images/how-to-report-a-hacker-in-roblox.pdfIn PDF document text
    • http://taskcyg.nl/images/free-obc-codes-roblox.pdfIn PDF document text
    • http://elektrofahrspass.de/images/rockefeller-street-roblox-game-hack.pdfIn PDF document text
    • http://www.viniperfetti.com/images/get-free-catalog-items-roblox.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/heroes-online-free-roblox.pdfIn PDF document text
    • https://pompesfunebresleveque.fr/images/roblox-hack-tool-generator.pdfIn PDF document text
    • http://thomas-hartl.at/images/free-robux-pewdiepie-ultimate-gamer-365.pdfIn PDF document text
    • http://geemarco.com/images/hex-number-gives-free-robux-generator.pdfIn PDF document text
    • http://tegeler-segler.de/images/does-roblox-ever-give-out-free-robux.pdfIn PDF document text
    • http://genialica.com/images/free-face-roblox-2021.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-robux-pin-codes-pastebin.pdfIn PDF document text
    • http://yioipzafeiri.gr/images/how-to-use-cheat-engine-with-roblox-games.pdfIn PDF document text
    • http://instrumenttut.by/images/roblox-wood-tycoon-2-cheats.pdfIn PDF document text
    • http://fa-deco.com/images/cheat-engine-roblox-robux-hack-2021.pdfIn PDF document text
    • http://apd-ukraine.de/images/codde-for-free-roblox-hats.pdfIn PDF document text
    • http://kingmusic.pl/images/how-to-hack-in-roblox-on.pdfIn PDF document text
    • http://agroturismoarkaia.com/images/hack-roblox-pc.pdfIn PDF document text
    • http://thomas-hartl.at/images/free-robux-pewdiepie-ultimate-gamer-In PDF document text
    • http://tegeler-segler.de/images/does-roblox-ever-give-out-free-In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00004922.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4922 30128 bytes
SHA-256: b66abfd1f3c165d056c8dbda0c22b62afa746ba8ee3970f974f650a8254ba318
font_01_sfnt_off00008bfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BFB 18604 bytes
SHA-256: b421127a9a2baa3d2204d97947b520b70944a052da54684d02e8f8f7ee124310