Malicious PDF — malware analysis report

Static analysis result for SHA-256 13cc8c54804bfd15…

MALICIOUS

PDF

35.5 KB Created: 2021-06-26 14:58:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: bd37f40e5e34880ad5799395088b4b38 SHA-1: 5104d3653b7f288dcf11c487f601e3925be7c1c3 SHA-256: 13cc8c54804bfd150e1ec09176543fcbdb0e5e2f4eeaf658445e772be10bd741
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 0.9980

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://netcdn.co/app/431946152/how-to-get-free-faces-from-events-roblox-game-hack PDF link annotation
    • https://www.xenonsvjetla.com/files/coin-master-hack-no-verification-ios_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-watch-ads-for-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-spins-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/earn-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/minecraft-pe-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-place_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/cheat-roblox-tuto_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-roblox-card-codes-no-verification_GM431946152.pdfIn 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
font_00_sfnt_off0000336e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x336E 22292 bytes
SHA-256: 70f732dd250469f1c755b59a8247913bc5f9f95148f4007df7f270a449cdce34
font_01_sfnt_off000064e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E3 19292 bytes
SHA-256: 003a65605db83bf9b365a0b286d08c9bdaa878cefe85dc7159bd108220b4ebab

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