Malicious PDF — malware analysis report

Static analysis result for SHA-256 e99e68e103871690…

MALICIOUS

PDF

33.5 KB Created: 2021-06-29 00:54:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3a20e7fbab1d20ee38504ec69629dc20 SHA-1: 105c348d063d77ed63d733b4a4e645a560601eb0 SHA-256: e99e68e103871690ebb3b6833a66b73922a355398e679bfd9216d21daa5ff1f5
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/free-robux-code-gen-game-hack PDF link annotation
    • http://lllaw.eu/images/coin-hackhub-coin-master_GM406889139.pdfIn PDF document text
    • http://lllaw.eu/images/assassin-roblox-free-tokens_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/how-to-speed-hack-on-roblox-sword-fighting-tournament-39_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/programas-para-hackear-roblox_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/criminal-vs-swat-money-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/roblox-free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/roblox-catalog-free-animations_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/hacks-for-roblox-how-to-fix-them_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/cruise-ship-tycoon-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/get-free-catalog-items-roblox_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/roblox-lego-hacking_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
    • http://lllaw.eu/images/how-to-get-the-free-dragon-wings-on-roblox_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/free-robux-form-hectic-plays_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/script-for-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/schto-roblox-free-shop-t-schirts_GM431946152.pdfIn PDF document text
    • http://lllaw.eu/images/how-to-get-free-robux-on-phone-2021_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_off00002db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DB1 21988 bytes
SHA-256: 747f553b530796f59521021944a9b7d4adf4b3b487c7dd611b58aafa040c79cf
font_01_sfnt_off00005e6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6C 18888 bytes
SHA-256: e123987aad293e8444ce0a61f7e3f87325c6f26bafd1462a2e53f1a082829468

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