Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d3d0abf1a7a5dcc…

MALICIOUS

PDF

35.7 KB Created: 2021-06-28 21:30:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f03c5102e32d81bba48c9fe89c79e859 SHA-1: 613825c6fe91a70f004d70dddfe6ec2bc8b237fc SHA-256: 4d3d0abf1a7a5dcc9c657591725f73e48d93a787a191cce0fa701a184b038836
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/this-roblox-shirt-gives-free-domimnus-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/dailyrobux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/daily-spin_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-doge-hat-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-magical-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/como-hackear-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coins-and-spins-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-play-online-free_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-robux-generator-http-freerobuxgenerator-xyz_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_off00003459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3459 22032 bytes
SHA-256: c2c08d02d368f487af061acedc1619712b666b621c2db96800229485818efd27
font_01_sfnt_off000064ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64EF 19720 bytes
SHA-256: 432e971e33f5bb8ea302e9aabbb79757045a423876dc3a5e18c60c2d32767370