Malicious PDF — malware analysis report

Static analysis result for SHA-256 07ec6cb90e67a283…

MALICIOUS

PDF

46.1 KB Created: 2021-06-08 10:46:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 210c8245f7cd7ad5a85eef232e727cdd SHA-1: be16957b6b4403a0f8451ab782d28f3ec2abf054 SHA-256: 07ec6cb90e67a28306d0389f031bbd2109c73b530aec234c31d4a3a10c14684b
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 0.9864

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://netcdn.tw/app/431946152/how-to-get-1-millon-robux-free-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-link-download-apk_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/robux-website_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-roblox-characters_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-and-coins-generator_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/gain-robux_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
stream_004_off00004d4c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D4C 29256 bytes
SHA-256: 9c05c3af1a4fe8fc53fd034fc198edd8a524a9f0da56c5ba6c7cdd540dfcbf90
font_01_sfnt_off0000907f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x907F 18776 bytes
SHA-256: b2f9def511295a9c4f42b010b62991cc6c45513c1a41fc8351083c61732c936e

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