Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dd3ae24c3d20d58…

MALICIOUS

PDF

42.7 KB Created: 2021-05-10 20:47:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 3f7f6f6c7bd3a2bcbd767c50b65bc3e1 SHA-1: 6bb6c2b5a81e3fc4efdfe28a0f459609395cf8ae SHA-256: 4dd3ae24c3d20d58c9054f9b9b2032137a1433bf7ad7ccfd8bceb580e1eb79f3
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 0.9971

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.xyz/app/406889139/how-to-hack-coin-master-using-es-file-game-hack PDF link annotation
    • http://www.teapotjewelry.com/images/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-bonus_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-free-spin-link-list_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-spin-link-today-free_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/tiradas-coin-master_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-hack-online-android_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/roblox-hack-download_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_003_off000049b4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49B4 25724 bytes
SHA-256: ae7678d6205a2f9d7f702a808c25a4ef05778a292ffa4487981ffacc9e106722
font_01_sfnt_off000083b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83B9 18592 bytes
SHA-256: 7b6829f0c912f355393962c39643cd2cadf5d604c17bb92301d7763a729473f1

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