Malicious PDF — malware analysis report

Static analysis result for SHA-256 1825050fcd639d4b…

MALICIOUS

PDF

41.2 KB Created: 2021-05-12 14:02:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a5a01467c3ee021130f2f8c54ee0ca43 SHA-1: 79504aff1dfdc3d42114bf48de33d8583a9dfcb1 SHA-256: 1825050fcd639d4bc3986e17093b1d84110cf624376eda62ece0a45c44dfbb12
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/coin-master-spin-hack-pc-game-hack PDF link annotation
    • http://stitqi.ac.id/website/repository/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/aimbot-exe-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/get-free-spins-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/microsoft-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/hack-a-game_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/google-roblox-games_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/claim-gg-free-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_003_off0000482e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x482E 24448 bytes
SHA-256: d7423cd8ee0e6ab609ff544ad24a9391595b2ee8cc2994fff02f0cca5a90a0a9
font_01_sfnt_off00007f64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F64 18048 bytes
SHA-256: 56a65f50714ecbd9049d616bfb273726bba74de2c3cbe29be5745e4fcfc85992

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