Malicious PDF — malware analysis report

Static analysis result for SHA-256 473bbdd58e2a5e59…

MALICIOUS

PDF

41.1 KB Created: 2021-05-19 01:30:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bd7e91e57159dffacdc4970f78d3c530 SHA-1: 08bb1a400fa9bf73abeef2c537efbd07dd343a07 SHA-256: 473bbdd58e2a5e5994b67e37bf7c4c1a51e5961664c51f9f774e5aaed0886dfd
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/835599320/tiktok-free-pizza-game-hack PDF link annotation
    • http://digilib.iailm.ac.id//repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/minecraft-free-version-pc_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-pet-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/make-robux_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-800-robux-for-free_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_off00004710.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4710 24568 bytes
SHA-256: d19ebb756f0db140c708e7e31c14877e0d987ed8c62d2297bef3f850edc8231e
font_01_sfnt_off00007f75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F75 17920 bytes
SHA-256: 57ccf1affda27e2531d55e8ada45d50eb29806d3ed1140d2213886862be0b82e

Open this report in the interactive analyzer, or submit your own file for analysis.