Malicious PDF — malware analysis report

Static analysis result for SHA-256 986de5b2cc0cd353…

MALICIOUS

PDF

34.9 KB Created: 2021-07-21 17:03:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 80ef41504ad0752b17c47794bb141aa0 SHA-1: d138028d6d62d3e19e83f294728861e4c35319d8 SHA-256: 986de5b2cc0cd353e28db3c4ca7e06d1adb8b19584a9c7896d3625b97f70ca91
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains a prominent call-to-action button and multiple embedded URLs, suggesting a lure to download potentially malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The primary lure appears to be related to game hacks or cheats, specifically for Minecraft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

Heuristics 4

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.tw/app/479516143/how-to-get-hacks-on-minecraft-game-hack
    • http://kfz-service-etp.de/images/free-robux-generator-2021_GM431946152.pdf
    • http://kfz-service-etp.de/images/free-online-minecraft-server_GM479516143.pdf
    • http://kfz-service-etp.de/images/free-robux-codes-generator_GM431946152.pdf
    • http://kfz-service-etp.de/images/how-to-get-free-robux-hack_GM431946152.pdf
    • http://kfz-service-etp.de/images/how-to-get-free-skins-in-minecraft_GM479516143.pdf
    • http://kfz-service-etp.de/images/how-do-i-get-free-robux_GM431946152.pdf
    • http://kfz-service-etp.de/images/coin-master-free-blogspot_GM406889139.pdf
    • http://kfz-service-etp.de/images/promo-codes-for-free-robux_GM431946152.pdf
    • http://kfz-service-etp.de/images/free-minecraft-maps_GM479516143.pdf
    • http://kfz-service-etp.de/images/buy-robux-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000031bd.bin
095ac9a0863bd8b7cbb69a70e314831e2ad4edab71707d89e54eedf0a1dafaf3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31BD 23704 bytes
font_01_sfnt_off00006760.bin
9f1e79a3b07781afcdd90921eb79530491bd6e36a063b246dd64f6dc9a4bd67a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6760 18044 bytes

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