Malicious PDF — malware analysis report

Static analysis result for SHA-256 199b041bcd7891e5…

MALICIOUS

PDF

46.1 KB Created: 2021-05-14 10:02:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d6fbacb136d98a6e39f812c10f811c33 SHA-1: 55cbcb0a19f8ebe8564bfb34db2c241626ad55a9 SHA-256: 199b041bcd7891e56a00589579ef02c1155f107ed12d9c9c8b93276cd81b54ac
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an external URI pointing to a URL associated with game hacks, and the ML classifier strongly flagged it as malicious. The presence of PRC/3D content and a visual download button lure further suggest a malicious intent to trick users into downloading unwanted or harmful files. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a likely attempt to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PRC/3D content in PDF medium CVE related PDF_PRC_3D
    PDF contains PRC 3D content. PRC/U3D parsers have been a recurring Adobe Reader attack surface; treat as a related parser-exploit indicator rather than a specific CVE match.
  • 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/479516143/free-minecraft-skins-game-hack
    • http://pourvosvacances.com/images/free-coins-and-spins-coin-master-2021_GM406889139.pdf
    • http://pourvosvacances.com/images/roblox-character-free_GM431946152.pdf
    • http://pourvosvacances.com/images/free-spin-links-coin-master-october-30-2021_GM406889139.pdf
    • http://pourvosvacances.com/images/how-to-hack-roblox-accounts_GM431946152.pdf
    • http://pourvosvacances.com/images/minecraft-hacks-xbox_GM479516143.pdf
    • http://pourvosvacances.com/images/coin-master-twitter-free-spins_GM406889139.pdf
    • http://pourvosvacances.com/images/minecraft-java-edition-free_GM479516143.pdf
    • http://pourvosvacances.com/images/how-to-get-robux-easy_GM431946152.pdf
    • http://pourvosvacances.com/images/coin-master-free-coins-and-spins-daily_GM406889139.pdf
    • http://pourvosvacances.com/images/coin-master-game_GM406889139.pdf
    • http://pourvosvacances.com/images/free-ways-to-get-robux_GM431946152.pdf
    • http://pourvosvacances.com/images/free-spins-for-coin-master-2021_GM406889139.pdf
    • http://pourvosvacances.com/images/free-robux-without-downloading-anything_GM431946152.pdf
    • http://pourvosvacances.com/images/coin-master-free-spins-2021-apk_GM406889139.pdf
    • http://pourvosvacances.com/images/www-bandicam-com-free-robux_GM431946152.pdf
    • http://pourvosvacances.com/images/coin-master-daily-free-spins-blog_GM406889139.pdf
    • http://pourvosvacances.com/images/how-much-robux-can-you-get-with-1-million-dollars_GM431946152.pdf
    • http://pourvosvacances.com/images/get-free-robux-without-doing-anything_GM431946152.pdf
    • http://pourvosvacances.com/images/best-site-for-free-coin-master-free-spin-link_GM406889139.pdf
    • http://pourvosvacances.com/images/xray-mod-minecraft-114_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004af4.bin
403832fc685b7293ddcad3c7e636d5a6ca17a604667ba997ae4e747bd1f2b2a8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AF4 35536 bytes
font_01_sfnt_off0000940e.bin
14879269a8559ae987a62032ee6d1223d63a0cf7b4214af4691cfda5a28d5ffa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x940E 17740 bytes

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