Malicious PDF — malware analysis report

Static analysis result for SHA-256 bca424f92f4eec85…

MALICIOUS

PDF

386.3 KB Created: 2015-08-28 18:08:22 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9ce8950b2104de7b667ae2ddac30687a SHA-1: a63b68f893a5469967d449b651baa2d43c11df21 SHA-256: bca424f92f4eec85895d0c8998d55c81b9f43857a01fa5b86bf509e75462a366
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is likely used to deliver a payload. The document body suggests a lure for downloading a game, aligning with common social engineering tactics. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9910

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8%D0%B3%D1%80%D1%83+the+amazing+spider-man+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+pc&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809627_klyuch__k__igre_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809160_vuyshivka__krestom__shemuy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809126_stm32vldiscovery_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005bd9d.bin
4b99d12bcd98100e8af61035145b1c7797bb6080399ddfb0e92b3ab583806209		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD9D 9592 bytes
font_01_sfnt_off0005d7b8.bin
c1a0dd3863031cbcadcc19ca72cb0a4f4025bea2b3c4fd308d62fa2f026587a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7B8 16788 bytes

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