Malicious PDF — malware analysis report

Static analysis result for SHA-256 47576bd0df4cd58e…

MALICIOUS

PDF

345.8 KB Created: 2015-08-29 11:43:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 3faaa700264ad74e2a6d90d491597589 SHA-1: 7eaae7fe798de9d2b284f21e2f52d23e3dcd0a46 SHA-256: 47576bd0df4cd58e9e573b5eab980ef64f747f23fe0e2dec73169d988a73e7bb
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for containing a malicious redirector link. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the presence of a malicious URL suggests the document is intended to lure the user to a compromised site, likely for further exploitation or phishing. The document body was unreadable, preventing a more specific analysis of its lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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=%D0%B0%D0%B2%D1%82%D0%BE%D0%B1%D1%83%D1%81+%D0%BA%D0%B0%D0%B7%D0%B0%D0%BD%D1%8C+%D0%BC%D0%BE%D1%81%D0%BA%D0%B2%D0%B0+%D1%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830161_hd44780__opisanie__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830566_kalkulyator__na__android_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830350_whatsapp__registraciya__na_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00051fd7.bin
5cadad7cab9687bd547c480e49a5af65242ee362b7b9a0ab82cf8fff870722b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51FD7 7916 bytes
font_01_sfnt_off00053721.bin
772bd6bec18f2c8dfb14a485a5564b535b8ad63f612771203b4b9e3c0f19da1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53721 15748 bytes

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