Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e32f352d0e5208a…

MALICIOUS

PDF

363.5 KB Created: 2015-08-25 15:03:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f9b320591582af876dd0a745a62e4fab SHA-1: 27a2bcb23b898d7c7b2d22cecf89427949754591 SHA-256: 5e32f352d0e5208a67216dfbfe25470319c7d80ee4197bb4221783e6c3737662
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful website. While no scripts were explicitly extracted, the PDF structure and the presence of a malicious URL strongly suggest it's used as a delivery mechanism for further malicious activity, likely phishing or malware download. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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%84%D0%B8%D1%84%D0%B0+%D0%BC%D0%B5%D0%BD%D0%B5%D0%B4%D0%B6%D0%B5%D1%80+2014+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B0%D1%8F+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8F&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731524_denis__maydanov__vse_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731204_igruy__maynkraft__risovat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731769_soderzhanie__i__remont_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000569e6.bin
16734bddabb72a8bed183547a0486fb52e568813dc02be759f6ca4acf92df08f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x569E6 8644 bytes
font_01_sfnt_off00058375.bin
3236501ee9b17bfa6ec34e06f166a7da88593d3b7ebe63c624220d765cafa08f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58375 13252 bytes

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