Malicious PDF — malware analysis report

Static analysis result for SHA-256 050cbc4f9a934249…

MALICIOUS

PDF

370.9 KB Created: 2015-08-26 20:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 6732809b803cac9b8f28a883911d6f8e SHA-1: 2213558b9ec6a739a4a2e7f9d263587a7a49bc4d SHA-256: 050cbc4f9a934249c298400d8d192a1d9e2b14f26e08747fe4db23d0af2dbf00
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. Although no scripts were explicitly extracted, the presence of a malicious URL suggests an attempt to lure the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9+%D1%87%D0%B5%D1%81%D1%82%D0%B2%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+%D0%BF%D0%BE%D1%87%D1%82%D0%BD%D0%BE%D0%B3%D0%BE+%D0%B3%D1%80%D0%B0%D0%B6%D0%B4%D0%B0%D0%BD%D0%B8%D0%BD%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762949_klyuch__k__igre_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762776_kursuy__povuysheniya__kvalifikacii_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762948_egye__po__literature_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058508.bin
fcf04a636dab4dac390ceb072c36957696e221ca8e00ce694999e8866f0d7c23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58508 8732 bytes
font_01_sfnt_off00059dd9.bin
87668626502e127cb8984828bc62e7e79ec346f2f98019559e6aaf61891f5838		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59DD9 14536 bytes

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