Malicious PDF — malware analysis report

Static analysis result for SHA-256 32254492f6ea0cde…

MALICIOUS

PDF

384.1 KB Created: 2015-08-29 11:26:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 01307480d697c3dade77ef3fef5d667a SHA-1: a40399bdfb99c15610457712ddc102715f95e9a7 SHA-256: 32254492f6ea0cdeda7839697706c1bd9549c0864f8837dc2d24c7e89b8c0384
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 site. While no scripts were explicitly extracted, the PDF structure and the malicious URL strongly suggest a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC+10000+%D0%BB%D0%B5%D1%82+%D0%B4%D0%BE+%D0%BD%D0%B0%D1%88%D0%B5%D0%B9+%D1%8D%D1%80%D1%8B&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830279_programma__reabilitacii__i_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829895_na__kakoy__nomer_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829952_rd__yeo__006997_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005bdbb.bin
9db5c58275ab6f8629df97d0a5aa2912d892309a81982680c84b9e8a91abd54b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDBB 8244 bytes
font_01_sfnt_off0005d56a.bin
c31b9e388f78f2081d490b01c59f6e94c5e378c7da563bef0a41ccad15eef302		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D56A 13428 bytes

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