Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cbced6bc72649c8…

MALICIOUS

PDF

379.2 KB Created: 2015-08-26 10:01:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-02
MD5: 8513e329d735c8595ebabfb148495ed5 SHA-1: b01dfd8282668043788a1b806944052592261eeb SHA-256: 9cbced6bc72649c89e6684fd86cde73130f131f11f4b0d24a70606ecc20312c5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector infrastructure, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the PDF structure and the malicious URL suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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%BA%D0%BD%D0%B8%D0%B3%D0%B8+%D0%BF%D0%BE+%D0%B0%D0%B2%D1%82%D0%BE%D1%80%D0%B5%D0%BC%D0%BE%D0%BD%D1%82%D1%83&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752179_programma__provedeniya__pervichnogo_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752056_perevod__golosa__v_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752124_skachat__obhodnoy__list_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005ac1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC1C 7580 bytes
SHA-256: 2f0f03e479551d63c5005abc0ba913fb0e954ad636b15366ee4aef1216475cd9
font_01_sfnt_off0005c243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C243 13472 bytes
SHA-256: 72cf585cbfe72d5c250a78cc45159d8355207b35d6a001d6b4cf2aa61943e0a9

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