Malicious PDF — malware analysis report

Static analysis result for SHA-256 e230e0b247e99415…

MALICIOUS

PDF

363.0 KB Created: 2015-08-25 14:36:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-23
MD5: 87626d930caeff2f7080694ca2b514f7 SHA-1: dc2af343f10d3928b6fd8fbee434f5ca9d3c0ec8 SHA-256: e230e0b247e99415ba2b615ee9589ccf135b6d7d36e8e85914fe68f5b1063e79
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious URL suggests an attempt to trick the user into navigating to a harmful resource.

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%82%D0%BE%D0%BF+%D0%B3%D0%B8%D1%80+%D0%B2+%D0%BA%D1%80%D1%8B%D0%BC%D1%83+%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731106_skachat__besplatno__muzuyku_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731079_batman__arkham__asylum_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731063_vid__ot__pervogo_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000565bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x565BD 7712 bytes
SHA-256: 89cecde07ef21e973478fef59217b74f5ce64b24454fe7cf3bd8b65bf317d216
font_01_sfnt_off00057c4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57C4A 15640 bytes
SHA-256: e78900a3c31db8a3dc9dfc3396e092ca2ae10115a0a1e2a4937bc166e541945c

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