Malicious PDF — malware analysis report

Static analysis result for SHA-256 363026667e34cb51…

MALICIOUS

PDF

353.4 KB Created: 2015-08-29 12:06:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-07-07
MD5: b4d70709321038b90dd783ff6416aea2 SHA-1: 587eb43881c0b8301b77e48268339255ddc82ea8 SHA-256: 363026667e34cb51c231c7f6eb7131554f441c16fe119070e515a7209e5ec42c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that redirects to a known malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also flagged the PDF with high confidence. While no scripts were explicitly extracted, the nature of the redirector suggests it is intended to lead the user to a malicious site, likely for phishing or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%B0%D0%BA+%D1%80%D1%83%D1%81%D1%81%D0%B8%D1%84%D0%B8%D1%86%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D1%82%D1%8C+android&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830370_nalogoplatelschik__yul__poslednyaya_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830235_pourochnuye__razrabotki__po_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4831/4831105_skachat__mashinuy_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053f41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53F41 9240 bytes
SHA-256: 1d90599507ff7aa140c14ce8a0425bf6288337f7333df3f6253a56ea1bfaaeff
font_01_sfnt_off00055928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55928 14260 bytes
SHA-256: d014e827ee04afa8e2cc616745cb538c7b9c4f21c062f9a561640ab8b0b66573

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