Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5325b9b06171301…

MALICIOUS

PDF

296.6 KB Created: 2015-08-29 12:21:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-07-07
MD5: 2e5c84b10c11ba0e992292f6f81299ba SHA-1: e8669bc6bc5b0549225ae36b0d272a2c8e384382 SHA-256: f5325b9b0617130137c007f7fe0b637f718f10b3ccafc4b0d4ee7360951b2808
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to known malicious infrastructure, indicating an attempt to redirect the user to a harmful site. The ML classifier also flagged the document as malicious. While no scripts were extracted, the presence of a malicious URL strongly suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6955

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=gta+4+%D0%BB%D0%B0%D0%B3%D0%B0%D0%B5%D1%82&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830261_azbuka__joomla__skachat_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830536_trudovoy__dogovor__obrazec_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830149_kartinki__s__imenami_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00045c68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45C68 8412 bytes
SHA-256: 4744affaecb9ac7b513dee1ef35fe497031dabfe6b540fae85a1dda7faaf2386
font_01_sfnt_off0004739f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4739F 15192 bytes
SHA-256: bbe5813b8e065c1fb3f51f96e3db945bb86ed63fe36508ce5d5934c99fdbb24a

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