Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a681bb2560cbe2c…

MALICIOUS

PDF

374.4 KB Created: 2015-08-24 03:50:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2026-06-05
MD5: 073c2ac54c7640af3a995271384f62fa SHA-1: 38c0ffa900642f928f7c302ee4552a4aaea5dc50 SHA-256: 2a681bb2560cbe2c6aec92247570514c94fd90a62e2e4fc34345df982faabf18
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that point to a known malicious redirector, botcraftman.ru. This redirector is likely used to serve malicious content or phishing pages, disguised as a free download lure. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 3

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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%BB%D0%B5%D0%B3%D0%BE+%D0%B7%D0%B2%D0%B5%D0%B7%D0%B4%D0%BD%D1%8B%D0%B5+%D0%B2%D0%BE%D0%B9%D0%BD%D1%8B+2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693805_girlfriends__4ever_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4695/4695273_kak__sdelat__spays_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693188_skachat__besplatno__vse_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59400 8320 bytes
SHA-256: 9890c56590df9d25a94b9b7ddad6376833f25ac38624fe06d9552ca71c5aeed3
font_01_sfnt_off0005abf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ABF8 14660 bytes
SHA-256: 3ca1644684e3eebc115a076e2b9da8c01c635e235180dcd979c9410221fb74a5

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