Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf3b89bc368c6e7e…

MALICIOUS

PDF

359.2 KB Created: 2015-08-25 09:52:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1298d7db71ada59101d0efa302be6b9f SHA-1: 6bd0590ea6aec4d49319f661a08d9979eb39d809 SHA-256: cf3b89bc368c6e7e92f9743cac1659c00c2c3ddc824598afb17e5701861ab502
90 Risk Score

Malware Insights

MITRE ATT&CK
T1200 Hardware Add-in T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure at botcraftman.ru. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific content or intent beyond the malicious link.

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%B3%D0%B4%D0%B5+%D0%BC%D0%BE%D0%B6%D0%BD%D0%BE+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B3%D0%BE%D1%82%D0%BE%D0%B2%D1%8B%D0%B5+%D0%BA%D0%BE%D0%BD%D1%84%D0%B8%D0%B3%D0%B8+conky&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725791_koduy__razblokirovki__bannera_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4726/4726726_istrebivshiy__magiyu_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4725/4725224_beverli__hilz__90210_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055751.bin
a01009c9de37482cbfd6fcd5619d8f26da7aacae9c3d401395f3efd34be32f7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55751 8736 bytes
font_01_sfnt_off00057008.bin
175e4f9bccc85b652c2850fe1c9bac56b889d9b4aae30ecfd49bccc48c2aa8fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57008 14716 bytes

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