Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a45ac13b7e3f90f…

MALICIOUS

PDF

358.2 KB Created: 2015-08-28 11:45:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9a60e2fce6735bc0949b99182b8e1efb SHA-1: bf487c93caff5dd2141a08a766b27c7dab84d49a SHA-256: 4a45ac13b7e3f90f0bd47162cd171535531420923f19352b7fd8f798b37bebca
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector infrastructure at botcraftman.ru. This indicates the document is designed to lure users to a malicious site, likely for phishing or malware delivery. No scripts were extracted, and the document body was unreadable, but the malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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%BA%D0%B8%D0%BE+magic+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802611_skachat__utinuye__istorii_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802606_hochu__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802608_instrukciya__po__tb_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055589.bin
2181de71df296d3cc94cbee0bccd73eb87f6997353343cac5098a67238bdba9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55589 8128 bytes
font_01_sfnt_off00056c18.bin
802b2105f9a06c4e47aecfba3806b578c58e73a22eed59bf5a739fd942880cd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56C18 14512 bytes

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