Malicious PDF — malware analysis report

Static analysis result for SHA-256 be47297542d981a3…

MALICIOUS

PDF

355.1 KB Created: 2015-08-27 23:42:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 04b32caddae6a6dbe918bf2c571872bc SHA-1: a7807644550adba16eeb3098773762e4c0b06c72 SHA-256: be47297542d981a376d4aa73c64dbc85df481209da569a7afaac336a60a32645
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector. The embedded URL points to 'http://botcraftman.ru/', which is associated with malicious redirection. No scripts were extracted, but the presence of the malicious link is sufficient evidence of a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC+%D0%BF%D1%83%D1%82%D1%8C+%D1%81%D0%B0%D0%BC%D1%86%D0%B0&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787998_tom__i__dzherri_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787919_uchebnik__cifrovoy__fotografii_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787801_blank__doverennosti__na_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054785.bin
fd3f6c9347b53b65352b13d9f90a46f784ad524ab9b6b9ce40a387536b513606		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54785 7948 bytes
font_01_sfnt_off00055eb4.bin
9748b7c81a8ea056f8c3dd82a395891dfee56bd0ce08adad9de244024e9620f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55EB4 14600 bytes

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