Malicious PDF — malware analysis report

Static analysis result for SHA-256 160f7f241119441d…

MALICIOUS

PDF

359.9 KB Created: 2015-08-26 20:12:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 43fa30e066d72810f231cd693ce45b47 SHA-1: 1f8d66869e584e350636beffc29acb99fe272941 SHA-256: 160f7f241119441d52d795773a42b13472e56bbf9d119020a86644215237261c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a malicious redirector link pointing to botcraftman.ru. While no scripts were explicitly extracted, the ML classifier strongly indicates malicious intent. The embedded URL is the primary indicator of a phishing or redirection attempt, likely intended to lure the user to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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=Mockingbird+eminem+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4763/4763520_igra__gde__nado_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762826_dragonforce__diskografiya__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4763/4763023_drayver__na__printer_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000551e5.bin
e6fd53467e1fd36ba67ea0ac0c4b5c8298a937f1fc676f504560b050e9f11858		 pdf-font-stream PDF embedded font (sfnt) at offset 0x551E5 9464 bytes
font_01_sfnt_off00056c7a.bin
45383b4a96b8f426d92c602ef8000c6b4715a35e8f5ae5c1ee0321a276b75827		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56C7A 17316 bytes

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