Malicious PDF — malware analysis report

Static analysis result for SHA-256 75f41a19039fae7b…

MALICIOUS

PDF

358.5 KB Created: 2015-08-28 11:38:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c0ef5c5cf84c65130dfd8185a35381cd SHA-1: 89cf4384889e772c6dcfac4bcab1dd1c53511775 SHA-256: 75f41a19039fae7b54c20186b6c74b6ad91023a1377b74ee303e4913f1556a32
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of a malicious URL within the document structure is a strong indicator of malicious intent, likely for phishing or malware distribution.

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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%B4%D0%B8%D0%B7%D0%B0%D0%B9%D0%BD%D0%B5%D1%80%D0%B0+%D0%B8%D0%BD%D1%82%D0%B5%D1%80%D1%8C%D0%B5%D1%80%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802395_dogovor__nayma__zhilogo_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802491_programma__dlya__obmena_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802486_klyuch__win7__professionalnaya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055a4c.bin
ce828d148f68281cf5031bd282b655d9be719b83f10e844a8c86fb20a8802724		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55A4C 8136 bytes
font_01_sfnt_off000571e4.bin
b4436af25b146528fdc257485c9821b3ff4fb5c8beab7e95d1a269f9e7273e6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x571E4 12660 bytes

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