Malicious PDF — malware analysis report

Static analysis result for SHA-256 80de6b53267db18a…

MALICIOUS

PDF

291.5 KB Created: 2015-08-26 13:21:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: eb90ccc6f460e6f1d6f56927656fc7a2 SHA-1: d1c5566f527435628c60812415ea4745a42bc060 SHA-256: 80de6b53267db18ac5f87400695a1bb61604e899faa8d10509fe9d0a17b022e3
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. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's flagging strongly suggest malicious intent. The document's structure and content, though heavily obfuscated, do not provide further specific indicators of a particular malware family.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7357

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%B8%D0%BC%D0%B5%D1%80%D1%8B+%D0%B4%D0%B8%D0%B0%D0%BB%D0%BE%D0%B3%D0%BE%D0%B2&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4754/4754382_programma__dlya__vuypryamleniya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4756/4756201_skachat__the__crew_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4755/4755263_skachat__drayver__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000447fc.bin
9d1e45715f62b8b440993c7c19a06d967a2107c02dd700d89a59631957d8421d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x447FC 8088 bytes
font_01_sfnt_off00045f6c.bin
011e6d76fa7b934e5e355285e44c7b9d505d585124713a858bd624644bc7cfa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45F6C 15620 bytes

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