Malicious PDF — malware analysis report

Static analysis result for SHA-256 843f943caffca664…

MALICIOUS

PDF

365.4 KB Created: 2015-08-28 11:44:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 27ab02fa1ad372a1b70d0b7b9fb50dda SHA-1: 9bfe3a57b056423e421b3ee70ca49f3c01a89dd5 SHA-256: 843f943caffca664970559aa03dc2cd710a16acfadc051c06d5b303666537679
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that points to a known malicious redirector. This suggests the document is designed to lure the user to a malicious website, likely for phishing or malware delivery. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%D0%BE%D0%B4%D0%B1%D0%BE%D1%80%D0%BA%D0%B0+%D0%B6%D0%B5%D0%BD%D1%81%D0%BA%D0%B8%D1%85+%D0%BE%D1%80%D0%B3%D0%B0%D0%B7%D0%BC%D0%BE%D0%B2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802418_ovir__holodnogorskaya__sumuy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802535_nahodilki_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802511_programma__skladskogo_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056db0.bin
492b8f30051273fb29999aa1174c07650352a85fffcf636da96db038ac6ea45e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56DB0 9372 bytes
font_01_sfnt_off000589a6.bin
32705ea86de0b943b4e63ee65fe42a2e958dedd5d16edcc9567d97b52c84e9bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x589A6 13872 bytes

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