Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b2802f2ec08484b…

MALICIOUS

PDF

368.9 KB Created: 2015-08-21 09:28:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: def5a8bd079bf28b21e21eb2b7097d84 SHA-1: cf183fb27bc34eb0851678a607a82a61b4a93ca9 SHA-256: 6b2802f2ec08484bbdeca5c9c96b96bb212f798a85b84f8ba778218c9614b5ed
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 PDF structure and the malicious URL suggest a typical phishing or malware delivery vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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%94%D0%B5%D0%B2%D1%83%D1%88%D0%BA%D0%B8+%D0%B8+%D1%81%D0%BE%D0%B1%D0%B0%D0%BA%D0%B8+%D0%BF%D0%BE%D1%80%D0%BD%D0%BE+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654763_dumper_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654708_skachat_albom_balagan_limited_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654803_devushka_davit_krolika.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000587fd.bin
e1c850d74ab45660b0e4cee28cf1212557f2ab7f78bd2fe433edc5937d98e14f
pdf-font-stream PDF embedded font (sfnt) at offset 0x587FD 8040 bytes
font_01_sfnt_off00059ec8.bin
93a0f2526a070d868d5281bb70f3797783b316246e4502605cc34bac02f1c625
pdf-font-stream PDF embedded font (sfnt) at offset 0x59EC8 11760 bytes