Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd2fbd349ff66807…

MALICIOUS

PDF

371.3 KB Created: 2015-08-28 11:56:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 3466ed1190233e5437fda6cc42394544 SHA-1: 552ed9ded765f5839f5c1cb1b52192870abd7d52 SHA-256: bd2fbd349ff66807651274c83aef2295cb91a3af7da09f8c4cec50b97845ab2d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link, indicating an attempt to lead the user to a harmful website. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the presence of the malicious URL strongly suggests a phishing or malware delivery attempt.

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=mariah+carey+without+you+%D0%BD%D0%BE%D1%82%D1%8B&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802630_mapsource__russkaya__versiya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802497_skachat__chit__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802742_skachat__kartu__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057f42.bin
4ac551e49b176581f3b654b999a61a7bbebf92e258d14ca040be8945c039c151		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57F42 10100 bytes
font_01_sfnt_off00059aad.bin
3a2764d9b3cba52236b60f167c30378de93a6f8475a65fb7c1a801cb3f942cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59AAD 17372 bytes

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