Malicious PDF — malware analysis report

Static analysis result for SHA-256 663377ec8dbe12ae…

MALICIOUS

PDF

372.8 KB Created: 2015-08-19 14:13:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 193568a8634adb8854f05cd6a37af0fb SHA-1: 0532ac154d580fde1df95830964236f62f0af9e2 SHA-256: 663377ec8dbe12ae5469bc2dbb96e7c85f472f0811d28d52a7cde42cb6bf6757
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 PDF structure and the presence of a malicious URL strongly suggest an intent to deliver a secondary payload or phish for credentials. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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%B3%D0%B4%D0%B5+%D0%BC%D0%BE%D0%B6%D0%BD%D0%BE+%D0%BF%D0%BE%D1%81%D0%BC%D0%BE%D1%82%D1%80%D0%B5%D1%82%D1%8C+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B+%D0%B5%D0%B3%D1%8D+2015+%D0%BF%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC%D1%83+%D1%8F%D0%B7%D1%8B%D0%BA%D1%83&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626489_profotbor_v_voennoe_uchilische_testuy_onlayn.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496732_svatovstvo_so_storonuy_nevestuy_scenariy_v_stihah.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626660_canon_mf3200_series_drayver_windows_7_64_bit_skachat_besplatno.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058517.bin
1aabf23c61c3ece307b2b89ccaf4de0f2ecea3924720444ea108b620d5d12423		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58517 8896 bytes
font_01_sfnt_off00059f2f.bin
9bca35272bb42d85a2f2a9d800050a628897c2ed9e144abd76f369142a1636b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59F2F 16896 bytes

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