Malicious PDF — malware analysis report

Static analysis result for SHA-256 08a00db82580b7bc…

MALICIOUS

PDF

365.6 KB Created: 2015-08-29 01:18:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 8ef8fe80f689ba5c209d53a707c3f501 SHA-1: 884f83d9aea8e487a903cf9f84770cc91b468ba7 SHA-256: 08a00db82580b7bc1457d23bca695a0e24155cb24a1776413b5bb074f3a35f49
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link to a known malicious redirector infrastructure at botcraftman.ru. This indicates the file is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of a malicious URL is sufficient evidence 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%B1%D0%B8%D1%82%D0%B2%D0%B0+%D1%8D%D0%BA%D1%81%D1%82%D1%80%D0%B0%D1%81%D0%B5%D0%BD%D1%81%D0%BE%D0%B2+13+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+11+%D1%81%D0%B5%D1%80%D0%B8%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817994_reshebnik__k__rabochey_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817648_genshtab__kartuy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817965_registraciya__aliyekspress__na_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057534.bin
992da26b11849d551aa9574ab586ea834ee044f693da58c30c6417a23d4db099		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57534 7368 bytes
font_01_sfnt_off00058ab7.bin
3024218fa154742413bd3899fb1b986837a4b60f4f1a8bd77b1ed8de7ca882bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58AB7 13852 bytes

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