Malicious PDF — malware analysis report

Static analysis result for SHA-256 79c6e79bd47f5858…

MALICIOUS

PDF

368.7 KB Created: 2015-08-28 11:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: d26a1bf6cb7b762bda3258caf4f3c6b7 SHA-1: 3fdc4974fabfe1caac594178885cdf5316d6471e SHA-256: 79c6e79bd47f5858e86c45c141a1bc0a8e585a359c14443998e0743b8f319179
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign, aiming to lure users to a harmful website. No scripts were extracted, but the presence of a malicious URL is a high-confidence indicator of malicious intent.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%B1%D0%BE%D1%80%D0%BD%D0%B8%D0%BA+%D1%82%D1%83%D1%80%D0%B5%D1%86%D0%BA%D0%B8%D1%85+%D0%BF%D0%B5%D1%81%D0%B5%D0%BD&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802454_fifa__07__ukrainskaya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802486_klyuch__win7__professionalnaya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802459_skachat__drayver__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057e0a.bin
72bce7f643c33db8fcdddaa79d96350f3abc1fc8746ff85605815dadfeff0368		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57E0A 8452 bytes
font_01_sfnt_off0005963d.bin
73f9a001a9817f562a4f38c96141cfceb53ff1fb5476da40f47811a767520bb2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5963D 14796 bytes

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