Malicious PDF — malware analysis report

Static analysis result for SHA-256 049be17f519c5a21…

MALICIOUS

PDF

352.0 KB Created: 2015-08-24 21:11:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1e1434e27bb1a05c25e5d56aca82c3d7 SHA-1: f6a7dae76f4842822c8e4aedbae1b3731df3a2e9 SHA-256: 049be17f519c5a2123a58b2ecd2ddf6cc82412cb6456c494a649e1fdbae70990
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 known malicious redirector infrastructure. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%BD%D0%B5+%D0%B2%D0%BA%D0%BB%D1%8E%D1%87%D0%B0%D0%B5%D1%82%D1%81%D1%8F+%D0%BF%D0%BB%D0%B5%D0%B9+%D0%BC%D0%B0%D1%80%D0%BA%D0%B5%D1%82+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4700/4700464_karaoke__skachat__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4702/4702298_mescheryakova__angliyskiy__dlya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693213_suynuy__anarhii__2_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000536fb.bin
3fc56a6ae04b85f4e7578989ff7763bc21873b67408b9a42b0030bbefa18d889		 pdf-font-stream PDF embedded font (sfnt) at offset 0x536FB 9480 bytes
font_01_sfnt_off0005515e.bin
a5eb4f8a15a544bb662d793cd5f7a71f2e6b2134a6a4c720b31eae0af0099bd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5515E 15076 bytes

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