Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dd07193ebeb133f…

MALICIOUS

PDF

361.3 KB Created: 2015-08-24 05:59:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2ef1fed5c1cbd51a584be94a5fe568ed SHA-1: f756e5d4eb5cd761b3025b220d4acff70f2df176 SHA-256: 5dd07193ebeb133ff4775537682097ca2f5eb510407b68612a8424134bb61582
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. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely serving as a lure for further compromise.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BA%D0%BD%D0%B8%D0%B3%D0%B8+%D0%B8%D0%BD%D0%BD%D1%8B+%D0%B0%D1%81%D1%82%D0%B0%D1%85%D0%BE%D0%B2%D0%BE%D0%B9&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4702/4702362_razvivayuschie__multiki__pro_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694230_skachat__windows__7_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4699/4699781_tipovuye__testovuye__zadaniya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000559cd.bin
211bd5ea19dd29e11a38ef4325414b233540528f6b58126bc94df1fc7a6ee937		 pdf-font-stream PDF embedded font (sfnt) at offset 0x559CD 9056 bytes
font_01_sfnt_off00057399.bin
6bec2abbd621f76279ddf04045f47a1bd948c8523e11a6180eb807e2f493f444		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57399 16356 bytes

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