Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eef26c6430860f1…

MALICIOUS

PDF

356.2 KB Created: 2015-08-29 01:37:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 8e3e4ea75805bacd0ae91e41ae4f0afa SHA-1: 02aa34cac9829350f08a993c0ffdddc378f10122 SHA-256: 5eef26c6430860f13ab1a7e798ce1f26c98ddd736daaa2d177b51c9275e6309c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is identified as a malicious redirector. While no scripts were explicitly extracted, the nature of the PDF and the malicious link suggest an attempt to lure the user to a harmful site, likely for phishing or malware delivery.

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%B3%D0%B5%D1%80%D0%B0%D0%BA%D0%BB+2015+%D1%82%D1%80%D0%B5%D0%B9%D0%BB%D0%B5%D1%80+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818301_skachat__fonarik__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818061_helvetica__regular_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4818/4818379_skachat__chistilku__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054ca0.bin
d995ec42cff5a693cc760cab3aea7ebfbe601c9a4e74c1248538a89b2725a220		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54CA0 7848 bytes
font_01_sfnt_off00056365.bin
bef5a7b223c23d3f6f1b97d05d61173c2d75d8555fa07dd1c6c42356c0bc4c47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56365 15124 bytes

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