Malicious PDF — malware analysis report

Static analysis result for SHA-256 313e77209c07507e…

MALICIOUS

PDF

364.5 KB Created: 2015-08-24 00:41:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c3c84e6c40462cbc1c51df594944e17a SHA-1: 1dc79c4f76ed4ae3673ff5e331f067652002c613 SHA-256: 313e77209c07507eff1ea1193aee449ca7d30f030bc40e0d9a60ead02166efe4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL points to botcraftman.ru, which is flagged as malicious. While no scripts were explicitly extracted, the nature of the PDF and the malicious URL suggest an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting.

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%87%D0%B8%D1%82%D1%8B+%D0%BD%D0%B0+%D1%80%D1%83%D0%BB%D0%B8%D0%BC%D0%BE%D0%BD%D1%8B+%D0%BD%D0%B0+%D0%BA%D0%BB%D1%8E%D1%87%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694373_vyazanaya__kofta__spicami_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693684_programma__arh2_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694438_detskie__scenki__pro_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000571b6.bin
9799a999dc78f898abbe4ade6f29e0d5110f7810d87f0ed968b022a8f42ef77e
pdf-font-stream PDF embedded font (sfnt) at offset 0x571B6 7740 bytes
font_01_sfnt_off000587f1.bin
127c7e9f689e4a64d81e84b9a7e7388cad0ac2a2913d4f7603b7fd79d029c6ad
pdf-font-stream PDF embedded font (sfnt) at offset 0x587F1 13324 bytes