Malicious PDF — malware analysis report

Static analysis result for SHA-256 6372f60b0524275c…

MALICIOUS

PDF

368.8 KB Created: 2015-08-24 00:25:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 977a946bc958d090efe05088144b981f SHA-1: dd00ac0944e03bb692684e81d5802711e4c39e0e SHA-256: 6372f60b0524275c1b895daa7891ec6e78a133ceb6478c085b60a30989ce4a78
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is confirmed as malicious and likely serves as a lure to a phishing site or a download host. No scripts were extracted, but the presence of a malicious URL strongly suggests an intent to compromise the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9940

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%97%D0%B0%D0%BF%D1%80%D0%BE%D1%81+%D0%B2+%D1%86%D0%B5%D0%BD%D1%82%D1%80%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9+%D0%BF%D0%BE%D0%B3%D1%80%D0%B0%D0%BD%D0%B8%D1%87%D0%BD%D1%8B%D0%B9+%D0%B0%D1%80%D1%85%D0%B8%D0%B2+%D1%84%D1%81%D0%B1+%D1%80%D0%BE%D1%81%D1%81%D0%B8%D0%B8+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693355_anekdotuy__mp3__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694205_programma__dlya__raspoznavaniya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693072_zvuk__ot__komarov_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057e00.bin
594bc9ca794d9fa39360eac1ea29982bd1467ad03b64a8a46772d6fba2253655		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57E00 9360 bytes
font_01_sfnt_off000598a3.bin
973134176df09eb7e73582128cd01eab12cd19cbd2ac7d29813f3ef15e3d9a5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x598A3 13488 bytes

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