Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a3382e966944d6e…

MALICIOUS

PDF

368.9 KB Created: 2015-08-27 23:54:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: e192947588c0634fb678231f1336552a SHA-1: 5949278c2f4c378e60aa4052420f7b960cdda016 SHA-256: 2a3382e966944d6ea43ad6182d431b70a4a21ef341d6d24043e99b34a1f1492e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful website. The ML classifier also flagged this PDF with high confidence. The embedded URL is the primary indicator of malicious intent, likely serving as a delivery mechanism for further stages of an attack.

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%A1%D0%BF%D0%B8%D1%81%D0%BE%D0%BA+%D0%B4%D0%BE%D0%BA%D1%83%D0%BC%D0%B5%D0%BD%D1%82%D0%BE%D0%B2+%D0%B4%D0%BB%D1%8F+%D0%BF%D0%BE%D0%BB%D1%83%D1%87%D0%B5%D0%BD%D0%B8%D1%8F+%D1%81%D0%BE%D1%86%D0%B8%D0%B0%D0%BB%D1%8C%D0%BD%D0%BE%D0%B9+%D1%82%D1%80%D0%B0%D0%BD%D1%81%D0%BF%D0%BE%D1%80%D1%82%D0%BD%D0%BE%D0%B9+%D0%BA%D0%B0%D1%80%D1%82%D1%8B&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787900_koduy__vida__predprinimatelskoy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787930_skachat__besplatno__igru_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787783_avast__fayl_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005804f.bin
a5914efb586490d0790128572d3b616782a9d6c3da9f5840e6e519d0e7ce1109		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5804F 8120 bytes
font_01_sfnt_off00059789.bin
e418ea7ce8b307ef2cf4abc5090371980e0aed3707d4a21a857e7fa6b7eac42b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59789 13748 bytes

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