Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d88e30dc57c6691…

MALICIOUS

PDF

185.0 KB Created: 2015-08-08 12:35:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 93f1501b62a02253c4cd70f817f6f801 SHA-1: d27aed86c540f9be65dd235c8ae3ab395052e599 SHA-256: 7d88e30dc57c669172d0f40c93204176e137afeda5f0c32a2d6d35b856c36817
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 flagged this PDF with high confidence. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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=perfect+world+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387181_dnevnik_po_proizvodstvennoy_praktike_tehnologa.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384263_sborniki_muzuyki_2012_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387988_obschaya_terapiya_3_sezon_skachat_torrent.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ed9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23ED9 3556 bytes
font_01_sfnt_off00024c5c.bin
e96b0b239f87ccb4f847c03e96b984626cdfbcef8ca6f989c494a6911c5f1938		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C5C 14672 bytes
font_02_sfnt_off00027a68.bin
d83775e87e09a8718ef8473ab1b4ccc780300ba1e8deb983a4546bf22e5a8d25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A68 14892 bytes
font_03_sfnt_off0002a61f.bin
35528627c5a5f716ab808a4e506cb33da3c41554d51d4137327f3ebac53fd392		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A61F 6904 bytes
font_04_sfnt_off0002ba1d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA1D 6084 bytes
font_05_sfnt_off0002c9b2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9B2 3752 bytes

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