Malicious PDF — malware analysis report

Static analysis result for SHA-256 6671ce173e79be60…

MALICIOUS

PDF

188.0 KB Created: 2015-08-05 15:42:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 994dadfde460b26396af591e82bce301 SHA-1: de1742ace68cd0409660d07db438c9c2a7b58600 SHA-256: 6671ce173e79be60525ac6998f0078655f53e6c370aa8358dae970d525d7d1ee
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. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it is designed to initiate a malicious redirect upon user interaction.

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%BC%D0%B0%D0%B9%D0%BA%D1%80%D0%BE%D1%81%D0%BE%D1%84%D1%82+%D0%B2%D0%B8%D0%B7%D0%B8%D0%BE+2010+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B0%D1%8F+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8F+%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//4305/4305994_blank_akta_revizii_v_magazine.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305161_skachat_directx_9_dlya_xp.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304660_cvetok_karibskogo_morya_na_russkom.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_off00024b5e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B5E 3556 bytes
font_01_sfnt_off000258e1.bin
92d22af17d0897743116c7d9733eb97d0cc8e9976e9b881673eb493bd9909717		 pdf-font-stream PDF embedded font (sfnt) at offset 0x258E1 14224 bytes
font_02_sfnt_off000285b1.bin
a949981b14503b518f9ab23f757515b5b10c80369f86701cc36d0972d8422450		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285B1 14468 bytes
font_03_sfnt_off0002b066.bin
804f77cc55bd87d9e52b1f6528647fa5846ed48c30895194bb9486a631eeec5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B066 7408 bytes
font_04_sfnt_off0002c62a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C62A 6084 bytes
font_05_sfnt_off0002d5bf.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5BF 3752 bytes

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