Malicious PDF — malware analysis report

Static analysis result for SHA-256 62b47bf892024fe9…

MALICIOUS

PDF

186.8 KB Created: 2015-07-23 20:41:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 131aaaf4f51f6ed6481a6c68a7fa432f SHA-1: 992f579d4b445d341bb8f667b1fc967b369c2636 SHA-256: 62b47bf892024fe9d9ba06fa7f7d153f88cca02c7034596ca03089493de2de28
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution. 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=%D0%BA%D0%BB%D1%8E%D1%87+%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%B0%D1%86%D0%B8%D0%B8+%D0%B4%D0%BB%D1%8F+windows+7+%D0%B4%D0%BE%D0%BC%D0%B0%D1%88%D0%BD%D1%8F%D1%8F+%D1%80%D0%B0%D1%81%D1%88%D0%B8%D1%80%D0%B5%D0%BD%D0%BD%D0%B0%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184646_dnevnik_slabaka_kniga_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184475_ppr_na_yelektromontazhnuye_rabotuy_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184483_i_yeho_letit_po_goram_skachat_epub.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002ab37.bin
c583bfdc12e6b1ebc9a4a4f234b7e47809aa3421a8930810cc69cd9ae7b57bf8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AB37 7560 bytes
font_00_sfnt_off0002453b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2453B 3556 bytes
font_01_sfnt_off000252be.bin
973e9704de7ced708418ba547cc264482820ff2ee54f3799853935b94072315a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252BE 14308 bytes
font_02_sfnt_off00027ff5.bin
83b9a0813c608eeb11998fa9ffc1f8558242565b0d08505644e0109a025d3f11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FF5 14640 bytes
font_04_sfnt_off0002c157.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C157 6084 bytes
font_05_sfnt_off0002d0ec.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0EC 3752 bytes

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