Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd73af8113155f3c…

MALICIOUS

PDF

185.8 KB Created: 2015-08-08 09:34:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 223f462dca5ad6daac35ed4b8ad2eba1 SHA-1: 73706efac692ae946cbe572b2bfc3f46c4eaabcf SHA-256: fd73af8113155f3c680ef6ee36da4d3fee4c6814e8153b95ad546566075c95b6
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 URL, botcraftman.ru. This indicates the document is likely intended to lure the user to a malicious site for phishing or malware download. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was not parsable.

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%B0%D0%BA+%D0%B2%D0%BE%D1%81%D1%81%D1%82%D0%B0%D0%BD%D0%BE%D0%B2%D0%B8%D1%82%D1%8C+%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%82%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%BD%D1%8B%D0%B5+%D1%84%D0%B0%D0%B9%D0%BB%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383840_the_elder_scrolls_povelitel_dush_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383743_egye_po_russkomu_2015_onlayn_s_ballami.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383732_delfinariy_na_russkom_ostrove.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024448.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24448 3556 bytes
font_01_sfnt_off000251cb.bin
e83f31719dac14f99ddcd2f60a52eb0b41b85099d9bcb16fcbc4581a32e53744		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251CB 14308 bytes
font_02_sfnt_off00027ecf.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27ECF 14468 bytes
font_03_sfnt_off0002a982.bin
51fffa75c03005e0eb29608b3a4f381b0423d729f54e00dfd9ec92611a3e9535		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A982 6876 bytes
font_04_sfnt_off0002bd3e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD3E 6084 bytes
font_05_sfnt_off0002ccd3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCD3 3752 bytes

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