Malicious PDF — malware analysis report

Static analysis result for SHA-256 297fe63ab47d23fb…

MALICIOUS

PDF

389.5 KB Created: 2015-08-22 08:51:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f461a9941f08d04efecb91343f81069c SHA-1: 4950e9ab5c07bf8ca106acc53aa1fe8031a7c479 SHA-256: 297fe63ab47d23fb4b647c76e2446f17d2701d8dbc55653172022419af332e5c
90 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a redirect to known malicious infrastructure at http://botcraftman.ru/. This strongly suggests the document's purpose is to lure the user to a malicious site. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9945

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%B0%D1%83%D0%B4%D0%B8%D0%BE%D0%BA%D0%BD%D0%B8%D0%B3%D0%B0+%D0%B7%D0%B0%D1%85%D0%B0%D1%80+%D0%B1%D0%B5%D1%80%D0%BA%D1%83%D1%82+%D0%B8%D0%B2%D0%B0%D0%BD+%D1%84%D1%80%D0%B0%D0%BD%D0%BA%D0%BE+%D1%81%D0%BB%D1%83%D1%88%D0%B0%D1%82%D1%8C+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674468_tatuirovki_v_zone_bikini_foto.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674479_skachat_kartuy_dlya_navitel_7000_dlya_android.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005cedb.bin
1e5c8aebbac9b6a1b75c64dc401ee0405e1ab184b97913e8ed8b64c6171a95c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CEDB 8228 bytes
font_01_sfnt_off0005e6c2.bin
88da6178846f6581f9ef4217e83259d219dc14d18fba8b6a7f7a814931a7fa3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6C2 14904 bytes

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