Malicious PDF — malware analysis report

Static analysis result for SHA-256 64148a5c926b24bb…

MALICIOUS

PDF

186.4 KB Created: 2015-07-23 20:15:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6a1b243e5a03101b3a998e2f54b8696b SHA-1: dedd84af18c6f4a5b64b0c27d90399740b37b57a SHA-256: 64148a5c926b24bbfd41e563861c1ecd9da37b92bd8c80de06a13bebfa625729
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to known malicious redirector infrastructure, 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 presence of embedded URLs and the PDF structure suggest a malicious intent to redirect users, likely for phishing or malware delivery.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+gta+san+andreas+%D0%B1%D0%B5%D0%B7+%D0%BC%D0%BE%D0%B4%D0%BE%D0%B2+%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/5//4183/4183186_kursovoy_proekt_po_arhitekture_obschestvennoe_zdanie.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184448_rezultatuy_egye_po_matematike_2015_rostovskaya_oblast.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184450_gotovuye_html_koduy_dlya_saytov.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_off0002a95a.bin
56d9ca82eaabd8e3369b9e85d209516933f16af21035c31f113d27fe2af4ead8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A95A 7608 bytes
font_00_sfnt_off0002429f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2429F 3556 bytes
font_01_sfnt_off00025022.bin
704f62c34b1d2ee675d4f5490d45061729bae6cb98177affcbccb2b716d902e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25022 15008 bytes
font_02_sfnt_off00027e4a.bin
6519dada4a7fe4c953296f5f8c02dda405ec413a4909e77ad4fcaec25dea7d5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E4A 14576 bytes
font_04_sfnt_off0002bfca.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFCA 6084 bytes
font_05_sfnt_off0002cf5f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF5F 3752 bytes

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