Malicious PDF — malware analysis report

Static analysis result for SHA-256 33e48eb377113e22…

MALICIOUS

PDF

188.1 KB Created: 2015-08-06 21:45:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5ee30b922f8ffd50a18813d9b1ffc2a6 SHA-1: f356ad44eb9c5347041d1c1e014a2c564bcc3f04 SHA-256: 33e48eb377113e22824ea697a9125cd09bbfd3bb22b2086281f865b7c02d3f7d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious link strongly suggests an intent to redirect the user to a harmful destination.

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%B3%D1%80%D1%8F%D0%B7%D0%BD%D1%8B%D0%B5+%D0%B4%D0%B5%D0%BD%D1%8C%D0%B3%D0%B8+%D0%B8+%D0%BB%D1%8E%D0%B1%D0%BE%D0%B2%D1%8C+23+%D1%81%D0%B5%D1%80%D0%B8%D1%8F+%D0%BE%D0%B7%D0%B2%D1%83%D1%87%D0%BA%D0%B0+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%8F%D0%B7%D1%8B%D0%BA%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4244/4244264_plan_rabotuy_s_odarennuymi_detmi_po_matematike.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4308/4308679_pyatochnaya_shpora_lechenie_narodnuymi_sredstvami_foto.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4321/4321447_klyuchi_dlya_vindovs_7_domashnyaya_bazovaya.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_off00024aa8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24AA8 3556 bytes
font_01_sfnt_off0002582b.bin
cf5b4d740c8f993f32933d37776098582177a48129c066c8061e0888bd410eab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2582B 14552 bytes
font_02_sfnt_off000285e2.bin
912cdad7a0df5ea0976bdf9492b26bd8c4a4b8652d494e31fdef8dcd2ccadd22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285E2 14468 bytes
font_03_sfnt_off0002b08e.bin
726201c63eb4218f8cd264ebd1e8099f5163600e8b8fc14f3bfbf8addb36dd1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B08E 7460 bytes
font_04_sfnt_off0002c672.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C672 6084 bytes
font_05_sfnt_off0002d607.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D607 3752 bytes

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