Malicious PDF — malware analysis report

Static analysis result for SHA-256 06e1a8b10262500d…

MALICIOUS

PDF

186.8 KB Created: 2015-07-23 20:38:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fe5d676625fbce4c1ef01eed0d3eb2c1 SHA-1: fb206adc231e8090dfe89e943403304018d2c492 SHA-256: 06e1a8b10262500df5247285baa83c39fe59e04d68889e2b77f51a2663a1d8d8
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is designed to trick users into downloading software. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit user interaction for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8785443-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8785443-0
  • 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+autocad+2014+rus+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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//4183/4183177_kursovoy_proekt_po_arhitekture_zdaniy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184632_rayan_kevin_van_helsing_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184495_uroki_po_russkomu_yazuyku_5_klass_laduyzhenskaya_fgos.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_off0002aaca.bin
7ea0a7561c4a81b1a194aecce455f8387548ded49d74af7cb4922af1fdc9b53d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AACA 7672 bytes
font_00_sfnt_off000245e3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x245E3 3556 bytes
font_01_sfnt_off00025366.bin
bad52c5fb00e3bfdd72c6be80fa24ebd7377971c4b2b56a438aeee2c8077945f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25366 14256 bytes
font_02_sfnt_off00027fc1.bin
19a2a144fab85cfc0b8f10309bfedcd859ca2555b692d91adaf98ca1f01d685d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FC1 14576 bytes
font_04_sfnt_off0002c18b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C18B 6084 bytes
font_05_sfnt_off0002d120.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D120 3752 bytes

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