Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b752d2d84185818…

MALICIOUS

PDF

185.0 KB Created: 2015-07-23 21:02:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bcc4b3e113d075cf8806f13c064f7c10 SHA-1: a9d28859f43280fcd158bd00fcd1ef7fbd3a03c6 SHA-256: 9b752d2d841858189e993f1f40511755583f93c6d27a0ab4212ea98e704c05ee
90 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. The ML classifier also flagged this PDF with high confidence. The embedded link likely leads to a site designed to exploit the user or deliver a secondary payload. No scripts were extracted from this sample.

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=Canon+ds126191+%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F+%D0%BF%D0%BE+%D1%8D%D0%BA%D1%81%D0%BF%D0%BB%D1%83%D0%B0%D1%82%D0%B0%D1%86%D0%B8%D0%B8zip&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184754_programma_razvitiya_dou_v_sootvetstvii_s_fgos_20142018g.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184646_dnevnik_slabaka_kniga_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183202_kursovoy_proekt_po_ventilyacii.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a3cf.bin
2d110b8ada5e4d785df1366ceca07fc5796ce69c448bf05b23678480a36939d3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A3CF 7552 bytes
font_00_sfnt_off00023e6f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E6F 3556 bytes
font_01_sfnt_off00024bf2.bin
5152b53b28590c1dde2b6b2eaf34af263a03b49aaa0172253e6b27c504a72278		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BF2 14388 bytes
font_02_sfnt_off000278d5.bin
91044c1e88b1f9784e1c38a0cf5fc2ecc4f5e6c661d7ddf0879ca2a21733461b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x278D5 14736 bytes
font_04_sfnt_off0002ba14.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA14 6084 bytes
font_05_sfnt_off0002c9a9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9A9 3752 bytes

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