Malicious PDF — malware analysis report

Static analysis result for SHA-256 15fa3b90ef16be4a…

MALICIOUS

PDF

187.9 KB Created: 2015-08-06 12:25:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 12df5d1c5dc272948bd34f9cddaeddd2 SHA-1: 87180782f86634b3d36816e379087dd437d9acfa SHA-256: 15fa3b90ef16be4ad5d1815b9ac6c72e045b50d3d6719c7f9b259f1cbbd899ea
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to known malicious redirector infrastructure. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

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%9A%D0%BD%D0%B8%D0%B3%D0%B0+%D1%83%D1%87%D0%B5%D1%82%D0%B0+%D0%BC%D0%B0%D1%82%D0%B5%D1%80%D0%B8%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D1%85+%D1%86%D0%B5%D0%BD%D0%BD%D0%BE%D1%81%D1%82%D0%B5%D0%B9+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4309/4309243_kollektivnaya_zhaloba_v_trudovuyu_inspekciyu_obrazec.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305162_sly_cooper_pruyzhok_vo_vremeni_prohozhdenie.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307967_rasporyazhenie_obrazec.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_off00024ae9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24AE9 3556 bytes
font_01_sfnt_off0002586c.bin
9e2d9afc4c0fa9cb4aa19c0a1ec68a68024d13a748cbb2ab7c7d10d8a00a08c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2586C 14924 bytes
font_02_sfnt_off00028717.bin
a6626c0bd3595dc776735a93968cf26fa9368d0e017313712711ccf7ec06347e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28717 14532 bytes
font_03_sfnt_off0002b207.bin
ca8504b49a6506455298854a135bf0a47054a0aefabaad21c1bd06f3393e5746		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B207 6872 bytes
font_04_sfnt_off0002c5ce.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C5CE 6084 bytes
font_05_sfnt_off0002d563.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D563 3752 bytes

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