Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3a78fb063d2fc4f…

MALICIOUS

PDF

186.6 KB Created: 2015-07-25 09:59:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6f072dffaff21af367281c37046eea53 SHA-1: fb282711e7f984a82ce17ab9e7f5890037272341 SHA-256: e3a78fb063d2fc4f5299839918412a23f23f2c10408c6bc1c8c0efcc079afbae
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 a 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%B3%D0%B8%D0%B0+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+2015+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B+%D0%BE%D1%82+31+%D0%BC%D0%B0%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194837_onlayn_testuy_cpd.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197603_russkie_kommentatoruy_dlya_pes_2014_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202262_skachat_gta_vice_city_stories_na_pc_cherez_torrent.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_off00024562.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24562 3556 bytes
font_01_sfnt_off000252e5.bin
2fb2c5b788872fc8d6338443c277188f9a11990afe3a13142fec10bd46ab45bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252E5 14884 bytes
font_02_sfnt_off00028104.bin
153639a29958f2c8f088b2ea066bc2ebd448cb97c288b339a00bdbef4471b0b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28104 14640 bytes
font_03_sfnt_off0002ac36.bin
1e906a4b3b5c0d3232ef9f168fe85b641d6cfc18165266d4522e23ac5d31d404		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC36 7028 bytes
font_04_sfnt_off0002c0b2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0B2 6084 bytes
font_05_sfnt_off0002d047.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D047 3752 bytes

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