Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f5cb82a692334d3…

MALICIOUS

PDF

185.7 KB Created: 2015-08-08 09:47:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c12720df027aeb85a54f38200f840736 SHA-1: f2aac2304ca2fd657228d4e53625225cd3d9bb74 SHA-256: 5f5cb82a692334d380384103dd3c880bc1f42b972d123cfa708b332173510aa7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious by an ML classifier and contains a link to a known malicious redirector. The embedded link, http://botcraftman.ru/, is likely intended to lead the user to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious URL strongly suggests a phishing or redirection attack.

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=%D1%82%D0%B5%D0%BA%D1%81%D1%82%D0%B8%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D1%84%D0%B0%D0%B1%D1%80%D0%B8%D0%BA%D0%B8+%D0%BC%D0%BE%D1%81%D0%BA%D0%B2%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383711_programma_dlya_tachpada.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384003_onlayn_igruy_ezda_na_kamaze_s_pricepom.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384343_scenariy_na_den_rozhdeniya_11_let_devochke.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_off00024309.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24309 3556 bytes
font_01_sfnt_off0002508c.bin
3abdcaaf22404e0fd1a633ccc7ad2a5eae738444b7442636828eda6d75038386		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2508C 14736 bytes
font_02_sfnt_off00027e9a.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E9A 14468 bytes
font_03_sfnt_off0002a94d.bin
2be2dfeaf318b4dc47a720e472c5672da3a5c11470226cfed7e9d902db3a8280		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A94D 6840 bytes
font_04_sfnt_off0002bcfb.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCFB 6084 bytes
font_05_sfnt_off0002cc90.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC90 3752 bytes

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