Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d8ee41254c985ef…

MALICIOUS

PDF

192.7 KB Created: 2015-07-25 00:24:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4e7135e7d8f0ed218c1906626fc359b3 SHA-1: d3f117fb4d1b8af1fd3ade854c230416e36920e1 SHA-256: 6d8ee41254c985ef7e724ede04c6a20e7b111b76c93f56e121c0503b1c34ebff
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for containing a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL `http://botcraftman.ru/...` is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware download page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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%B0%D1%80%D1%82%D1%8B+%D0%BB%D1%8E%D0%B1%D0%B2%D0%B8+%D0%BA%D1%8D%D0%BC%D0%BF+%D1%80%D0%BE%D0%B1%D0%B5%D1%80%D1%82+%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/5//4191/4191928_gia_po_russkomu_yazuyku_v_9_klasse.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190298_skachat_sheyderuy_dlya_maynkraft_164.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191805_avtobiografiya_bendzhamina_franklina_audiokniga.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_off00025ebf.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25EBF 3556 bytes
font_01_sfnt_off00026c42.bin
552cc95a8d9bc41386ce87a54bd740a45971ecd15b4ba82213e18e002d268735		 pdf-font-stream PDF embedded font (sfnt) at offset 0x26C42 14580 bytes
font_02_sfnt_off00029a0a.bin
b9592ff8a1291ab1286b0c1071b52d2f6d078944aa4e9bb772e5273dba8a45c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x29A0A 14468 bytes
font_03_sfnt_off0002c4bc.bin
5c192ee81f2e43d9f03e37386824d4e444ce2639dc4fe94aff543a6cffc59986		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4BC 7064 bytes
font_04_sfnt_off0002d925.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D925 6084 bytes
font_05_sfnt_off0002e8ba.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8BA 3752 bytes

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