Malicious PDF — malware analysis report

Static analysis result for SHA-256 74ee90d357d7f691…

MALICIOUS

PDF

186.9 KB Created: 2015-08-05 13:21:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6a30211e5833628db3c9fd89e9b3606f SHA-1: ad5b4afe2eab83139df20a8fd4ae7843785c7b3d SHA-256: 74ee90d357d7f691d890809811960c34d5f1cb252fab174d0dc020f6adf0adba
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BA%D0%B0%D1%80%D1%82%D1%83+%D0%BD%D0%B0+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+18+%D0%B3%D0%BE%D1%80%D0%BE%D0%B4+%D0%BC%D0%BE%D1%81%D0%BA%D0%B2%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304452_new_english_file_intermediate_teachers_book_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304456_windows_8_pro_skachat_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_off00024631.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24631 3556 bytes
font_01_sfnt_off000253b4.bin
f4d9444ad220157e76ab4695ae96607279fe7229986cfb90b28c6657229e5fae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253B4 15104 bytes
font_02_sfnt_off00028299.bin
d5d8a66c54d88b1fd3e9751d1946ec7768e13949c664bd33b207189c6d131484		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28299 14468 bytes
font_03_sfnt_off0002ad4c.bin
e244c0df37eda8053f19f9ad1d084412b6186cefe478cbd8ffdb0a077841dcae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD4C 6960 bytes
font_04_sfnt_off0002c19d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C19D 6084 bytes
font_05_sfnt_off0002d132.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D132 3752 bytes

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