Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f073f854e5a85de…

MALICIOUS

PDF

185.8 KB Created: 2015-07-25 09:05:43 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fa909a81af40f893c6b7cfea0024b830 SHA-1: 0a2d3af784ec3835a15524d80309e879408515f1 SHA-256: 3f073f854e5a85dee5bf4a011c6e3b38304b96df4176cfd6ead076b0031ac641
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL `http://botcraftman.ru/...` is highly suspicious and likely serves as a lure to a malicious website. No scripts were extracted, but the presence of the malicious link strongly suggests a phishing or malware delivery attempt.

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=6+%D0%9F%D0%BE%D0%BB%D0%B8%D0%BA%D0%BB%D0%B8%D0%BD%D0%B8%D0%BA%D0%B0+%D1%85%D0%B0%D1%80%D1%8C%D0%BA%D0%BE%D0%B2+%D1%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5+%D0%B2%D1%80%D0%B0%D1%87%D0%B5%D0%B9&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192936_funkcionalnuyy_analiz_primeruy_resheniya_zadach.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193187_skachat_windows_81_x32.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197805_igra_prohozhdenie_gubka_bob_kvadratnuye_shtanuy_igrat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002430f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2430F 3556 bytes
font_01_sfnt_off00025092.bin
6547bf5c4e2f129f4d94447cd4961598c43c1f57fa04314440b50bc6bc3d4466		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25092 14984 bytes
font_02_sfnt_off00027f91.bin
0b72af0ee117648e30a622614851eb08bf400edc1edc319c6a3d8bc100386636		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F91 14532 bytes
font_03_sfnt_off0002aa84.bin
1beb3d1f36b1c84564078d491ecfcd3f289e6cb8023c07faa2531fc8b503d1ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA84 6636 bytes
font_04_sfnt_off0002bd75.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD75 6084 bytes
font_05_sfnt_off0002cd0a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD0A 3752 bytes

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