Malicious PDF — malware analysis report

Static analysis result for SHA-256 1500096bed7286b1…

MALICIOUS

PDF

184.8 KB Created: 2015-08-08 14:18:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 544051cc753fed59ec38e7159a339bef SHA-1: cb42b33c95ebd18d36c9ad8de1975a698129e843 SHA-256: 1500096bed7286b1ff8c8df1bfdc7e08d91a9b106ff4fb58adb795a14e7eb990
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the PDF structure and the malicious URL suggest a phishing or malware distribution vector.

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%BF%D0%BB%D0%BE%D1%85%D0%B8%D0%B5+%D0%BF%D0%B0%D1%80%D0%BD%D0%B8+2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4392/4392887_obrazec_investicionnogo_proekta.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387121_rabochaya_programma_po_muzuyke_1_4_klass_po_kritskoy_fgos.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387808_boec_baki_3_sezon_skachat.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_off000240f8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240F8 3556 bytes
font_01_sfnt_off00024e7b.bin
b31cac55cb492a72c713431f7c9999a654893c4e0b0dfabc59190c2f46b4f35a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E7B 14544 bytes
font_02_sfnt_off00027c32.bin
f98b645aca6d245a2195847d674f344b5db8b22f01cd0174e01e87667ea1fec9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C32 14532 bytes
font_03_sfnt_off0002a721.bin
3c379f7b098ccbc2823368c82ab64a9c5a62efeac26e18ac9def912b48f0b68d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A721 6424 bytes
font_04_sfnt_off0002b965.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B965 6084 bytes
font_05_sfnt_off0002c8fa.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8FA 3752 bytes

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