Malicious PDF — malware analysis report

Static analysis result for SHA-256 769fe5f6f3c8b802…

MALICIOUS

PDF

183.0 KB Created: 2015-07-24 11:48:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 14abf463c92c8e5c93312fea8bad24ce SHA-1: 45455cb3b9cda0e83661303a8ca22ac718b42f38 SHA-256: 769fe5f6f3c8b80224c9df00ea51ec12b859e4aa5bf0014418c357b5922ac566
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to known malicious redirector infrastructure, 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 directly extracted, the presence of embedded URLs and the heuristic firings strongly suggest a malicious intent, likely related to phishing or malware delivery.

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+ziphone+30+%D0%B4%D0%BB%D1%8F+windows&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185512_zhukovskiy_kak_muyshi_kota_horonili_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187008_skachat_miracast_dlya_windows_7.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189051_adobe_flash_player_dlya_windows_mobile.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off00029d5a.bin
344912b1749b97829b223cc2d4ba514022065179559432aeedafb8b4b23984f6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x29D5A 7112 bytes
font_00_sfnt_off00023730.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23730 3556 bytes
font_01_sfnt_off000244b3.bin
c83c9c756d0ce40d1e9bc412743191858be8512dd34476b0adcd6701e58f52d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x244B3 14744 bytes
font_02_sfnt_off0002721e.bin
971d51613532911a73f126cb7703bc73c5428fe8e71d4371ffbeaa5d0e958e98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2721E 14688 bytes
font_04_sfnt_off0002b218.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B218 6084 bytes
font_05_sfnt_off0002c1ad.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1AD 3752 bytes

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