Malicious PDF — malware analysis report

Static analysis result for SHA-256 53bae20bc84da089…

MALICIOUS

PDF

188.0 KB Created: 2015-07-23 23:46:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9d69154e102ef2714d7eb3339cd32844 SHA-1: 6dff3faba2dcaf2f17c66c0cb8ee05c5475f8de5 SHA-256: 53bae20bc84da0894651606ac147c8ae32544b099eb123758a037b318c5221a4
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The embedded link likely leads to a site designed to host further malicious content or phishing pages. No scripts were extracted, but the primary malicious action is the redirection via the embedded URL.

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+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%8F%D0%B7%D1%8B%D0%BA%D0%B5+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B4%D0%BB%D1%8F+%D0%B2%D0%B8%D0%BD%D0%B4%D0%BE%D0%B2%D1%81+7&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184383_biletuy_na_pogruzchik.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184910_skachat_fifa_10_ukrainskaya_liga_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185661_zhurnal_avtorskogo_nadzora_za_stroitelstvom_primer_zapolneniya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002496e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2496E 3556 bytes
font_01_sfnt_off000256f1.bin
617711643594691774293e708b6b88f95e442fd5d88648a139b22cc0b7ec9ffb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x256F1 15148 bytes
font_02_sfnt_off000285d4.bin
61d14ba452ff6e0dc179888c2f398a787bbab14a9cc52f92372d80655ecc5ef6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285D4 14512 bytes
font_03_sfnt_off0002b0b7.bin
6c70de3782ffb365b1d16e786d34c110f26f08d33238ffb3b597875b6aa6c8a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0B7 7308 bytes
font_04_sfnt_off0002c61e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C61E 6084 bytes
font_05_sfnt_off0002d5b3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5B3 3752 bytes

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