Malicious PDF — malware analysis report

Static analysis result for SHA-256 f925c44ac3fa5e22…

MALICIOUS

PDF

186.6 KB Created: 2015-07-27 23:44:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d861466c833466a61261947157c8e4db SHA-1: 90fa8e73351d89af66a97bb85a1bb321bcdd30d2 SHA-256: f925c44ac3fa5e22c814049455bd4543b5f902d19c23b841091d36e46c79922e
90 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The ML classifier output of 0.998157 further supports this assessment. The embedded URL `http://botcraftman.ru/...` is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware download site. No scripts were extracted, and the document body was not sufficiently readable to provide further context.

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%BA%D0%BE%D0%B4%D1%8B+%D0%B2%D0%BE%D1%81%D1%81%D1%82%D0%B0%D0%BD%D0%BE%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BD%D0%B0+%D0%B3%D0%B0%D0%BB%D0%B0%D0%BA%D1%82%D0%B8%D0%BA%D1%83+%D0%B7%D0%BD%D0%B0%D0%BA%D0%BE%D0%BC%D1%81%D1%82%D0%B2+2015&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200222_dyevid_allen_kak_privesti_dela_v_poryadok_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4229/4229225_ukrotitel_meduzuy_gorgonuy_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4227/4227374_skachat_programmu_okneo_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002454d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2454D 3556 bytes
font_01_sfnt_off000252d0.bin
e368a15b660a763c7aa0abcbdcda29d903416a28486e9a5f0c980fbc4aa09a18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252D0 14540 bytes
font_02_sfnt_off0002808c.bin
0d510f439a73eae665af138ecef4372c9b1dc55d02d5656a9604ccfb30fc5e3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2808C 14640 bytes
font_03_sfnt_off0002abbf.bin
a3f523a7ed3df92667859209e091c13257d95f8fad35a45a03ffe91f562031e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABBF 7196 bytes
font_04_sfnt_off0002c0cc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0CC 6084 bytes
font_05_sfnt_off0002d061.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D061 3752 bytes

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