Malicious PDF — malware analysis report

Static analysis result for SHA-256 6085a8d5ca2bbb81…

MALICIOUS

PDF

186.3 KB Created: 2015-07-23 19:53:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c773137827184b27d50c787c2c1b4fe7 SHA-1: af262cec65ff7ce10c5b051226df359e42af30a0 SHA-256: 6085a8d5ca2bbb810542f6cbe4c95f848a74af0689c4c66d37271b451b150e51
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to a suspicious domain, likely serving as a lure to a malicious site. No scripts were extracted, but the presence of a malicious link is sufficient evidence of a phishing or redirection 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=Speed+art+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%B4%D0%BB%D1%8F+%D1%80%D0%B8%D1%81%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184295_skachat_mp_flooder.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183194_kursovoy_proekt_po_vodosnabzheniyu.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184290_razrabotka_urokov_v_nachalnuyh_klassah_v_uzbekistane.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_off000242b1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242B1 3556 bytes
font_01_sfnt_off00025034.bin
1a071eed9079cf4496a4c7fbe414f72b28ad8f3f6661c7334c0c52fe2c9aba14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25034 14676 bytes
font_02_sfnt_off00027e03.bin
0a4bd30f82d77a4a7575a085cdb2d8a499bc9f580727ecd03fb18e4f8db39cff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E03 14792 bytes
font_03_sfnt_off0002a9bc.bin
0dabeb3664678a079dced45c634d5214a8af006bfb134cf8c5aff6608714aebc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9BC 7412 bytes
font_04_sfnt_off0002bf85.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF85 6084 bytes
font_05_sfnt_off0002cf1a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF1A 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.