Malicious PDF — malware analysis report

Static analysis result for SHA-256 717eebf11800dc66…

MALICIOUS

PDF

186.4 KB Created: 2015-07-24 13:46:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2b87befd7a208943d432ebd94ca63f64 SHA-1: 71dd8a4d3d250d5c604752408c53cbdab548cd18 SHA-256: 717eebf11800dc66ef94219a386670254fe69b7b034c8f0baeec7710c5f90ec0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of the malicious link strongly suggests an attempt to trick the user into visiting a harmful site.

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+%D0%B8%D0%B3%D1%80%D1%83+%D0%BD%D0%BE%D0%B2%D1%8B%D0%B9+%D1%87%D0%B5%D0%BB%D0%BE%D0%B2%D0%B5%D0%BA+%D0%BF%D0%B0%D1%83%D0%BA+2+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+2014&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192688_evgeniy_shiryaev_muzuyka_iz_seriala_dom_s_liliyami_notuy.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189676_kak_uznat_rezultatuy_gia_2015_po_matematike_v_moskve.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184582_skachat_shablonuy_prezentacii_powerpoint.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_off0002459a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2459A 3556 bytes
font_01_sfnt_off0002531d.bin
e32b1003140fed2a9ed35177276b57acc6c964832b05ec0517a37ee18983d897		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2531D 14468 bytes
font_02_sfnt_off0002807f.bin
5b0c29db7642895d914e9503516beaff1663aaf355408ba3f797c73523165a05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2807F 14468 bytes
font_03_sfnt_off0002ab35.bin
3e248496a2030a3224e54da3d43c97f241dc985e6934693cfd45d6111baa10c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB35 7100 bytes
font_04_sfnt_off0002bfe7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFE7 6084 bytes
font_05_sfnt_off0002cf7c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF7C 3752 bytes

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