Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e3cb7aec5e9711a…

MALICIOUS

PDF

189.8 KB Created: 2015-07-25 05:52:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 92e8de4b5b914fcace28eb44aa27a925 SHA-1: a55f65a43c0aed207249e9ca3f87b9529f8ab3c9 SHA-256: 5e3cb7aec5e9711aa72bc4d29b5b0b79d6c743686bb717da6160d949fc7889b8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a link to a known malicious redirector. The document body appears to be malformed or truncated, preventing a detailed analysis of its content. The presence of the malicious link strongly suggests an attempt to lure the user to a harmful website.

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%BB%D0%B8%D0%BD%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B9+%D0%B0%D0%BD%D0%B0%D0%BB%D0%B8%D0%B7+%D0%BA%D1%80%D0%BE%D0%B2%D0%B8+%D1%80%D0%B0%D1%81%D1%88%D0%B8%D1%84%D1%80%D0%BE%D0%B2%D0%BA%D0%B0+%D1%83+%D0%B2%D0%B7%D1%80%D0%BE%D1%81%D0%BB%D1%8B%D1%85+%D0%BD%D0%BE%D1%80%D0%BC%D0%B0+%D1%82%D0%B0%D0%B1%D0%BB%D0%B8%D1%86%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4199/4199879_zvezdnaya_elena_kiran_vuyzov_voina.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195852_skachat_maynkraft_s_modom_industrial_craft_2.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191560_skachat_pover_point_torrent.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_off000250ea.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250EA 3556 bytes
font_01_sfnt_off00025e6d.bin
a5ca2bbffc04ef975f0b432cbc0c3726650b0ef53d01b0ce1c56601a639a1faf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25E6D 15044 bytes
font_02_sfnt_off00028ccf.bin
b0aa0e81413123b220610ae3fd2d1fe33630cd68c928d28466d78b5683ac8ba9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28CCF 14588 bytes
font_03_sfnt_off0002b7e0.bin
0b2a33b2902c036edca1e9a3b80a954f640ae267a4bc6fdd5aa506804e0dc41d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B7E0 7384 bytes
font_04_sfnt_off0002cd70.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD70 6084 bytes
font_05_sfnt_off0002dd05.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD05 3752 bytes

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