Malicious PDF — malware analysis report

Static analysis result for SHA-256 de407d8d169fa879…

MALICIOUS

PDF

185.5 KB Created: 2015-08-05 21:47:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c5b5550f93c92c730f550e82b8c611ab SHA-1: fc991051cb007f3571f86f1244d6711c2496c425 SHA-256: de407d8d169fa879467e82aaae3182ab1910966672457a9e574399d59c4e8147
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector at botcraftman.ru. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was heavily truncated, limiting further analysis of the exact lure.

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=3d+%D1%80%D0%BE%D0%BB%D0%B8%D0%BA%D0%B8+%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%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307739_skachat_beloff_2014_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304865_programmuy_dlya_planshetnuyh_pk.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304958_plan_na_kazhduyy_den_v_1_mladshey_gruppe.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024309.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24309 3556 bytes
font_01_sfnt_off0002508c.bin
e50a17b2e32ccc707ba6ccd138370462de95c73637a5bcd0a0076fc65a2b2026		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2508C 14668 bytes
font_02_sfnt_off00027eaf.bin
54a9def00a75807df7245774544ce9570a28c7fcb87478bb619e965107c3684a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EAF 14468 bytes
font_03_sfnt_off0002a95b.bin
4b16d6c93c59515f9c5c9536e8417c022db844d6771a4077cdbe4a9be972ce9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A95B 6628 bytes
font_04_sfnt_off0002bc55.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC55 6084 bytes
font_05_sfnt_off0002cbea.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBEA 3752 bytes

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