Malicious PDF — malware analysis report

Static analysis result for SHA-256 df4973e3c654b4e1…

MALICIOUS

PDF

186.2 KB Created: 2015-07-25 06:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1fd71f0da8abee97dde6da234c6312a8 SHA-1: d316aa824264d603d7bb38c4d54b13698ab8449c SHA-256: df4973e3c654b4e14c76c60f332025c4ac805c74a680d4be6c2d6ce7ae762fab
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was not parsable text.

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%B5%D0%B3%D1%8D+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+2015+%D1%81+%D1%80%D0%B5%D1%88%D0%B5%D0%BD%D0%B8%D1%8F%D0%BC%D0%B8+%D0%B8+%D0%BF%D0%BE%D1%8F%D1%81%D0%BD%D0%B5%D0%BD%D0%B8%D1%8F%D0%BC%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188364_skachat_gluhar_4_sezon_cherez_torrent_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197997_skachat_gta_4_na_pk.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193940_skachat_maynkraft_1_6_4_torrent_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002444e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2444E 3556 bytes
font_01_sfnt_off000251d1.bin
4e17130b20b396da96bd8aa4c73084b303fb981cd89cbdebd84bff187795a650		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251D1 14836 bytes
font_02_sfnt_off00028048.bin
bac0b5766c6837351292e659a532309cd72f068733764942b3d36afb25a47e9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28048 14700 bytes
font_03_sfnt_off0002ab9d.bin
479a2173675b58d6a23ff3077caf3f891a9336d78e0052f8b4ee31e9e7f1fd19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB9D 6796 bytes
font_04_sfnt_off0002bf30.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF30 6084 bytes
font_05_sfnt_off0002cec5.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEC5 3752 bytes

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