Malicious PDF — malware analysis report

Static analysis result for SHA-256 0056c523bb631ebb…

MALICIOUS

PDF

185.0 KB Created: 2015-08-08 13:02:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bba9d13478d1784a59b69aa0a012afbb SHA-1: 5dc894b0ef18875f4ebddf8246ff5cbab5c9e533 SHA-256: 0056c523bb631ebb6aabf3a90c4d7a0d4c3af900f35119300635e478cab3a348
92 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector URL, botcraftman.ru. This heuristic, combined with the ML classifier's high confidence, indicates the document is designed to redirect users to a malicious site. The embedded URL is the primary indicator of compromise.

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%B0%D0%BA+%D0%BF%D0%BE%D0%BB%D1%8C%D0%B7%D0%BE%D0%B2%D0%B0%D1%82%D1%8C%D1%81%D1%8F+lut+buddy+101+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4389/4389022_skachat_besplatno_avtokad_2011_russkiy_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385584_tehnologicheskaya_shema_proizvodstva_hleba.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385286_skachat_lestnicu_v_avtokade.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_off00023fe6.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FE6 3556 bytes
font_01_sfnt_off00024d69.bin
c5fae4a05c2156eb1f23ac026148242118da7d0199a7b8960a8f40bfa2af1a0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D69 14148 bytes
font_02_sfnt_off00027a05.bin
c32ac37ccfe18fce1af9cf62035cb15b456d52a006170ca9f36c96ea0adaece4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A05 14712 bytes
font_03_sfnt_off0002a579.bin
81e470b68fd8bc1ba61d30ab7e931f879aade1695c75dcb5408b9dc34664306c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A579 7088 bytes
font_04_sfnt_off0002ba32.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA32 6084 bytes
font_05_sfnt_off0002c9c7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9C7 3752 bytes

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