Malicious PDF — malware analysis report

Static analysis result for SHA-256 689440e08cafa0b9…

MALICIOUS

PDF

186.4 KB Created: 2015-07-24 03:35:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4524c371f5930c644b2c65b6052f89ce SHA-1: 6bfaeae8e25be16b94df154dd7881203b76c2a5c SHA-256: 689440e08cafa0b9184c0ce68c66c904a68e3d4a03bae7f92bd1b2830deedabb
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent. No scripts were extracted, but the presence of a malicious link suggests an attempt to redirect the user to a compromised or malicious 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=%D0%9C%D0%B0%D0%B9%D0%BD+%D0%BA%D1%80%D0%B0%D1%84%D1%82+%D0%BB%D0%B0%D1%83%D0%BD%D1%87%D0%B5%D1%80+%D1%81+%D0%BC%D0%B0%D0%B4%D0%B0%D0%BC+%D0%BD%D0%B0+%D0%BE%D1%80%D1%83%D0%B6%D0%B8%D0%B5+%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/5//4187/4187170_rukovodstvo_po_remontu_honda_srv.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185201_uchebniki_2_klass_fgos_shkola_rossii.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185548_uznat_rezultatuy_gia_2015_po_matematike_9_klass_po_pasportu.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_off0002462b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2462B 3556 bytes
font_01_sfnt_off000253ae.bin
4e44ec4b671e8642e78eadb6b7da69c7001c3fe591973df9b7209a4a9fec0809		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253AE 14452 bytes
font_02_sfnt_off00028112.bin
c457fcfaab6f548331a7572fefd0d96ae260c7787e9dff2b51ae1aa36573dbb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28112 14468 bytes
font_03_sfnt_off0002abc1.bin
b1736235b56e6dacf473a6dfbde473cfc55b7fc62c08fcffe72c04d3da4f81aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABC1 6940 bytes
font_04_sfnt_off0002bfdd.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFDD 6084 bytes
font_05_sfnt_off0002cf72.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF72 3752 bytes

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