Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e4018f6fd579d21…

MALICIOUS

PDF

186.0 KB Created: 2015-07-25 02:45:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fec886e37c501124e4c24a9409d68733 SHA-1: 8302877f6060fbb6f48a954e2150e3c26780e10e SHA-256: 7e4018f6fd579d212f3e698e2d0a2ca861287dd67b37e58b5ca7a8384145a2b0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The embedded URL likely serves as a lure to download a second-stage payload, aligning with common phishing tactics.

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%9E%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D1%85%D0%B0%D1%80%D0%B0%D0%BA%D1%82%D0%B5%D1%80%D0%B8%D1%81%D1%82%D0%B8%D0%BA%D0%B8+%D0%BD%D0%B0+%D0%B2%D0%BE%D0%BB%D0%BE%D0%BD%D1%82%D0%B5%D1%80%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195856_skachat_microsoft_word_2010_besplatno_dlya_windows_7_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197628_gdz_po_vsem_predmetam_7_klass_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197199_skachat_warcraft_3_frozen_throne_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_off00024427.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24427 3556 bytes
font_01_sfnt_off000251aa.bin
f06c0e070ab14bc832ea814b9ce6d7d844890cdacfae390afab0bfc012dda9e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251AA 14936 bytes
font_02_sfnt_off00027feb.bin
0627de34e839737c03af0d9f30945bab194dadec018a1d0b90d3566f99dbb150		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FEB 14532 bytes
font_03_sfnt_off0002aada.bin
d0b5406bdd7a3b57841c8d3dffadd8f9aa14c8eeae1affce4f5c2009d6d6af9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AADA 6688 bytes
font_04_sfnt_off0002be0c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE0C 6084 bytes
font_05_sfnt_off0002cda1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDA1 3752 bytes

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