Malicious PDF — malware analysis report

Static analysis result for SHA-256 72afad684335f75a…

MALICIOUS

PDF

187.1 KB Created: 2015-08-08 09:39:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 64e9aca85024ef90b8052b79f2fce412 SHA-1: 09dd5d6a36a77b0686b4da1460dcc2095254b5a8 SHA-256: 72afad684335f75a57a7c6ffe5cf8f6701778afae1188be93963e7e9c4171f20
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The presence of an embedded URL suggests an attempt to lure the user to a malicious site, likely for phishing or to download further malware. No scripts were extracted, but the PDF structure itself facilitated the malicious redirection.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D0%B8%D0%BC%D0%BF+4+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%8F%D0%B7%D1%8B%D0%BA%D0%B5+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383840_the_elder_scrolls_povelitel_dush_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383802_ulicuy_razbituyh_fonarey_1_sezon_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4226/4226849_microsoft_word_skachat_besplatno.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_off000248d5.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248D5 3556 bytes
font_01_sfnt_off00025658.bin
c6409f80b40fd2ff54833d06283248637f2621a1760a09106662459690aea81c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25658 14332 bytes
font_02_sfnt_off0002836f.bin
67d53b5d93f9c1a2a208a20cc40158f0d1b9c29be983670d6b7c684d37a817b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2836F 14468 bytes
font_03_sfnt_off0002ae1f.bin
0e3b0f01f4079875324cfa22a97ed389871905eea3b8fd69b023f83496a00cb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE1F 7092 bytes
font_04_sfnt_off0002c2cb.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2CB 6084 bytes
font_05_sfnt_off0002d260.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D260 3752 bytes

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