Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b9db43a6d52b9c0…

MALICIOUS

PDF

187.2 KB Created: 2015-07-25 23:45:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6c2b4658c7314a3b6342c12704b9e0db SHA-1: c46627c129aa396f65cef9a025ea39f3eb3ccd8f SHA-256: 6b9db43a6d52b9c0a0e907a0285690a72860b1cc76637efd83ab92c19e2315fb
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest it's designed to exploit user interaction. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BA%D0%BD%D0%B8%D0%B3%D1%83+%D0%B4%D0%B5%D0%B2%D1%83%D1%88%D0%BA%D0%B0+%D1%81+%D1%82%D0%B0%D1%82%D1%83%D0%B8%D1%80%D0%BE%D0%B2%D0%BA%D0%BE%D0%B9+%D0%B4%D1%80%D0%B0%D0%BA%D0%BE%D0%BD%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4205/4205464_skachat_play_market_dlya_java.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4199/4199324_fermer_simulyator_2013_skachat_moduy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188487_proekt_basseyna_skachat.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_off0002483c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x2483C 3556 bytes
font_01_sfnt_off000255bf.bin
7d2892d008aab93066d9331a75d4d5869b7d079bf284cbb036930d72df9a498e
pdf-font-stream PDF embedded font (sfnt) at offset 0x255BF 15020 bytes
font_02_sfnt_off00028432.bin
8c5e5bc4674cee60ec6c1619e60533ff44be00efca6b5f228c587d2f19a61a12
pdf-font-stream PDF embedded font (sfnt) at offset 0x28432 14520 bytes
font_03_sfnt_off0002af01.bin
baa344e5f4429c5323e962ef6d1a691a71ee125b8356f7fb70bffe4f5a79247b
pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF01 6960 bytes
font_04_sfnt_off0002c31f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C31F 6084 bytes
font_05_sfnt_off0002d2b4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2B4 3752 bytes