Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4f7566a8bf5fc9d…

MALICIOUS

PDF

373.0 KB Created: 2015-08-19 15:37:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-31
MD5: 41736e66a26115da86cb6b506c948d07 SHA-1: 7fe8e40a57130d70aca4bacbe2e8fcc112e03340 SHA-256: f4f7566a8bf5fc9d1fc83dc6d522ee44a11e7b9b42b2b14eefafb1cf52e4ff11
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 malicious link strongly suggest a phishing or redirection attack. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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%9A%D0%B0%D0%BA+%D0%B7%D0%B0%D0%BF%D0%BE%D0%BB%D0%BD%D0%B8%D1%82%D1%8C+%D0%B4%D0%BD%D0%B5%D0%B2%D0%BD%D0%B8%D0%BA+%D0%BF%D1%80%D0%BE%D0%B8%D0%B7%D0%B2%D0%BE%D0%B4%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D0%BE%D0%B9+%D0%BF%D1%80%D0%B0%D0%BA%D1%82%D0%B8%D0%BA%D0%B8+%D0%B0%D0%B2%D1%82%D0%BE%D0%BC%D0%B5%D1%85%D0%B0%D0%BD%D0%B8%D0%BA%D0%B0&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627241_drug_vokrug_vhod_na_moyu_stranicu_onlayn.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496745_programma_dlya_obnovleniya_drayverov_windows_7.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627523_koduy_na_gta_sanandres_na_dengi_1000000000.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58FF7 8232 bytes
SHA-256: d035b4154792a30f6c71a3e4aa57147b73e84b0a89f18a94d5d09f6e7c6e9deb
font_01_sfnt_off0005a782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A782 14308 bytes
SHA-256: 1d05a3d9c22b7ff2ef007bf49a9aa2e3e60f86a5f1331c49631b7c336fb8fbf2

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