Malicious PDF — malware analysis report

Static analysis result for SHA-256 28e86aa9f6d71797…

MALICIOUS

PDF

374.3 KB Created: 2015-08-20 07:22:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-06-13
MD5: b56cff070b4eb8b1a16082fbc93b8180 SHA-1: 0fce3b8841fa722a40cf57d5543690f287e774ab SHA-256: 28e86aa9f6d7179757d9d62722cad0ba28c2e97c080b6534b526b57d22e86734
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. The ML classifier also flagged this PDF with high confidence. The document body is heavily obfuscated and unreadable, but the presence of a malicious URL is a strong indicator of malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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%B2%D0%B8%D1%82%D0%B0%D0%BB%D0%B8%D0%B9+%D0%B7%D1%8B%D0%BA%D0%BE%D0%B2+%D0%BD%D0%B0%D0%B5%D0%BC%D0%BD%D0%B8%D0%BA+%D0%B5%D0%B3%D0%BE+%D0%B2%D0%B5%D0%BB%D0%B8%D1%87%D0%B5%D1%81%D1%82%D0%B2%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+fb2&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638833_skachat_vzlomschik_wifi_na_android.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638801_simulyator_bmp_2_igra.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638839_rezultatuy_egye_2015_po_matematike_po_pasportnuym_dannuym.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059171.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59171 8628 bytes
SHA-256: dff90193970a41bf137f483702e93a83d9c471d0ccca705ba0caf2bde8f284de
font_01_sfnt_off0005aa5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA5F 14780 bytes
SHA-256: f6c0f59cefec87fe503bca54a9d63efc4ac64a085db30ec167be243fb429620f

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