Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cfa199ae014cef9…

MALICIOUS

PDF

371.0 KB Created: 2015-08-22 10:27:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-02
MD5: 18199dfb687a8409cbb06e203cb8acc5 SHA-1: 17697718decb195e777f4586aa4e9c310bd3be07 SHA-256: 4cfa199ae014cef9b9284060834deee64ba230f68ffe8994127ad0ed481da4fd
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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%BF%D1%80%D0%BE%D0%B1%D0%BD%D1%8B%D0%B9+%D0%B5%D0%B3%D1%8D+%D0%BF%D0%BE+%D0%B0%D0%BD%D0%B3%D0%BB%D0%B8%D0%B9%D1%81%D0%BA%D0%BE%D0%BC%D1%83+2015&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4675/4675115_europa_universalis_4_skachat_torrent_russkaya_versiya.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674848_tanki_onlayn_testovuyy_server_prohozhdenie.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674941_skachat_anti_otdacha_dlya_css_v34.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58037 9212 bytes
SHA-256: 8cd599de512b7ac6e1ebe4b74b1bdca6ac326922c5176b0898252c51762b8b08
font_01_sfnt_off00059b35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59B35 16260 bytes
SHA-256: ae1c0ce33754e597c771b9e7879c8c7a35370aca210c68701ba57b79834ef0c7

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