Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cbff4772c4b7e2a…

MALICIOUS

PDF

373.8 KB Created: 2015-08-24 00:16:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-07
MD5: 5b7c704111b9dece7db0afdd5e1fd04d SHA-1: 9b42f364e882e155b6fdc57c673042162e60dcfb SHA-256: 3cbff4772c4b7e2a37bc1306650431cef2270c06a701754f5f29f0a4825ed3a9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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%B3%D1%82%D0%B0+%D1%81%D0%B0%D0%BD+%D0%B0%D0%BD%D0%B4%D1%80%D0%B5%D0%B0%D1%81+%D0%BA%D0%BE%D0%B4+%D0%BD%D0%B0+%D0%BF%D1%83%D0%BB%D0%B5%D0%BC%D0%B5%D1%82+%D0%BC%D0%B8%D0%BD%D0%B8%D0%B3%D0%B0%D0%BD&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694076_vuykroyka__bodi__dlya_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693204_mitsubishi__canter__c_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693145_windows__7__starter_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058af2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58AF2 8804 bytes
SHA-256: ca72b637ff16d513539c4ac16466c83a0ae13a89fadbf7d3de285d815b4d4da4
font_01_sfnt_off0005a3fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3FE 17208 bytes
SHA-256: 23fb2bc9ba6176c8ea238fb223d5e94c9516a38362dd1dd8afa5af00a7910b8b

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