Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b6ab4bcc349c147…

MALICIOUS

PDF

378.0 KB Created: 2015-08-25 15:15:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-25
MD5: 1becd03bc2f649678390a724ade71f07 SHA-1: ce60ebe69f0a9a3e15ab58c860b7d1130fa0c89d SHA-256: 4b6ab4bcc349c1476a14364594472cfba5798b86d2cae5c28f7287142f2c3ec4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is confirmed as malicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of a malicious URL strongly suggests a phishing or credential harvesting attempt.

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%BA%D0%BE%D0%BD%D1%81%D0%BF%D0%B5%D0%BA%D1%82%D1%8B+%D0%B7%D0%B0%D0%BD%D1%8F%D1%82%D0%B8%D0%B9+%D0%B1%D0%BE%D0%BD%D0%B4%D0%B0%D1%80%D0%B5%D0%BD%D0%BA%D0%BE+%D1%81%D1%80%D0%B5%D0%B4%D0%BD%D1%8F%D1%8F+%D0%B3%D1%80%D1%83%D0%BF%D0%BF%D0%B0&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731368_skachat__java__7_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731556_praktika__sap__rukovodstvo_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4731/4731601_dolzhnostnaya__instrukciya__inzhener_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00059b34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59B34 9504 bytes
SHA-256: 069f40bad5444c927135e020f9dfe239a628b4bba6f93fbfbed5a7314850fe4c
font_01_sfnt_off0005b50b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B50B 17004 bytes
SHA-256: 4ec24a1f782c390bcddbccc1a146f83b4849d66bcdb13ac26ce5b0a5447e87bf

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