Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7a4442eb99f1bd8…

MALICIOUS

PDF

378.9 KB Created: 2015-08-29 12:13:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-07-07
MD5: 94e3861fec668917b22604469f9f4b8e SHA-1: dba4d95242ce0fa0158cc2e36137ff03e271d980 SHA-256: c7a4442eb99f1bd8187b7b2f1df5f891efe26935dffc140e4c9009e5eff7cf13
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 identified as a malicious redirector, suggesting the document's primary purpose is to lure users to a harmful site. No scripts were extracted, but the presence of a malicious link strongly indicates a phishing or malware distribution 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%B4%D0%B5%D0%BB%D0%B8%D1%87%D0%B5%D0%B2+%D0%BF%D0%B8%D1%81%D1%8C%D0%BC%D0%B0+%D0%B2%D0%B5%D1%80%D0%BD%D1%83%D1%82%D1%8C+%D0%B4%D0%B5%D0%B2%D1%83%D1%88%D0%BA%D1%83&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830173_sochinenie__o__rebenke_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830043_upravlencheskiy__uchet__za_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830373_skachat__windows__7_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a8d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A8D2 8800 bytes
SHA-256: 5489b378b2ce7ac111c72f3a0d9ece19934951dc5f227e619a86974f8c3df6f1
font_01_sfnt_off0005c16b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C16B 13404 bytes
SHA-256: e599f18b8004d5c66cc6f4bd3549610479d2850e836b316b8a40e0573be23c97

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