Malicious PDF — malware analysis report

Static analysis result for SHA-256 00b5e831787cb3b4…

MALICIOUS

PDF

370.1 KB Created: 2015-08-19 21:38:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-31
MD5: 0190a9ee6461194333c18243b1d41038 SHA-1: dde54f90155f158fc8527089dc4ce8e60956725d SHA-256: 00b5e831787cb3b45ef600eea74a83522a9af379d06a98b97b28c0d65921b561
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the presence of a malicious URL suggests the document is designed to lure the user to a harmful site, likely for phishing or malware delivery.

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%A2%D0%B8%D1%80%D0%B0%D0%BD%D0%B8%D1%8F+%D1%81%D0%BB%D0%BE%D0%B2+%D1%81%D1%82%D1%8E%D0%B0%D1%80%D1%82+%D1%87%D0%B5%D0%B9%D0%B7+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4630/4630698_10noya.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4628/4628884_graficheskiy_yekvalayzer_na_rabochiy_stol_animirovannuyy.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4628/4628815_skachat_klyuch_k_advanced_systemcare_ultimate.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057a34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57A34 8804 bytes
SHA-256: 1d78f954193f67c4a99a7ce9602fa2ea2b5d91d7edf32f60fc1f1b1691678db0
font_01_sfnt_off00059337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59337 17716 bytes
SHA-256: 63c190811cf956e430252f8e03597b13fe99876744d23d2fc69fd39fb5ffa8cb

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