Malicious PDF — malware analysis report

Static analysis result for SHA-256 271968a4cb99dd91…

MALICIOUS

PDF

366.4 KB Created: 2015-08-29 12:40:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-07-10
MD5: d2d764969e7ed46a4f71f5ec9c514db8 SHA-1: c3f2366af4598ea055d03f65d983ad86efdd4654 SHA-256: 271968a4cb99dd917b1492cd2d44d009e55bfa17f649ea4270fc4c21133a472d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a malicious site. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the presence of a malicious URL strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9915

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B3%D0%B5%D0%BD%D0%B5%D1%80%D0%B0%D1%82%D0%BE%D1%80+%D0%BA%D0%BB%D1%8E%D1%87%D0%B5%D0%B9+%D0%B4%D0%BB%D1%8F+adobe+photoshop+cs5&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4831/4831858_skachat__aktivator__dlya_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4831/4831122_skachat__fl__studio_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4829/4829940_luchshie__videoredaktoruy__na_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005724b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5724B 9228 bytes
SHA-256: 20c65747c04813db2e2e31eaee586a1c6bac0648d0ce4fbf751a88aaf172cafe
font_01_sfnt_off00058b1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58B1C 15424 bytes
SHA-256: 96a56dc01f355b8735d097db5edbf701cd56464d1126ab56e1e67d9ea2cbea6f

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