Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6d9d28fb643f190…

MALICIOUS

PDF

366.5 KB Created: 2015-08-29 12:17:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-23
MD5: 61f2b4c7a20f6d0ba5ab2cb197a90f71 SHA-1: 2e2bcce747ef52524603b252c396cefb81329ee2 SHA-256: b6d9d28fb643f19068c5733e26824b979d6bb0bffa5412d0a4cb14a862eee17f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to known malicious redirector infrastructure, indicating an attempt to lead the user to a harmful site. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the presence of a malicious URL strongly suggests the document's purpose is to initiate a malicious redirect.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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+%D1%80%D1%83%D1%81%D0%B8%D1%84%D0%B8%D0%BA%D0%B0%D1%82%D0%BE%D1%80+%D0%B4%D0%BB%D1%8F+star+wars+-+the+old+republic&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830464_bazuy__sinonimov__dlya_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830593_zhurnal__uralskiy__sledopuyt_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4830/4830131_kak__ne__orat_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005707f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5707F 9796 bytes
SHA-256: 7ff9c78e4782ca741e2f088cc304f804caccff6c222e93b1eaaa724f4fbf940d
font_01_sfnt_off00058b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58B6C 15216 bytes
SHA-256: 0b0771f9022248e28f43f5add621cc286bba473969f241dbe8b7d5d671c44dff

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