Malicious PDF — malware analysis report

Static analysis result for SHA-256 e416587c58f43470…

MALICIOUS

PDF

348.9 KB Created: 2015-08-24 03:22:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-27
MD5: c02712c954475d7a8441a9aa00c08e4f SHA-1: dce317a6a2777d4a136f29526b7e519ead36f935 SHA-256: e416587c58f43470d8895a151efb6dbb3186026b7ca39c8ea88145edfadae7e1
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 lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. Although no scripts were extracted, the presence of a malicious URL is a strong indicator of malicious intent, likely to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=one+direction+midnight+memories+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4697/4697552_skachat__chit__vh_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4697/4697131_bratstvo__chernogo__kinzhala_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4697/4697572_windows__8__skachat_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005248a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5248A 10424 bytes
SHA-256: b8c66658fd69d3290fb852f71acabf301e6766e6dd479638bd567180c5672b7a
font_01_sfnt_off00054264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54264 16208 bytes
SHA-256: bf17e71a88247b4e103715c34fcb7b0b8d307632bfa8dcdcd633054c8639fe93

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