Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdad305d49b8d942…

MALICIOUS

PDF

368.0 KB Created: 2015-08-28 19:04:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2350dad673013a19e4e876e45121a897 SHA-1: 4ecaf916167c38c6b2e5d26476d87f3bee9963a0 SHA-256: fdad305d49b8d942934ec3b3ba94ab79a976072c18ae1f555ed33bc8659cc977
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains an embedded link that redirects to a known malicious domain, indicating a phishing or malware distribution attempt. The ML classifier also strongly flagged this file as malicious. No scripts were extracted, but the presence of a malicious redirector link is sufficient evidence for this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

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%BF%D0%B5%D1%80%D0%B5%D1%85%D0%BE%D0%B4%D1%8B+%D0%B4%D0%BB%D1%8F+proshow+producer+%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
    • http://img0.liveinternet.ru/images/attach/c/7//4810/4810004_nero__startsmart__6_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4810/4810853_splinter__cell__1_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4810/4810051_kak__sozdat__papku_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000573e2.bin
717bd3323019e522d029c03a66a5cfcbccd97066ee6b2518eae1a832d925d959		 pdf-font-stream PDF embedded font (sfnt) at offset 0x573E2 9080 bytes
font_01_sfnt_off00058cde.bin
a8d0b1ba963edf833b42099d48366eaf4a74516ddf3996c73188c21379397e0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58CDE 17096 bytes

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