Malicious PDF — malware analysis report

Static analysis result for SHA-256 157c2965938f2899…

MALICIOUS

PDF

349.2 KB Created: 2015-08-28 04:38:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 3cfe8ed9f6748029db25fa78a46e064b SHA-1: 3c93772948bc0bbfe1af20813410db3e6b56bf5d SHA-256: 157c2965938f2899363feb014fa7f2d5d8599dfdd6ef4613dfb404d0001914cf
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link to a known malicious redirector URL, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of the malicious URL is sufficient evidence for this assessment.

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=%D0%BA%D0%BE%D0%B4+%D0%BD%D0%B0%D0%BB%D0%BE%D0%B3%D0%BE%D0%B2%D0%BE%D0%B3%D0%BE+%D0%BE%D1%80%D0%B3%D0%B0%D0%BD%D0%B0+%D0%BF%D0%BE+%D0%BC%D0%B5%D1%81%D1%82%D1%83+%D0%B6%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D1%81%D1%82%D0%B2%D0%B0&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789973_skachat__igru__ben_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789002_adobe__photoshop__elements_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4791/4791295_programma__aygo__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052b37.bin
878c3b8afc123aad98499b0d61c7ce824c1dfcfce470fc35a1dd430095dee75f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52B37 8740 bytes
font_01_sfnt_off00054479.bin
124f646255646559854aaed7338299748353cf8ff054efa0a29f8c5e97233b69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54479 15732 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.