Malicious PDF — malware analysis report

Static analysis result for SHA-256 830013c52d01d4e8…

MALICIOUS

PDF

358.5 KB Created: 2015-08-28 00:30:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 642768163c95692bd7e409fc90693cc6 SHA-1: 328543b54ab069fec683aa234a731f135dc8efb5 SHA-256: 830013c52d01d4e8d29f5f4171b30e1c4c897bad9b82e3b3e5ad230e44379fa0
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. While no scripts were explicitly extracted, the nature of the embedded link suggests a phishing or redirection attempt, likely initiated via spearphishing attachment.

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=%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%B0+%D1%81+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%BE%D0%B9+victoria+446b&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4787/4787878_filmi__na__telefon_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788329_tematicheskoe__planirovanie__po_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788795_skachat__besplatno__fayl_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005541d.bin
160f6778d6d6a30882910d040e08652e0b116c641c6a46d0c1f64e78d00d7499		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5541D 8532 bytes
font_01_sfnt_off00056bc4.bin
e586ca5ac07be152718273afb0a693467c6b33f4f1c61cf34ad4b619de13734f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56BC4 15088 bytes

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