Malicious PDF — malware analysis report

Static analysis result for SHA-256 74d8484c6fc05a1d…

MALICIOUS

PDF

303.1 KB Created: 2015-08-21 09:18:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: eec841eb63e79cd4c272d2388de582c6 SHA-1: 34efaf59864a76ff95507ddc5c6fa0bd0197d0a4 SHA-256: 74d8484c6fc05a1d3c63c4a2b71af970547bcb4ff778668a0eccbe510492d07a
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 the document as malicious. While no scripts were extracted, the presence of a malicious URL strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6146

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=dumper+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654707_fohisha_kizlar.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654719_patek_philippe_geneve_58152_instrukciya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654700_scenariy_otchetnogo_koncerta_vokalnogo_kollektiva.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000472d6.bin
31309cb05d4ee810f436c02c778d4ab6e848cfc378834388fa2aa9ea1906558b
pdf-font-stream PDF embedded font (sfnt) at offset 0x472D6 9316 bytes
font_01_sfnt_off00048cff.bin
b732120b6736745aefbfed16639a8a8f1e0733028d0dbf4132887948e587d59d
pdf-font-stream PDF embedded font (sfnt) at offset 0x48CFF 15840 bytes