Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cccc46841dee04d…

MALICIOUS

PDF

369.8 KB Created: 2015-08-26 09:48:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 508c41074e15924bd47fc155c18518c0 SHA-1: 257b7f7523cc85a94a0588268a463794752b99a5 SHA-256: 7cccc46841dee04ded81674b914f42cad4f84314f3e12f662216927f188c7ac1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a malicious redirector link pointing to botcraftman.ru. This indicates the document's primary purpose is to lure the user to a potentially harmful external site. 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 0.9975

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=sims+city+2015+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751990_programmator__na_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751644_madzhong__pokemonuy__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751958_zapiski__volshebnika__zakoldovannuyy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058183.bin
fb26d992c42a36a13b0bc3a459e89fd2aa52f063640f339358b933d802072cb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58183 9192 bytes
font_01_sfnt_off00059b48.bin
eca91845325e535c9e122a7521aabef3fdf3e0bc1e07547b9b16d3cca3914c83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59B48 14516 bytes

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