Malicious PDF — malware analysis report

Static analysis result for SHA-256 18cc52bc72d5fbad…

MALICIOUS

PDF

338.8 KB Created: 2015-08-27 10:26:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: ceb7c4d4f2c6fbdda25ca9b6e69a6aa1 SHA-1: dcea30b0e75f07f58ea21db3b821bf6b25d5b2f2 SHA-256: 18cc52bc72d5fbad3ced8745df25569640fada5f11897f3efc5d49fad041972c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely part of a phishing or malware distribution chain. While no scripts were extracted, the presence of a malicious link strongly suggests an intent to redirect the user to a harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%84%D0%BE%D1%80%D0%BC%D0%B0+071001+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4772/4772662_primeruy__dlya__scheta_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4771/4771978_master__klassuy__izo_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4772/4772174_notuy__linkin__park_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000507f3.bin
8476ac172fcda14f843045b894f7d9e1159ad0b7990b303233dda40e520dc076		 pdf-font-stream PDF embedded font (sfnt) at offset 0x507F3 8288 bytes
font_01_sfnt_off00051fa8.bin
79777ef366c51d559d4e543b5f3fa401ff10e7a6a079fb182406cab9a17be934		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51FA8 13800 bytes

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