Malicious PDF — malware analysis report

Static analysis result for SHA-256 0abd94538eb72379…

MALICIOUS

PDF

353.1 KB Created: 2015-08-26 20:35:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 713617f6f69c3e0410b709fcbba9a937 SHA-1: d2a5450efb2bc3f91b0b7471dabef6ad81061d36 SHA-256: 0abd94538eb723794892186123e05c5dd63c672759bc75ab28d6264ec81ad5a5
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 presence of embedded URLs and the nature of the heuristic firings suggest a malicious intent, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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%B2%D0%B2%D0%B5%D0%B4%D0%B8%D1%82%D0%B5+%D0%BA%D0%BB%D1%8E%D1%87+%D0%BF%D1%80%D0%BE%D0%B4%D1%83%D0%BA%D1%82%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%B8%D0%B3%D1%80%D1%8B+gta+4&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762832_test__domiki__orehovoy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4763/4763040_ntldr__dlya__windows_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4763/4763871_krestnuyy__otec__igra_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053cbb.bin
eae6ba7696db1ca56dc44e00b91e4df173ef4d5459612303319ff5d4466b3c07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53CBB 9736 bytes
font_01_sfnt_off000557f3.bin
861088566a7dc4990b6a3e1fec2bab086d9d12860126d660417d55d49a0de27e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x557F3 14652 bytes

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