Malicious PDF — malware analysis report

Static analysis result for SHA-256 c48ed6477177587c…

MALICIOUS

PDF

373.6 KB Created: 2015-08-28 11:31:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 2c90eddcad645d88093c7fd1bddb1b14 SHA-1: 7d8b878cc134977c33a35717f62a23bae5f9f2c7 SHA-256: c48ed6477177587ccde6943ec2a63d0759bbca5fa0f1394c6b5c744ce90d5bce
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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%81%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9+%D0%B0%D0%B3%D0%B8%D1%82%D0%B1%D1%80%D0%B8%D0%B3%D0%B0%D0%B4%D1%8B+%D0%BC%D1%8B+%D0%B2%D1%8B%D0%B1%D0%B8%D1%80%D0%B0%D0%B5%D0%BC+%D0%B6%D0%B8%D0%B7%D0%BD%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802358_kak__vosstanovit__udalennuye_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802389_skachat__yemulyator__android_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802373_windows__7__torrent_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058dec.bin
47ab0edf754240a2b2b0852dff8f96b80122fe279497d04f77c21de894a3a16c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58DEC 8364 bytes
font_01_sfnt_off0005a5f3.bin
02896c680a2feaca94f4139cd4ce1295af33484a9725d5a05ef9f2e7c0f14f47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5F3 15544 bytes

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