Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9fb701847d8989c…

MALICIOUS

PDF

351.5 KB Created: 2015-08-24 00:08:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0b0e3aa78d29ec5411f53b6779d1f451 SHA-1: d4192c05103ee0c9ec984bb42f9a1b04413af101 SHA-256: c9fb701847d8989c59c2b07cf3ffecb45e5b40b3e7a2e5d382c7f5a76c1d7f53
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure. This indicates the document is likely a lure designed to redirect users to a malicious website for phishing or malware delivery. No scripts were extracted, and the document body was truncated and unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%B0%D0%B2%D1%82%D0%BE%D0%B2%D0%BE%D0%BA%D0%B7%D0%B0%D0%BB+%D0%BF%D0%B5%D1%80%D0%BC%D1%8C+%D1%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5+%D0%B0%D0%B2%D1%82%D0%BE%D0%B1%D1%83%D1%81%D0%BE%D0%B2&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693252_skachat__artmoney__se_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693014_kak__postavit__zvuk_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693191_do__vstrechi__s_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053720.bin
6e15369015e4b269f3b452d45cc1b04b03d24a560367ef49ba1097adc5bea094		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53720 7832 bytes
font_01_sfnt_off00054df8.bin
d19e4f7b771b1d6a30c77d1b2efe0a206f86c6f2db4c3af41e4e222611cb547b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54DF8 15980 bytes

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