Malicious PDF — malware analysis report

Static analysis result for SHA-256 30c629827aa35e03…

MALICIOUS

PDF

349.2 KB Created: 2015-08-28 18:59:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1d8e61529a7d6e90bd8da391169c1837 SHA-1: 9cb7d21b1fa07bb41846288e97e87e0e904bdd61 SHA-256: 30c629827aa35e0357a03b687615d6017e55bda4ab227d7703f97289c406dc6d
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document's primary purpose is to lure users to a harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D0%B6%D0%B0%D0%BB%D0%BE%D0%B1%D1%8B+%D0%BD%D0%B0+%D1%81%D1%83%D0%B4%D1%8C%D1%8E&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4810/4810601_kosuy__po__literature_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4810/4810291_ets2__lt__na_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809877_otchet__po__praktike_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052b28.bin
3c51227e061161b4f7a219050f7c6dcb7ef857090cc28a4aa8f464fc793baccc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52B28 8472 bytes
font_01_sfnt_off000543dc.bin
d6245c962dea807525ac2cdf8afb0c0901da06bedc09255c071f02740a165193		 pdf-font-stream PDF embedded font (sfnt) at offset 0x543DC 15756 bytes

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