Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e99e53bd5291f61…

MALICIOUS

PDF

365.5 KB Created: 2015-08-20 09:23:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: db6454f5c2c35f149e9c9c9d0f9e3e39 SHA-1: fd0c5b2fae4c5a40430b306e367981f232354763 SHA-256: 9e99e53bd5291f61e40f7d84f6f6015fb8cb802f3208871fa895d768d3c68ca7
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a harmful external site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9959

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%BA%D0%B0%D0%BA+%D1%83%D0%B7%D0%BD%D0%B0%D1%82%D1%8C+%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B+%D0%B5%D0%B3%D1%8D+%D0%BF%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC%D1%83+2015&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4640/4640439_wifi_analyzer_skachat_dlya_windows_7.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4640/4640363_regulyator_oborotov_yelektrodvigatelya_12v.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639762_viber_dlya_nokia_c601_skachat_besplatno.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000568e3.bin
d3bcaad81bbfc882fafb0aaf413433e4249b5a2913acf8b4635b28cc49f21667		 pdf-font-stream PDF embedded font (sfnt) at offset 0x568E3 8936 bytes
font_01_sfnt_off000582d0.bin
d06c2ed6d9f60f1c02427ed5b195a6bf9877f7fc8d4aede9141aca1d6482a567		 pdf-font-stream PDF embedded font (sfnt) at offset 0x582D0 16848 bytes

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