Malicious PDF — malware analysis report

Static analysis result for SHA-256 13e4a51536bd9183…

MALICIOUS

PDF

183.4 KB Created: 2015-08-05 13:42:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4573682720b9b39871da103541c8b01f SHA-1: 9fe1adc1508cde58aa0db5a6b26ce5820113c516 SHA-256: 13e4a51536bd91835e09e7fc034a98680f144e47ddd95e175d7ffd633fd64c94
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The embedded URL `http://botcraftman.ru/...` is the primary indicator of malicious intent. While no scripts were extracted, the presence of this malicious link suggests the document's purpose is to redirect users to a harmful site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%BF%D1%80%D0%BE%D1%88%D0%B8%D0%B2%D0%BA%D0%B0+lg+p705&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304453_provoduy_na_pensiyu_muzhchinuy_scenariy.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304600_skachat_diablo_2_underworld_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304565_yelektrooborudovanie_avtomobiley_uchebnik_dlya_vuzov.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023992.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23992 3556 bytes
font_01_sfnt_off00024715.bin
fd19badfc2878c1985f70f534157f19745920188bf14884c27bc157e013de1ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24715 15088 bytes
font_02_sfnt_off000275e1.bin
08fd7201e02cd949dae74ff4792f77132830626c07a11f2b9e03c55abd5b74bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x275E1 14744 bytes
font_03_sfnt_off0002a16a.bin
e5658cbfa902b05ee3e082dd2d9d337c144a0d711b0d3c7deafd4a2b112a39a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A16A 6516 bytes
font_04_sfnt_off0002b3e1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3E1 6084 bytes
font_05_sfnt_off0002c376.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C376 3752 bytes

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