Malicious PDF — malware analysis report

Static analysis result for SHA-256 a909a4f584fa968f…

MALICIOUS

PDF

185.9 KB Created: 2015-07-25 12:37:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 09e0466572b219da9d3dd492bed9c7e6 SHA-1: 2ffb2625dd153048ef498b70cf8db400af85db2b SHA-256: a909a4f584fa968ff4a8ba4f98b54d421a4f6497547c42c1e8eabd257994b51c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious redirectors. This suggests the document is designed to lure users to a harmful site.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%B8%D0%BC%D1%81+4+deluxe+edition+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4203/4203321_06iyul.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192985_iso2god_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191641_shkola_doktora_komarovskogo_vse_vuypuski_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000240b4.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240B4 3556 bytes
font_01_sfnt_off00024e37.bin
f0a91f46d6073166df1d537fe746a62e705af725c02bf7e5a87cf4ab7bb2ca30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E37 15068 bytes
font_02_sfnt_off00027d48.bin
36d0a97cea938d1353d91e43790535dacd04234a2f6c3f0d7f31942df1a9fef7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D48 14644 bytes
font_03_sfnt_off0002a897.bin
9d9dbe9ab1721b9e84cb956bc8251c92542d46642848166138ef77a8646b27a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A897 7252 bytes
font_04_sfnt_off0002bdd8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDD8 6084 bytes
font_05_sfnt_off0002cd6d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD6D 3752 bytes

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