Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f6c303ffec480c4…

MALICIOUS

PDF

185.0 KB Created: 2015-07-24 12:51:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e31be3e4ec33e6309e306ee5483271b1 SHA-1: 7e8d9fa0fc3ca5b4660c0b99a4a2ed63798007bc SHA-256: 0f6c303ffec480c4e45f0dfd5e3c8deadd346e8ae64e737a0673340f36e7f683
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics, including a critical alert for linking to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is identified as malicious. This suggests the document's primary purpose is to redirect the user to a compromised site, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7493652-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7493652-0
  • 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=1%D1%81+%D0%B1%D1%83%D1%85%D0%B3%D0%B0%D0%BB%D1%82%D0%B5%D1%80%D0%B8%D1%8F+30+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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//4187/4187214_prilozhenie_poobschaemsya_v_odnoklassnikah.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191937_oem_klyuchi_windows_7.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189691_skachat_kontra_strayk_17_russkaya_versiya_s_botami_besplatno.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_off00024137.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24137 3556 bytes
font_01_sfnt_off00024eba.bin
2870802a505eb5db8f73017f46d245e08f97c19f2e16ddad8b76c0f2dd430746		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24EBA 14140 bytes
font_02_sfnt_off00027b47.bin
cefea9c1e2d0dca3a634f890a749e3f0605efc132b882de88cd158d917ba0276		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B47 14532 bytes
font_03_sfnt_off0002a633.bin
af8b31d954f9416b900bf93aa17e3de982cb1d4e32178f7e4800d19a30bda64c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A633 6920 bytes
font_04_sfnt_off0002ba4b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA4B 6084 bytes
font_05_sfnt_off0002c9e0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9E0 3752 bytes

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