Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c46cd2220dcafdf…

MALICIOUS

PDF

186.0 KB Created: 2015-08-08 09:42:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b76eb5073412f30c23bb3a74cbb5831f SHA-1: d09b60727c49be04e09ceb9100fc448f1cac3e35 SHA-256: 0c46cd2220dcafdf2c0145e467252f91451f7554e8e8a04203d8905a444980ef
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely part of a phishing or malware distribution chain. No scripts were extracted, but the presence of a malicious link strongly suggests an intent to redirect the user 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+3d+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383973_tayna_belogo_priyuta_klyuch.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384187_goluye_pyanuye_babuy_foto.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384216_skachat_zhestkoe_porno_cherez_torrent.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_off00024430.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24430 3556 bytes
font_01_sfnt_off000251b3.bin
a9d0e0065afc3b4dfb61d956f90b2f33bc873e019484a2f944741eb2c217d467		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251B3 14556 bytes
font_02_sfnt_off00027f7e.bin
8fcb0373def2089f4050d604114efab1fb90fd41090bcaab965e0072af246115		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F7E 14468 bytes
font_03_sfnt_off0002aa2a.bin
44a3be7c414ff9fb885e9d6b9d6e2c5e21b65f3badff0fce73724d286b53ce5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA2A 6896 bytes
font_04_sfnt_off0002be1a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE1A 6084 bytes
font_05_sfnt_off0002cdaf.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDAF 3752 bytes

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