Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ac92c4654f1c53f…

MALICIOUS

PDF

188.8 KB Created: 2015-07-25 09:54:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9ae10f96baf4b6afc33a3ddd094ccca8 SHA-1: 4b191c09bc9e39feb42ae820524251fb8a479c50 SHA-256: 5ac92c4654f1c53ff3a6a9412433a6e33f42267bc77bed6bf68038783936f07a
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL `http://botcraftman.ru/...` is highly suspicious and likely serves as a lure for phishing or malware distribution. No scripts were extracted, but the presence of a malicious redirector strongly suggests an intent to compromise the user.

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+%D0%BA%D0%BE%D0%BD%D1%84%D0%B8%D0%B3%D1%83%D1%80%D0%B0%D1%86%D0%B8%D1%8E+1%D1%81+82+%D1%83%D0%BF%D1%80%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5+%D1%82%D0%BE%D1%80%D0%B3%D0%BE%D0%B2%D0%BB%D0%B5%D0%B9+%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//4199/4199042_zarplatnaya_vedomost_blank_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184781_baza_dannuyh_mts_2013_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184466_skachat_besplatno_vindovs_7_professionalnaya_64_bit.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_off00024e99.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E99 3556 bytes
font_01_sfnt_off00025c1c.bin
fb43d9f83f32012af48a01b7537be450822a964202acc4a11581216df8a2d859		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25C1C 14364 bytes
font_02_sfnt_off0002894a.bin
1809bbca6c8f6497a8e775cd9f95380f6747951119fd8f082aedbce3170cbc96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2894A 14468 bytes
font_03_sfnt_off0002b3fa.bin
5b82229e520928e4b3415b92ad7ae1da9da3ea964cbc23dd54db3acd6e37273c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3FA 7320 bytes
font_04_sfnt_off0002c96c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C96C 6084 bytes
font_05_sfnt_off0002d901.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D901 3752 bytes

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