Malicious PDF — malware analysis report

Static analysis result for SHA-256 768d457b30b90aca…

MALICIOUS

PDF

185.9 KB Created: 2015-08-06 17:27:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2b1b9f00bc59ec55720c617e1a18ecf8 SHA-1: d7665b4c548f892ad43eef61aa7c86c5ba961215 SHA-256: 768d457b30b90acac1e21da123d1918974cdae849cffc2af6ca5af16ff2d7be2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF was flagged by a malicious redirector heuristic, indicating it contains a link to known malicious infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious redirector activity, likely serving as a lure for further malicious actions.

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%B7%D0%B0%D0%BA%D1%80%D1%8B%D1%82%D0%B0%D1%8F+%D1%88%D0%BA%D0%BE%D0%BB%D0%B0+3+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+2+%D1%81%D0%B5%D1%80%D0%B8%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305836_yandeks_bar_dlya_internet_explorer_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4308/4308841_mod_na_plaschi_v_skayrime.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305840_solo_dlya_pozvonochnika_skachat_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_off000241b4.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241B4 3556 bytes
font_01_sfnt_off00024f37.bin
e12975295d07f668003e77bca0264937e6ab2c8dc167c8b6f695445babc9e42c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F37 15064 bytes
font_02_sfnt_off00027e47.bin
5118fb92b9f79a787782d0b62042ea0825bf717a6f608f5d05cdd4f6883605d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E47 14780 bytes
font_03_sfnt_off0002a9ce.bin
be584b431827a842ea057d4620c62564795beff2552126691723bc43df7bdeee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9CE 6960 bytes
font_04_sfnt_off0002bdea.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDEA 6084 bytes
font_05_sfnt_off0002cd7f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD7F 3752 bytes

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