Malicious PDF — malware analysis report

Static analysis result for SHA-256 720ed68e7272ee87…

MALICIOUS

PDF

187.0 KB Created: 2015-07-30 07:25:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 094f8b629ee5d0b25704361e2ca27e5a SHA-1: 7dfedf4881ed36e7e98a0d6d45bfa62567564190 SHA-256: 720ed68e7272ee871a4e0edf8d858e41718be8e7d394a64aa226d1360d810aaf
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The presence of this URL suggests the document is designed to lure users to a potentially harmful site, likely for phishing or malware delivery. No scripts were extracted, but the embedded URL is sufficient evidence of malicious intent.

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%91%D0%BE%D0%BB%D1%8C%D1%88%D0%B8%D0%B5+%D1%86%D0%B8%D1%84%D1%80%D1%8B+%D0%B4%D0%BB%D1%8F+%D1%80%D0%B0%D1%81%D0%BF%D0%B5%D1%87%D0%B0%D1%82%D0%BA%D0%B8+%D0%BD%D0%B0+%D0%BF%D1%80%D0%B8%D0%BD%D1%82%D0%B5%D1%80%D0%B5+%D0%BE%D1%82+1+%D0%B4%D0%BE+10&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4228/4228280_slovarnuye_slova_2_klass_ramzaeva_s_propuskami_bukv_kartochki.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4221/4221515_skachat_spektator_dlya_tankov_onlayn.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4226/4226020_skachat_detskie_klipuy_bebi_taym_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_off00024848.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24848 3556 bytes
font_01_sfnt_off000255cb.bin
5bcd755208775f24059e96ef80e28b290e824837884e4f95af0dfea6fbe9eafb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x255CB 14212 bytes
font_02_sfnt_off000282b3.bin
f39b187e096c54b81e84cf7e262d0d5570d6c56d8fdb3d4d99bbd720aeaeba36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x282B3 14520 bytes
font_03_sfnt_off0002ad8c.bin
5ebc95b95ce94d39c7cf123efb4d12c9a004d7b24c00972dcc7daff64e6bf4f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD8C 7076 bytes
font_04_sfnt_off0002c207.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C207 6084 bytes
font_05_sfnt_off0002d19c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D19C 3752 bytes

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