Malicious PDF — malware analysis report

Static analysis result for SHA-256 1011897d645ee109…

MALICIOUS

PDF

184.5 KB Created: 2015-07-23 23:57:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 8cf26108bc13cafdd6a525cbb400bf26 SHA-1: ad952d260cdb74e1b462cdc0f337df1e7a2afc9e SHA-256: 1011897d645ee109f0188456281cb0a794406c17ac2653f3e596b20314b41e48
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This suggests the document is designed to trick the user into visiting a malicious site, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is a strong indicator 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%9C%D0%B0%D0%B9%D0%BE%D1%80%D1%81%D0%BA%D0%B8%D0%B5+%D0%BF%D0%BE%D0%B3%D0%BE%D0%BD%D1%8B+%D1%80%D0%B0%D1%81%D1%81%D1%82%D0%BE%D1%8F%D0%BD%D0%B8%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183187_lariat_iz_bisera_shema.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185890_nik_perumov_gibel_bogov_2_kniga_3_pepel_asgarda_skachat_fb2.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185468_vasha_versiya_windows_7_ne_yavlyaetsya_podlinnoy_chto_delat.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_off00023fa9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FA9 3556 bytes
font_01_sfnt_off00024d2c.bin
797b02551678f8296f28c8643dd97b7df911b026bc279e15c3ba0624d21ec08c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D2C 14772 bytes
font_02_sfnt_off00027b88.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B88 14468 bytes
font_03_sfnt_off0002a63b.bin
b1e889b0fb1e953b5d73856dc05d70c46d123834b9d9b7963e2f8e1849d60372		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A63B 6424 bytes
font_04_sfnt_off0002b859.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B859 6084 bytes
font_05_sfnt_off0002c7ee.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7EE 3752 bytes

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