Malicious PDF — malware analysis report

Static analysis result for SHA-256 847f78d87d8fd62e…

MALICIOUS

PDF

186.2 KB Created: 2015-07-24 12:12:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b33750c3375605fdbe4ca19cf23d44f2 SHA-1: 88616c7569fc022702eed807842d23550cfcdf49 SHA-256: 847f78d87d8fd62ead416c5fb9cbbfdc8ec6fa7ad7c076f113123c95c29f6b8e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector URL, indicating a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence for a malicious redirect.

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%8D%D0%B2%D0%B0+%D1%85%D0%B0%D0%BD%D1%81%D0%B5%D0%BD+%D1%86%D0%B2%D0%B5%D1%82+%D0%B1%D0%BE%D0%BB%D0%B8+%D1%87%D0%B5%D1%80%D0%BD%D1%8B%D0%B9+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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/5//4191/4191278_yesse_po_obschestvoznaniyu_primeruy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188257_sergeev_soldatuy_armageddona_2.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186314_alawar_crack_2015.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024369.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24369 3556 bytes
font_01_sfnt_off000250ec.bin
92e2e675db665bb9747b07accd5603d415ccd7e2662fe1ccbdaad104e9e678dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250EC 14872 bytes
font_02_sfnt_off00027f17.bin
444fff0d37e121281e80950f693c351767d7392c00fd268d43b4f6501dbf0fde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F17 14760 bytes
font_03_sfnt_off0002aaba.bin
a5929f008496c045681b214cb8eef374758aa22269e063e5e062304bb783c416		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AABA 6960 bytes
font_04_sfnt_off0002bed2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BED2 6084 bytes
font_05_sfnt_off0002ce67.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE67 3752 bytes

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