Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c2d1b6e5ec1cfd3…

MALICIOUS

PDF

185.6 KB Created: 2015-08-05 21:26:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 7a70722e8411924c9144928b228f5604 SHA-1: 629a8dd4b1ac2534b366e675d1fcf5f275400313 SHA-256: 5c2d1b6e5ec1cfd39bd8055316b79deea15fa2d72e089c8d493fe8fcd497d2ed
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that is flagged as a malicious redirector. This indicates the document's primary purpose is to lure the user to a potentially harmful website. The ML classifier also strongly supports the malicious nature of this PDF. No scripts were extracted, but the presence of a malicious redirector 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%BC%D0%B8%D0%BB%D0%BB%D0%B8%D0%BE%D0%BD%D0%B5%D1%80+%D0%B8%D0%B3%D1%80%D0%B0%D1%82%D1%8C+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307790_skachat_mod_na_poezda_dlya_maynkraft_152.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305053_nvlddmkmsys_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305296_nyensi_dryu_bezmolvnuyy_shpion_skachat_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_off00024435.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24435 3556 bytes
font_01_sfnt_off000251b8.bin
cb2f3f0a6d541091977b85d446687e3d111cbf9060e743843fc74d37da905572		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251B8 14340 bytes
font_02_sfnt_off00027ef4.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EF4 14468 bytes
font_03_sfnt_off0002a9a7.bin
157c8416a2731e2abd953bb222e08ebb48df57abdf81fec9274e1e1ccf0d3eb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9A7 6692 bytes
font_04_sfnt_off0002bcc8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCC8 6084 bytes
font_05_sfnt_off0002cc5d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC5D 3752 bytes

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