Malicious PDF — malware analysis report

Static analysis result for SHA-256 038b8735b17fcdc5…

MALICIOUS

PDF

184.5 KB Created: 2015-07-23 20:13:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e409e6486055c960caef3aa53a72f32a SHA-1: fb0eba5e068447150747e86fa64a05569981d86f SHA-256: 038b8735b17fcdc535d8656ba6325cf2d0e08f57da678947f890642a2c345ad8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged the document with high confidence. No scripts were extracted, but the embedded URL is the primary 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=Asus+n750jv+%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80%D0%B0+windows+7&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184364_prohozhdenie_stalker_zateryannuyy_mir.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184365_mortal_kombat_vs_dc_universe_pc_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184350_yesse_po_obschestvu_primeruy.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a42a.bin
5371a3fdd450aa40c65ef50e8847a745b628e8257b9c5027df37b783b44ed391		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A42A 6928 bytes
font_00_sfnt_off00023b2f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23B2F 3556 bytes
font_01_sfnt_off000248b2.bin
5a325f990a0695749e25d5d105e23e7bd5b34018765b6b958278af7a79c93123		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248B2 15364 bytes
font_02_sfnt_off00027808.bin
c5474be252c0c063228ea2361ce63bb80e9b89b42de5d44b2b13612abc05b24a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27808 14904 bytes
font_04_sfnt_off0002b82b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B82B 6084 bytes
font_05_sfnt_off0002c7c0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7C0 3752 bytes

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