Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a82e831353718ab…

MALICIOUS

PDF

186.8 KB Created: 2015-07-26 17:09:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2d5e7772541732bdf24ce4e2ff091266 SHA-1: b11de3db7869eb796b96746408234e5e281568ea SHA-256: 5a82e831353718aba4aebde232486c54f7dff2897d5d34a9501cb96ba60694bb
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that is flagged as a known malicious redirector. The ML classifier also strongly indicates maliciousness. The primary attack pattern involves luring the user to the malicious domain, likely to deliver a second-stage payload or conduct a phishing operation. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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%BF%D1%80%D0%BE%D1%88%D0%B8%D0%B2%D0%BA%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%BF%D0%BB%D0%B0%D0%BD%D1%88%D0%B5%D1%82%D0%B0+prestigio+multipad&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4218/4218192_kryak_dlya_gta_4_aktivacii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200805_photoshop_cc_2015_mac_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4205/4205453_sanitaruy_podzemeliy_2_klyuch.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_off0002aa4c.bin
679768933f145e8f606aa94399dab6db99a0e222d8c9eaa274b709583ebb658a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AA4C 7792 bytes
font_00_sfnt_off00024450.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24450 3556 bytes
font_01_sfnt_off000251d3.bin
7dc40f88ad7b125f94fad75f74252d18463782cb3082935442a4cce98d3e122f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251D3 14596 bytes
font_02_sfnt_off00027ea3.bin
421746f8156eac28e021bd5b5e1bbd2cc34897604bc05c211a592355a58ea210		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EA3 14800 bytes
font_04_sfnt_off0002c134.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C134 6084 bytes
font_05_sfnt_off0002d0c9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0C9 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.