Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dd351b304fbaa7a…

MALICIOUS

PDF

185.1 KB Created: 2015-07-23 21:30:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: eb61c122833f1ff1203894514d58d271 SHA-1: a67d9c4cdf6fe19cff52873b039cfbc416c01199 SHA-256: 6dd351b304fbaa7a17be1321ac3308b3816b3325ede246fc017d676be58d4a08
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

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%9F%D1%80%D0%BE%D1%82%D0%BE%D0%BA%D0%BE%D0%BB+%D0%BE+%D1%81%D0%BC%D0%B5%D0%BD%D0%B5+%D0%BE%D0%BA%D0%B2%D1%8D%D0%B4+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184931_spravka_o_srednem_zarabotke_dlya_centra_zanyatosti_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184904_skachat_aktivator_windows_7_maksimalnaya_kryak.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184580_dzhon_medina_pravila_razvitiya_mozga_vashego_rebenka_skachat.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_off000240c5.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240C5 3556 bytes
font_01_sfnt_off00024e48.bin
c581798d7d682043d6e48e2dbdd4fc5175e925ce9b2299e8ee28c588c8224cd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E48 14596 bytes
font_02_sfnt_off00027c54.bin
1a803d94510109e1c0ca4497b007617bc54bc3871f99963dd6d053fab28c84d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C54 14468 bytes
font_03_sfnt_off0002a708.bin
889f4a8794fba9b573985bbd67a1ea380271de8aba9a72d0eb7267390936febe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A708 6776 bytes
font_04_sfnt_off0002ba92.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA92 6084 bytes
font_05_sfnt_off0002ca27.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA27 3752 bytes

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