Malicious PDF — malware analysis report

Static analysis result for SHA-256 3619cf1605d474d8…

MALICIOUS

PDF

185.5 KB Created: 2015-07-23 19:37:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ae5b714f24728488a7b9a0dbef94b72f SHA-1: a38fd5b28bfcc9f0aa94a0f278834e55fcdecd51 SHA-256: 3619cf1605d474d89b6e5c81238423f22dca2b372ca786a33bddbc0d8c6d1cca
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL http://botcraftman.ru/... is highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact lure.

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%81%D1%85%D0%B5%D0%BC%D1%8B+%D0%B2%D1%8B%D1%88%D0%B8%D0%B2%D0%BE%D0%BA+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183174_kursovoy_proekt_po_arhitekture_mnogoyetazhnuyy_zhiloy_dom.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183260_shema_ponizhayuschego_transformatora.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183244_proekt_dachnogo_domika.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024351.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24351 3556 bytes
font_01_sfnt_off000250d4.bin
b3207faf9cb35d1c85f6a83694587630b8743ee792b4d0619721f0290003149a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250D4 14208 bytes
font_02_sfnt_off00027d86.bin
6b4fe88cc06c6695e814bda583852903ca01c71ccd34a42f1030d6e16d0f4c10		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D86 14588 bytes
font_03_sfnt_off0002a898.bin
74fa07b5289cd3c0bf11a3fb8f3563ab73836bcc6abea0bf3c671c7276374523		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A898 6860 bytes
font_04_sfnt_off0002bc5b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC5B 6084 bytes
font_05_sfnt_off0002cbf0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBF0 3752 bytes

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