Malicious PDF — malware analysis report

Static analysis result for SHA-256 793e858ddf69a899…

MALICIOUS

PDF

185.6 KB Created: 2015-08-08 11:35:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2deb87259385ab5d3b8be72b2540dea7 SHA-1: d2f0467fcb5353975e3f4b3272546a79e9f2ec5c SHA-256: 793e858ddf69a8999ea4a62dee891daab5a888d3320112bdc6166786267e7bbc
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific 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=%D0%9B%D0%B8%D1%86%D0%B5%D0%BD%D0%B7%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B9+%D0%BA%D0%BB%D1%8E%D1%87+%D0%B4%D0%BB%D1%8F+%D0%B8%D0%B3%D1%80%D1%8B+%D0%BF%D0%BE%D0%BB%D0%B5+%D1%87%D1%83%D0%B4%D0%B5%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385686_darrell_moya_semya_i_zveri_kratkoe_soderzhanie.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387437_programma_dlya_ochistki_sistemuy_windows_7.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383859_programma_dlya_zapisi_ryepa.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_off00024335.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24335 3556 bytes
font_01_sfnt_off000250b8.bin
4c8067c38b3cdc5347f6b7e94ee8ff47a97cd26b4f299c57035cece16fa0eb05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250B8 14368 bytes
font_02_sfnt_off00027e15.bin
e68f81527f1cd5a6307854472862c4c4219a83f5c07265ef16b2cd24c96f1be3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E15 14468 bytes
font_03_sfnt_off0002a8c6.bin
42899b41dbe0899db655cc2b905247ed00caf1736500638e9029bae24fb8d096		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8C6 6864 bytes
font_04_sfnt_off0002bc7b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC7B 6084 bytes
font_05_sfnt_off0002cc10.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC10 3752 bytes

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