Malicious PDF — malware analysis report

Static analysis result for SHA-256 67db61f49ffafb3b…

MALICIOUS

PDF

183.8 KB Created: 2015-08-05 16:42:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 98a942535a209b88cd244955122ce619 SHA-1: 03078edf9faf9c27e2d26c3fc6b7b4af81edd676 SHA-256: 67db61f49ffafb3b7d1a844f316e44ecf6ed018ccc63dac4a0113121739ec044
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. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, but the presence of a malicious URL is a strong 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+banished+rus&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305538_framaroot_skachat_dlya_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305952_skachat_mozilla_firefox.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305391_otchet_revizionnoy_komissii_snt.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_off0002a254.bin
3affc076f08478c5585ee369f609f5bcaa6c5ae19c82594c3e28121eb1729bfe		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A254 6684 bytes
font_00_sfnt_off00023b05.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23B05 3556 bytes
font_01_sfnt_off00024888.bin
b0c59c863dddaf901f5e8a633fc7c302237bc57c9cd14f8029eed791e211e033		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24888 15124 bytes
font_02_sfnt_off00027724.bin
6ada6435a9bef5e95650bd83ec0f96338eff609f21ad5f7c5473e5e479ec1b4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27724 14700 bytes
font_04_sfnt_off0002b574.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B574 6084 bytes
font_05_sfnt_off0002c509.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C509 3752 bytes

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