Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0fd9742705590e4…

MALICIOUS

PDF

186.3 KB Created: 2015-08-05 13:25:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 389088b432f60b12bb435cb30304c1fe SHA-1: b8652ff100060f971309e54cc5568b2017e95934 SHA-256: a0fd9742705590e475d250d1c6caacd498a39a0072d6c8b99c371eca0e2d31f7
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5+%D0%B0%D0%B2%D1%82%D0%BE%D0%B1%D1%83%D1%81%D0%BE%D0%B2+%D1%81%D0%B0%D1%80%D0%B0%D1%82%D0%BE%D0%B2-%D0%B1%D0%B0%D0%B7%D0%B0%D1%80%D0%BD%D1%8B%D0%B9+%D0%BA%D0%B0%D1%80%D0%B0%D0%B1%D1%83%D0%BB%D0%B0%D0%BA&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304477_microsoft_office_2007_skachat_besplatno_dlya_windows_7_32_bit.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304507_programma_dostupnoe_zhile_moloduym_semyam.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304488_microsoft_office_portable.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002452c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2452C 3556 bytes
font_01_sfnt_off000252af.bin
c68184ce4d650a8b6ab6101566c52875669aa913677a9248cef7ef2d96e2a7b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252AF 14956 bytes
font_02_sfnt_off000280f8.bin
25c6e01570ccaff1d4a42c9e9cdfd09f1d8419efdfec7b1260b18abfcc753208		 pdf-font-stream PDF embedded font (sfnt) at offset 0x280F8 14468 bytes
font_03_sfnt_off0002abad.bin
e8e38412100894e0a82caeb22b2f609568a139d0a0833a4b7adae686877d4017		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABAD 6884 bytes
font_04_sfnt_off0002bf92.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF92 6084 bytes
font_05_sfnt_off0002cf27.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF27 3752 bytes

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