Malicious PDF — malware analysis report

Static analysis result for SHA-256 43206a01bccd9ab0…

MALICIOUS

PDF

185.5 KB Created: 2015-08-08 13:03:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 3920aef1d499d39727d02c96210486c4 SHA-1: 734e9279bf8f7bde5a2533c00f75deb5e0136b2c SHA-256: 43206a01bccd9ab0640ca7e9805ccc9378d7a020b4cf9cfcd7175149126da260
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely part of a phishing or malware distribution chain. No scripts were extracted, and the document body was truncated, limiting further analysis of the immediate user-facing content.

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=far+cry+4+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+pc+rus+repack+%D0%BC%D0%B5%D1%85%D0%B0%D0%BD%D0%B8%D0%BA%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387826_amplitube_39_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4391/4391849_emergency_3_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4391/4391099_ku_kindzadza_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a734.bin
061419e7f81dc38ec1d0389f301b16f1342869d24299063ac9000b63d44f5dec		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A734 7236 bytes
font_00_sfnt_off00023fa0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FA0 3556 bytes
font_01_sfnt_off00024d23.bin
83f8b6109959acd676d8e3e6e7aace8d2875997491cc42c3e7778302b1e614ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D23 15172 bytes
font_02_sfnt_off00027c19.bin
6c417cff389db6ec49f6ce7a627c2ff4ab07067a2d9031b932914d234be5165f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C19 14584 bytes
font_04_sfnt_off0002bc56.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC56 6084 bytes
font_05_sfnt_off0002cbeb.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBEB 3752 bytes

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