Malicious PDF — malware analysis report

Static analysis result for SHA-256 02f4ec6475bbc3f7…

MALICIOUS

PDF

186.3 KB Created: 2015-08-08 09:55:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 840b8d9cdbc4cdd91d913074c611aa64 SHA-1: c370c31f96776eacc50c9f49c59f1d91c337c3da SHA-256: 02f4ec6475bbc3f7ecc9b5fd573154a628f76e6bb9d4a4df001a4ff3cdbfe58f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is likely intended to lure the user into downloading malware or visiting a phishing site. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of a malicious URL is sufficient evidence of a phishing or malware distribution attempt.

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=sims+3+gold+edition+2015+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384190_tekst_pesni_naguyz_mahabbat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384264_portfolio_fizinstruktora_v_detskom_sadu.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384194_shilak_video_uroki_na_russkom.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_off0002a8c3.bin
7b251b47f8009cc569244ac304f5f5eee0cc527699b2578197bbfc96d9d7474e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A8C3 7712 bytes
font_00_sfnt_off00024109.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24109 3556 bytes
font_01_sfnt_off00024e8c.bin
d779668b99ae644e328a3e32f545b1f16744529640ca94559c16aa6182dafd6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E8C 14484 bytes
font_02_sfnt_off00027c1a.bin
d2d3acd3dd591c6df42958ada2821d83b76c64ca7f4403839dc1799b2ba9fa18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C1A 15136 bytes
font_04_sfnt_off0002bf86.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF86 6084 bytes
font_05_sfnt_off0002cf1b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF1B 3752 bytes

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