Malicious PDF — malware analysis report

Static analysis result for SHA-256 6296207cd890c8a6…

MALICIOUS

PDF

185.9 KB Created: 2015-07-25 03:01:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6080496113731226d2c8e826b1b248ef SHA-1: 21e8e573861d3f84138436ab168f15a68f0793d4 SHA-256: 6296207cd890c8a60184bcf792646d829462770a61008dee80e608221f7af49d
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 indicative of a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded link suggest an attempt to lure the user to a malicious site, likely as part of a spearphishing campaign.

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+%D0%BC%D0%BE%D0%B4%D1%8B+%D0%BE%D1%82+%D0%B4%D0%B6%D0%BE%D0%B2%D0%B0+%D0%B4%D0%BB%D1%8F+world+of+tanks+0+8+7&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196509_wildlife_park_3_rusifikator.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188928_vyazanuyy_pups_ot_marinuy_golden.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197880_skachat_v_sokraschenii_voyna_i_mir.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_off0002a5f2.bin
68192b71677abe3a5296997ead0a41ad09f225d415d699791a7acc80c2b81ddd		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A5F2 7948 bytes
font_00_sfnt_off00023f1b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F1B 3556 bytes
font_01_sfnt_off00024c9e.bin
e27605b63605216b861d4f10b5cf0761ab1471757df6a2db31eddf03e1f24c97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C9E 14660 bytes
font_02_sfnt_off00027a22.bin
cadb09c6bef3901f6944c65d71bf2eef96dbc7c8b1f307a5a9a08475f464b719		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A22 14796 bytes
font_04_sfnt_off0002bd9c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD9C 6084 bytes
font_05_sfnt_off0002cd31.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD31 3752 bytes

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