Malicious PDF — malware analysis report

Static analysis result for SHA-256 67ccb1709f5cf7ed…

MALICIOUS

PDF

184.5 KB Created: 2015-08-09 11:19:58 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 3a9cbf5a9515dc763bd4fff6c9b81be3 SHA-1: 2081cb09bf71928a654417fbd1711b52d54545f9 SHA-256: 67ccb1709f5cf7ed3491614f6e83e8fcf3211d8862d19112d6383e8931d59331
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 known malicious redirector infrastructure. This suggests the document is designed to lure users to a harmful website. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%87%D0%B8%D1%82%D1%8B+%D0%BD%D0%B0+%D1%81%D0%BA%D0%B0%D0%B9%D1%80%D0%B8%D0%BC+%D0%BD%D0%B0+%D1%8D%D0%BB%D1%8C%D1%84%D0%B8%D0%B9%D1%81%D0%BA%D0%B8%D0%B5+%D1%81%D1%82%D1%80%D0%B5%D0%BB%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4388/4388960_multfilm_svinka_pepa_vse_serii_podryad_bez_ostanovki_na_russkom.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4397/4397949_ischu_postavschikov_tekstilnoy_produkcii.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4293/4293458_anatomiya_dlya_hudozhnikov_skachat.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023fb4.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FB4 3556 bytes
font_01_sfnt_off00024d37.bin
1345d5aaa9494abe4402b421c737efac18486788a45bbedf40f1c31e5a14efaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D37 14220 bytes
font_02_sfnt_off000279f3.bin
07492e38e2bf616e1eabb99f4bd588f4074272f5f6d0524a6727adcc8f7124e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x279F3 14580 bytes
font_03_sfnt_off0002a500.bin
6b06b7de31efa6cc8165758c882482718a4c3d708dc57bc616cfd6a7c27e7582		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A500 6664 bytes
font_04_sfnt_off0002b813.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B813 6084 bytes
font_05_sfnt_off0002c7a8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7A8 3752 bytes

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