Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e3679efeda13393…

MALICIOUS

PDF

186.0 KB Created: 2015-08-08 12:24:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2df300966cdcf40a4b4d3d1969997fa5 SHA-1: cc0675449625cad03f32ee683dfa86fddb1e0793 SHA-256: 9e3679efeda13393aeaa62e999342c15a32a659943746f45eaeaa8813eeaf3c1
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector, http://botcraftman.ru/. This suggests the document is designed to lure users to a malicious website. No scripts were extracted from this sample, and the document body was truncated, limiting further analysis of the exact 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%82%D0%B5%D0%BA%D1%81%D1%82+%D0%BF%D0%B5%D1%81%D0%BD%D0%B8+%D1%8E+%D1%8D%D0%BD%D0%B4+%D0%B0%D0%B9&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384497_lg_smart_tv.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385015_fayloobmennik_besplatnuyy_ifolder.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384726_oleg_roy_ekaterina_nevolina_romeo_stoit_umeret_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000244bf.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x244BF 3556 bytes
font_01_sfnt_off00025242.bin
af332228c7c7337ef6730d0e215a5a8c54619b20c42ad39bf695f0ff3caeb929		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25242 15464 bytes
font_02_sfnt_off00028229.bin
efe89c2413adcdba86858cd34de665530841c2494fcb77ac7df3166d4c2303c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28229 14468 bytes
font_03_sfnt_off0002acda.bin
b3723112656b916bd04afe3fbe2b3f0c3c9c3063dd9bfe99110e46aeaffda709		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACDA 6232 bytes
font_04_sfnt_off0002be43.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE43 6084 bytes
font_05_sfnt_off0002cdd8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDD8 3752 bytes

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