Malicious PDF — malware analysis report

Static analysis result for SHA-256 f511dab0dd564ff1…

MALICIOUS

PDF

183.9 KB Created: 2015-08-05 15:13:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d76351cc11953c65adc43ed2ba181262 SHA-1: 585034a502be2c8f7570174a7982681a50b5475b SHA-256: f511dab0dd564ff1395d174cb607ce9fe7e74a3b5bca9aaa967472bb9a1003ad
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to botcraftman.ru. This suggests the document's primary purpose is to lure the user to a potentially harmful website. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample, limiting further analysis of its behavior.

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=%D0%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+gta+san+andreas+electric+city&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305499_raspisanie_avtobusov_na_tuapse.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305683_4_klass_vuypusknoy_scenariy.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304811_programma_dlya_vkontakte_offlayn.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a19e.bin
df33e97a3bf0dd1f07b24cbfc376b48a3f01497ef30215912bfdbed5bc0669b7		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A19E 6932 bytes
font_00_sfnt_off00023c29.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C29 3556 bytes
font_01_sfnt_off000249ac.bin
7dcfa5373a698b7b0ad0771dadf0d9b7d6d93c2a884f4daa999cc99db4647c54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249AC 14424 bytes
font_02_sfnt_off00027691.bin
dc7b277a703aa5dd28e4373ba1c4c9c1cca11a6530205de71a3caa72a30c2ef5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27691 14576 bytes
font_04_sfnt_off0002b5b7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B5B7 6084 bytes
font_05_sfnt_off0002c54c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C54C 3752 bytes

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