Malicious PDF — malware analysis report

Static analysis result for SHA-256 be494c0fc406ba58…

MALICIOUS

PDF

187.0 KB Created: 2015-08-05 13:57:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 15fbe999e467220ec7d13dc9dafc1e15 SHA-1: b320a40756ff2ec9733f1d848faf1f871f263930 SHA-256: be494c0fc406ba5849f7d38d2268df006d567af908fdbb01475006f9e008b12d
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 infrastructure at botcraftman.ru. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body contained only technical metadata.

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%8D%D0%BA%D0%B7%D0%B0%D0%BC%D0%B5%D0%BD%D0%B0%D1%86%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B5+%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D1%8B+%D0%BF%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC%D1%83+%D1%8F%D0%B7%D1%8B%D0%BA%D1%83+9+%D0%BA%D0%BB%D0%B0%D1%81%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304466_bashenki_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304731_programma_dlya_vuyhoda_iz_grupp_vkontakte.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304630_dreamfall_chapters_book_one_reborn_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000245a4.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x245A4 3556 bytes
font_01_sfnt_off00025327.bin
98fda32fa242006f48698f88e700748126e38a3e3081bd582ce471688c0b0b8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25327 15288 bytes
font_02_sfnt_off00028266.bin
f1090cfc89041f12b90f1938efddc514253338364aaac711044b9a45315783bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28266 14692 bytes
font_03_sfnt_off0002adc9.bin
e7542da52af55c0146108a22d4ab1ec2c7225012c52c36d116731be2f8184937		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADC9 7040 bytes
font_04_sfnt_off0002c24b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C24B 6084 bytes
font_05_sfnt_off0002d1e0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1E0 3752 bytes

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