Malicious PDF — malware analysis report

Static analysis result for SHA-256 146cb3c20e1da8e5…

MALICIOUS

PDF

185.5 KB Created: 2015-07-24 11:21:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 3124e660554a276f5d183563db5b747e SHA-1: ddd0ec681f0156249d80ad07839ff50aedd8c7c8 SHA-256: 146cb3c20e1da8e573ea2154de556a37ce553862a47fc996f6ac61292d26a906
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 a known malicious redirector. This suggests the document is designed to lure users to a malicious site, likely for phishing or malware distribution. 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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%87%D0%B8%D1%82+%D0%B4%D0%BB%D1%8F+%D0%BA%D1%81+16+%D0%B0%D0%B8%D0%BC+%D0%B2%D1%85+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188254_skachat_igru_simulyator_marshrutki_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185435_russkiy_inces_smotret_besplatno_onlayn.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191805_avtobiografiya_bendzhamina_franklina_audiokniga.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_off000242e9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242E9 3556 bytes
font_01_sfnt_off0002506c.bin
94018037a505f49dbddec5d29df58a249a34f229fa6e355658d62fbe60f68930		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2506C 14140 bytes
font_02_sfnt_off00027cd0.bin
1b7ea2b01cf4a09be71307afe7d6a1c18261fb014dd106c545821020beaf26a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CD0 14532 bytes
font_03_sfnt_off0002a7bf.bin
2ac9d63d49ff351ef810cb975413f32bb729fa94f4628d28b49ce9f9f63facd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7BF 7068 bytes
font_04_sfnt_off0002bc54.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC54 6084 bytes
font_05_sfnt_off0002cbe9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBE9 3752 bytes

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