Malicious PDF — malware analysis report

Static analysis result for SHA-256 81b16cc1269bd3d4…

MALICIOUS

PDF

187.0 KB Created: 2015-07-23 21:28:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 11c256c7f210b2d6a06b55bb07d3c3fa SHA-1: de66cfd648541c4b468c653861bf1f33ce87f7d5 SHA-256: 81b16cc1269bd3d456fa89b569e3d681be1f055cee877beb93de76a5a72a84d5
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, botcraftman.ru, which is disguised as a download link for Sony Vegas Pro. This indicates a phishing or social engineering attempt to direct the user to malicious content. No scripts were extracted, and the document body was not sufficiently readable to provide further context.

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+sony+vegas+pro+12+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B0%D1%8F+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8F+c+%D0%BA%D0%BB%D1%8E%D1%87%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184418_novaya_forma_mchs_dlya_fotoshopa.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184308_shemuy_vuyshivok_besplatno_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183243_urok_3.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002aa57.bin
80b1cb9e5259616a0792873b42d0d7428dae0503099538b6a1b331d81287bfcc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AA57 8056 bytes
font_00_sfnt_off00024406.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24406 3556 bytes
font_01_sfnt_off00025189.bin
c35fc312153b04d4fe7633f8537246f7587c6f5e576d207f7dd339bcafcb7e54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25189 14920 bytes
font_02_sfnt_off00027f7a.bin
2d539f27ecfcd8dcb5d1ca224256ceff18ad0b98f684a23ee1c1a964a23ecaec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F7A 14516 bytes
font_04_sfnt_off0002c242.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C242 6084 bytes
font_05_sfnt_off0002d1d7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1D7 3752 bytes

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