Malicious PDF — malware analysis report

Static analysis result for SHA-256 b477a7fb6d3961ea…

MALICIOUS

PDF

366.5 KB Created: 2015-08-21 09:25:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 910e404b42714d99095ee95ecbf55805 SHA-1: 681b6da8340f9e68ba339d7c31f261f00c509fb7 SHA-256: b477a7fb6d3961eadf75eba00f8413a5988d527febcf193a2903a323f32d36d6
60 Risk Score

Malware Insights

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

The PDF file was flagged as malicious due to an embedded link pointing to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was unreadable, so the primary indicator is the malicious URL. The file was authored using wkhtmltopdf, which is sometimes used to generate malicious PDFs.

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%B8%D0%B3%D1%80%D0%B0%D1%82%D1%8C+%D0%B8%D0%BC%D0%B5%D0%BD%D0%B5%D0%BC+%D0%BA%D0%BE%D1%80%D0%BE%D0%BB%D1%8F+3+%D0%B8%D0%B3%D1%80%D0%B0%D1%82%D1%8C+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654736_skachat_sverhestestvennoe_5_sezon_torrent_ren_tv.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654842_skachat_programmu_dlya_uluchsheniya_kachestva_pesen.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654761_veronika_rot_trilogiya_divergent_vse_knigi_skachat_besplatno.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000577e4.bin
09dad6cc3b8543192377e19f6075d2a02399cfe94b73167460bf9727548334a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x577E4 8144 bytes
font_01_sfnt_off00058f70.bin
13d8b1a5ee222a2003e26c4a7a7664dbe82236aad14d677bc8a504f31840d1fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58F70 13156 bytes

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