Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f49573d836a5a85…

MALICIOUS

PDF

385.3 KB Created: 2015-08-19 16:06:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 727e1405e4e4a42a46e4d0060fb42c67 SHA-1: 25a20a26abd0cd18f9b4db038120bbddba662c56 SHA-256: 7f49573d836a5a8581680d3d769583d689c06cab6f12ae660e5c4fb64e8ffc0a
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 website, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9910

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%B6%D1%83%D0%BA%D0%BE%D0%B2%D1%81%D0%BA%D0%B8%D0%B9+%D0%BA%D0%B0%D0%BA+%D0%BC%D1%8B%D1%88%D0%B8+%D0%BA%D0%BE%D1%82%D0%B0+%D1%85%D0%BE%D1%80%D0%BE%D0%BD%D0%B8%D0%BB%D0%B8+%D1%82%D0%B5%D0%BA%D1%81%D1%82+%D1%87%D0%B8%D1%82%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627025_vk_prilozhenie_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626539_gde_vzyat_kod_produkta_na_origin_fifa_15.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626728_nyensi_dryu_prizrak_usadbuy_tornton_skachat_torrent_na_russkom.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b36f.bin
bd6d514879d7db7aa49283b121f8163fc5351d90032f893523494ec97159fadf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B36F 10744 bytes
font_01_sfnt_off0005d1c5.bin
bd80e21a717c15c6231df67b9bff74f99dbf9ca19a9c5b7a5b5d3a8e8b7f267e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D1C5 16780 bytes

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