Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb48566287cb37aa…

MALICIOUS

PDF

358.2 KB Created: 2015-08-19 12:10:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 1ba62db44a5ff998ade1b31fcb09600b SHA-1: fc42ed60fa5bd770e824fa9bf6a221acf52b96da SHA-256: cb48566287cb37aae84c92a6115288b2ba6d3c0d04aae61e58f5cc8abe6594ec
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 at http://botcraftman.ru/. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was heavily truncated and unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%A2%D0%B0%D0%B9%D0%BD%D0%B0+%D0%BF%D1%80%D0%BE%D0%BA%D0%BB%D1%8F%D1%82%D0%BE%D0%B3%D0%BE+%D0%B3%D0%B5%D1%80%D1%86%D0%BE%D0%B3%D0%B0+%D0%B5%D0%BB%D0%B5%D0%BD%D0%B0+%D0%B7%D0%B2%D0%B5%D0%B7%D0%B4%D0%BD%D0%B0%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626476_skayp_skachat_besplatno_na_russkom_yazuyke_novaya_versiya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496724_skachat_videopad_video_editor_241_rusifikator.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626465_licenzionnuyy_klyuch_dlya_reimage.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054d55.bin
953d73c63b3c22b94c337c1a11b8ce26a45cb8e258fb69d822cfe3a60d3aeb59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54D55 8808 bytes
font_01_sfnt_off000566d7.bin
fcf353ee48f04ea6a57f3c87e1da667fb80083ddab781d972941c7f0e3afbb5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x566D7 16480 bytes

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