Malicious PDF — malware analysis report

Static analysis result for SHA-256 63e3eb15f5be1cd5…

MALICIOUS

PDF

350.7 KB Created: 2015-08-22 08:52:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 791ad8cee0641a31b35b0d225a22a301 SHA-1: 368bd5fd50ac10a433b46784e70a4078babc8f70 SHA-256: 63e3eb15f5be1cd54845e02011758610706c202659d355fbb93565b86229ce9e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the PDF structure and the malicious URL suggest it's designed to initiate a malicious download or redirect.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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+heavy+rain+%D0%BD%D0%B0+pc&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674463_skachat_igru_garrys_mod_13_s_modami_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674491_skachat_kw_dlya_kasperskogo.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674483_prava_root_dlya_freedom_skachat.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052edf.bin
2d3da68a7ac4acc4ac1150d52a4575cae994e235b58ed5ccdfcc75aae0093643		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52EDF 9356 bytes
font_01_sfnt_off0005482d.bin
c38e6b8203ff949bf74eec9eb6a60fa693ce67778804367c234161e0983b6199		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5482D 16984 bytes

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