Malicious PDF — malware analysis report

Static analysis result for SHA-256 4359853dbd0c9475…

MALICIOUS

PDF

376.5 KB Created: 2015-08-28 11:29:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: fa418e83c4cc059dbaae6a5ff1b11de2 SHA-1: 698ccd7cb17a7a9a78c83f91fb265732b6025de1 SHA-256: 4359853dbd0c94754fa723becee47b4ed1318ad5e120eb1aa09ef870a7cb6b93
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 infrastructure. The embedded URL points to 'botcraftman.ru', which is associated with malicious activity. This suggests the document is designed to lure users to a harmful website. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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%B4%D0%BE%D0%BA%D1%82%D0%BE%D1%80+%D0%BA%D1%82%D0%BE+1963-1989+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788966_parkur__mod__dlya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788571_super__8__torrent_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4796/4796626_likvidaciya__skachat__besplatno_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000596fe.bin
1c5e41541195843de6ff13ad347580ce3683980b972e735cb5ed578ce1757b6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x596FE 9620 bytes
font_01_sfnt_off0005b1c5.bin
5fd4e097e3796fc051f1328b3257f598f3a5b9e2c8dd3e656f2c6c17e2e070d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1C5 15700 bytes

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