Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd045604e7c0e24…

MALICIOUS

PDF

359.1 KB Created: 2015-08-28 00:04:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: d84f9ec5b6fb8e4fad62fa9b6ea82dd0 SHA-1: 0445e4c53389bdc1db9116f309e5f1dff3dedebf SHA-256: 9dd045604e7c0e240fd4e9b41fbc2c8ea35b8664e9ce66fc954df676cb99ae78
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. A critical heuristic identified a link to a known malicious redirector at http://botcraftman.ru/. This indicates the document's primary purpose is to lure the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-9147386-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9147386-0
  • 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%BB%D0%B6%D0%BD%D0%BE%D1%81%D1%82%D0%BD%D0%B0%D1%8F+%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F+%D0%B1%D1%83%D1%85%D0%B3%D0%B0%D0%BB%D1%82%D0%B5%D1%80%D0%B0+%D0%BF%D0%BE+%D1%80%D0%B0%D1%81%D1%87%D0%B5%D1%82%D0%B0%D0%BC+%D1%81+%D0%BA%D0%BE%D0%BD%D1%82%D1%80%D0%B0%D0%B3%D0%B5%D0%BD%D1%82%D0%B0%D0%BC%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788008_gimp__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788236_raspisanie__avtobusov__moskva_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788384_skachat__igru_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055da9.bin
5b0f544d6b072720233b25d8176174d157642e69989b688b6ddccb5a80da36db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55DA9 8420 bytes
font_01_sfnt_off0005766e.bin
9625018bb47219dbfbb1b36112f0f884607c8ea1cfbc93b2f79920f5b6496ec4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5766E 11928 bytes

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