Malicious PDF — malware analysis report

Static analysis result for SHA-256 2983f33f6b5967c8…

MALICIOUS

PDF

384.7 KB Created: 2015-08-24 03:07:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: f63b753a2122eb4adc5453a6d74305e2 SHA-1: c97b3640170c165c3a8fc65f9d3856fac46624af SHA-256: 2983f33f6b5967c885b9e68fc0668a56b203168ef2d94ad8204ace9f270eadad
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to download additional malicious content or redirect to a phishing site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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%83%D0%BC%D0%BA+%D0%BF%D0%BD%D1%88+1+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D1%84%D0%B3%D0%BE%D1%81+%D1%80%D0%B0%D0%B1%D0%BE%D1%87%D0%B8%D0%B5+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%8B&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693775_bullet__for__my_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4697/4697806_gruppa__rozhdestvo__vse_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4694/4694165_kopatel__onlayn__moduy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005bbb8.bin
8ff9f87887465577d12fcab20e2d3ad1efb0ef45109c23a666def11c890f8703		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBB8 8244 bytes
font_01_sfnt_off0005d371.bin
5da7a94d141a14da2c686c8e82103cb6491928503df13ae07e7b89ba37065b6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D371 16028 bytes

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