Malicious PDF — malware analysis report

Static analysis result for SHA-256 a93c67c5e93ba740…

MALICIOUS

PDF

44.8 KB Authoring application: OpenOffice.org
MD5: ded30900a6765feb99ac643a25df8936 SHA-1: 0032dcc90406bc65436db5c21d950baeb7afef7c SHA-256: a93c67c5e93ba740307192354909d9a8516d24650d30e40959e7543a9cfac3eb
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to other PDF files. This suggests a link farm or SEO spam campaign. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent, likely related to traffic redirection or phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://northeastbathrooms.co.uk/uploads/1/3/0/6/130621622/salomuluzifil.pdf
    • http://wb2129.com/uploads/1/3/0/6/130604414/molefolotexedevaloz.pdf
    • http://journey2wholeness.net/uploads/1/3/0/5/130539022/bbabf3e248cea0.pdf
    • http://runsolle.com/uploads/1/3/0/6/130639533/4678802.pdf
    • http://firebuglite.com/uploads/1/3/0/3/130323412/negamajobab-dagusa.pdf
    • http://earthstarweb.com/uploads/1/3/0/3/130313309/dovupu_takumupufuxi_libikugutulog.pdf
    • http://wptheme.club/uploads/1/3/0/5/130588213/lasulixozalani_ruxeti_lomizimijixago.pdf
    • http://newhopephotographylakeland.com/uploads/1/3/0/3/130313378/5b1c32336880049.pdf
    • http://mindforyou.org/uploads/1/3/0/5/130541944/tofutuwov.pdf
    • http://hellojean.com/uploads/1/3/0/4/130488223/ziban.pdf
    • http://advance-it.net/uploads/1/3/0/2/130288391/130288391.html#acute+glaucoma+eyewiki

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000126c.bin
44993a0b3485b5476e69fe01866748fc6d93d0e9b0afa69040420c66ac80375c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126C 8508 bytes

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