Malicious PDF — malware analysis report

Static analysis result for SHA-256 603bd712ecc4f0fd…

MALICIOUS

PDF

36.7 KB Authoring application: Inkscape
MD5: 999808eeacecb7bdc6aa7ea39ca707e2 SHA-1: 962cda160b29a623a06f6d7d8666754d7e4b762a SHA-256: 603bd712ecc4f0fdb3051592e23dcdb35c61104e05042fd221c8563a7ac7353a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0 and a machine learning classifier. The document body contains numerous embedded URLs pointing to external PDF files, suggesting a link farm or a distribution mechanism for further malicious content. The presence of these links and the heuristic firing 'PDF_SEO_LINK_FARM' indicate a likely attempt to manipulate search engine results or distribute malware.

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://lehip.net/uploads/1/3/0/6/130620843/626fced7.pdf
    • http://naturalhealthexpo.ie/uploads/1/3/0/3/130313671/663842.pdf
    • http://constructioninsurance.net/uploads/1/3/0/6/130605175/cc4c2b45ff.pdf
    • http://buysanfordrealestate.com/uploads/1/3/0/6/130639380/nokoturuvo.pdf
    • http://northtexasdoodles.com/uploads/1/3/0/4/130483830/demarilitesiluxefeve.pdf
    • https://jomolomiwoxilof.weebly.com/uploads/1/3/0/5/130588318/govidaluzawa.pdf
    • http://budsmotorauctions.com/uploads/1/3/0/7/130739269/komuveba.pdf
    • http://logograms.net/uploads/1/3/0/5/130551059/jakozejolobigo.pdf
    • http://rhjerkyoutlet.com/uploads/1/3/0/2/130289341/jajifo.pdf
    • http://mikeintucson.com/uploads/1/3/0/2/130274343/130274343.html#guidelines+for+asymptomatic+primary+hyperparathyroidism
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000120b.bin
094fad84f7a0db2a2ddccb59cc681d6b016585169e58784f334dbcb3bd872009		 pdf-font-stream PDF embedded font (sfnt) at offset 0x120B 8564 bytes
font_01_sfnt_off000048a8.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48A8 16036 bytes

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