Malicious PDF — malware analysis report

Static analysis result for SHA-256 9190b9eaecf8d91f…

MALICIOUS

PDF

39.6 KB Authoring application: pstoedit First seen: 2020-09-07
MD5: 84318473df73a8f401cfd5f6a5ab4803 SHA-1: 184a2a006ce49781456a5bd3d75dd5d4991cbcfe SHA-256: 9190b9eaecf8d91f96c018559ee407cf7affe4475252b934105195dcf034e5fb
152 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. This technique is commonly used to create link farms for SEO manipulation or to distribute malicious content. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to phishing or traffic redirection. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://traversecityinnovators.org/uploads/1/3/0/7/130775465/7140038.pdf In PDF document text
    • http://michaelakwoka.com/uploads/1/3/0/6/130622091/1263539.pdfIn PDF document text
    • http://mx.missourilwml.org/uploads/1/3/0/6/130604885/fapofatemazewo.pdfIn PDF document text
    • http://elementsofthemessage.com/uploads/1/3/0/6/130639528/bafiredazuzewuxagir.pdfIn PDF document text
    • http://morganhomesliving.com/uploads/1/3/0/4/130483537/487777.pdfIn PDF document text
    • http://goget.social/uploads/1/3/0/4/130483400/9063161.pdfIn PDF document text
    • http://www.idylwyldcreative.com/uploads/1/3/0/5/130588424/9672733.pdfIn PDF document text
    • http://toxique.org/uploads/1/3/0/7/130774977/pimaxowizewuxu.pdfIn PDF document text
    • http://crimeanddelinquency.com/uploads/1/3/0/6/130605335/zurar-vumepetu.pdfIn PDF document text
    • http://gemmamillerhair.com/uploads/1/3/0/6/130605194/793c125.pdfIn PDF document text
    • http://pacificpropertycapital.com/uploads/1/3/0/2/130272361/222698.pdfIn PDF document text
    • http://dogodogo.ru/uploads/1/3/0/7/130739535/2088888.pdfIn PDF document text
    • http://weekendgourmet.net/uploads/1/3/0/7/130739503/4404758.pdfIn PDF document text
    • http://michaelcaruso.net/uploads/1/3/0/2/130271019/xobupasoma-laditavegenadis.pdfIn PDF document text
    • http://williamsamuelphotography.com/uploads/1/3/0/2/130270867/nolibegilob.pdfIn PDF document text
    • http://tomvallee.com/uploads/1/3/0/4/130478314/zamid-notixusi.pdfIn PDF document text
    • http://myoppconsulting.com/uploads/1/3/0/2/130272291/tewatafibepefenu.pdfIn PDF document text
    • http://recordstoreknoxville.com/uploads/1/3/0/6/130639296/5750257.pdfIn PDF document text
    • http://kouturekitty.com/uploads/1/3/0/7/130776688/mexiwugujiwazaladoka.pdfIn PDF document text
    • http://stazkoassociates.com/uploads/1/3/0/7/130776177/3052803.pdfIn PDF document text
    • http://autodiscover.dickersongreenseminary.org/uploads/1/3/0/3/130379049/130379049.html#9-4+factoring+to+solve+quadratic+equations+form+gIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000020b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20B8 16080 bytes
SHA-256: 3e9a9dfb40a01f9f7c9c545b28ba37f1de74591f2b47bc69a9983f40f3f3ebd7
font_01_sfnt_off0000388a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x388A 8796 bytes
SHA-256: efbd05f5dd4df59530cdba235f3eff1026d6de5908b33eaa870594688b7331ba

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