Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b6c566cab68ceda…

MALICIOUS

PDF

52.1 KB Authoring application: PDFBox
MD5: 75e1c8c92c32cd42889b7f5447215cc7 SHA-1: 3e92be5bd271768ccd9152c781b2591721f9e37b SHA-256: 8b6c566cab68ceda510285b9a8ddc33ab6bbf88e8c16d6fd2c1cf15e8f0e6c6f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents hosted on various domains. This behavior is indicative of a link farm or SEO poisoning attack, designed to drive traffic to potentially malicious content. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a phishing or traffic redirection motive.

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://tahoetimbersledtours.com/uploads/1/3/0/3/130323164/c1fa02e.pdf
    • http://calhounheritagep.com/uploads/1/3/0/7/130739399/godaloxof.pdf
    • http://www.millkiller123.com/uploads/1/3/0/6/130620665/0e5e6be3d.pdf
    • http://bbailey24.com/uploads/1/3/0/5/130540290/kajidijazaxozesewup.pdf
    • http://nasumo.com/uploads/1/3/0/5/130551073/zesixamoligunag_vibaxena_teluxajita_rofekibe.pdf
    • http://refinishedcabinets.com/uploads/1/3/0/7/130740062/b92dfa958.pdf
    • http://mail.gbinashville.com/uploads/1/3/0/4/130483514/8cf7a1837.pdf
    • http://myelitestaffinggroup.com/uploads/1/3/0/8/130813818/dosemiwulefurazi.pdf
    • http://auditionhell.com/uploads/1/3/0/6/130604758/7089534.pdf
    • http://sarahfisheducation.com/uploads/1/3/0/6/130620996/bezewupod.pdf
    • http://church-playgroundequipment.com/uploads/1/3/0/6/130621581/senunawewejoxiz_zoturaxatotipuz_naviwuxi_kojekosopadu.pdf
    • http://www.tchikidavis.com/uploads/1/3/0/4/130489102/9661231.pdf
    • http://resurfacetechnology.com/uploads/1/3/0/4/130489363/pokiwagatasakidelo.pdf
    • http://www.maryannsteinke-moore.com/uploads/1/3/0/6/130639305/dasukupalavezes.pdf
    • http://sitedevelopmentportal.com/uploads/1/3/0/5/130588588/sewijexuriko_mitopilovil.pdf
    • http://brainflair.com/uploads/1/3/0/2/130270941/3989151.pdf
    • http://oceanviewpatriots.com/uploads/1/3/0/6/130640144/4932692.pdf
    • http://sadiths.com/uploads/1/3/0/2/130272232/130272232.html#cause+of+ascites+in+cirrhosis

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00000f46.bin
a7329f0e52904a2d8f89d81347fcd4257ee4141723b3bbad88acbfd6e5f975e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF46 9604 bytes

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