Malicious PDF — malware analysis report

Static analysis result for SHA-256 7665f2a85f39fcab…

MALICIOUS

PDF

37.7 KB Authoring application: Poppler-utils
MD5: 3b5f7f8b1ca9ac48fa22d7f5e72a6f40 SHA-1: 6184fadbadad2eda883232fc44fdc2b7053bc482 SHA-256: 7665f2a85f39fcabd119719badea25e694a5aeb9e7c156869db1d24eb6b72e89
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a coordinated effort to manipulate search engine results or distribute malicious content. The ML classifier and ClamAV detection further support the malicious nature of this file. No scripts were extracted, but the primary attack pattern involves directing users to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://www.nappermusicandmore.com/uploads/1/3/0/7/130740368/piziwe.pdf
    • http://theplanwellnessplace.com/uploads/1/3/0/3/130313150/dufikegove_jodegoge_fifaminegejugom.pdf
    • http://tommulherin.info/uploads/1/3/0/9/130969599/e9485286.pdf
    • http://sobreruedas.tv/uploads/1/3/0/6/130603690/7873372.pdf
    • http://drumvoice.org/uploads/1/3/0/8/130814448/tizomaponesopab-wodas-naxovobabado-tokaxevitozen.pdf
    • http://too-perfect.com/uploads/1/3/0/6/130639733/7894103.pdf
    • http://myboathaus.com/uploads/1/3/0/4/130483200/f412d10.pdf
    • http://empoweredlifebydesign.com/uploads/1/3/0/2/130291676/zubisobobidibati.pdf
    • http://astradesignskc.com/uploads/1/3/0/3/130323593/wemadetaveru.pdf
    • http://merryxmasgreetings.net/uploads/1/3/0/5/130589397/movadajidib-rawaze-nelufupubafizo-lisubewola.pdf
    • http://cuttingedjj.com/uploads/1/3/0/2/130292073/sudufizotufufowojagu.pdf
    • http://mvspropertymanagement.com/uploads/1/3/0/5/130543207/bimexogitikowij.pdf
    • http://thatclassiccarshow.com/uploads/1/3/0/6/130620924/5866212.pdf
    • http://tourslatam.com/uploads/1/3/0/7/130776814/fb4fc.pdf
    • http://cissphq.com/uploads/1/3/0/6/130639590/2908741.pdf
    • http://kidsrgone.net/uploads/1/3/0/5/130545597/ea29453d3e45229.pdf
    • http://mrsscharnhorst.com/uploads/1/3/0/6/130639554/7b43f27682.pdf
    • http://musette-ventures.com/uploads/1/3/0/7/130740003/wojijogafi-tufujokejudogo-dezosejov-rutavodimoxari.pdf
    • http://www.pmpclones.com/uploads/1/3/0/8/130814118/rafufogot_nafunatugatawu_fuzunifijotatab.pdf
    • http://chandlersbaygrocery.com/uploads/1/3/0/9/130969262/ximul-kawinutezamibin-diboz.pdf
    • http://rsghzb.salon225.com/uploads/1/3/0/6/130620807/130620807.html#teaching+imperative+sentences+to+first+grade

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003374.bin
82aba0baf2fa711b39a6feeb45b1f9e160c94c62dbd4830ee6330857899c657e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3374 7928 bytes

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