Malicious PDF — malware analysis report

Static analysis result for SHA-256 08340d09f405f79b…

MALICIOUS

PDF

46.6 KB Created: 2020-05-14 04:54:55 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d441863e7a656eebe03f964ef333ca3f SHA-1: 68f1d31a3db9aadda73095dbd0bad53f724ae12c SHA-256: 08340d09f405f79b824945a23af956acb765ec4fca075df4eed15337e7685d43
96 Risk Score

Malware Insights

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

This PDF document functions as a link farm, directing users to numerous external websites under the guise of search results. The primary heuristic indicates a mass external PDF link farm, with one of the linked URLs being http://staclaritasc.com/uploads/1/3/0/7/130775606/jexexo.pdf. The document body contains a reference to 'best hair dryer 2019 consumer reports', suggesting a deceptive lure to attract clicks.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://shiying-cheng.com/uploads/1/3/1/4/131409693/131409693.html#best+hair+dryer+2019+consumer+reports
    • http://staclaritasc.com/uploads/1/3/0/7/130775606/jexexo.pdf
    • http://coloradoqualityflooring.com/uploads/1/3/1/3/131384765/dudasi.pdf
    • http://eliseimages.com/uploads/1/3/0/4/130435959/baduled-denogagabi-reduwuvafise.pdf
    • http://alecfasani.london/uploads/1/3/0/7/130776233/damodazula.pdf
    • http://club8inch.com/uploads/1/3/0/6/130604551/7271083.pdf
    • http://hersuccess.ca/uploads/1/3/0/7/130740262/09b597ad589f.pdf
    • http://cavaticamedia.com/uploads/1/3/1/4/131437679/wojatokasofonexiwi.pdf
    • http://clearviewicare.com/uploads/1/3/1/8/131871874/9ba746d71.pdf
    • http://becuban.com/uploads/1/3/0/6/130639698/c27ac27.pdf
    • http://radioliberland.com/uploads/1/3/0/7/130739944/9995e.pdf
    • http://heavensentphotographybykristen.com/uploads/1/3/0/9/130969608/kagatedovoru_xowob_sebekunoki_liwuviluza.pdf
    • http://hypotheekrekentool.nl/uploads/1/3/0/8/130874059/bb34337.pdf
    • http://arkapropiedades.com/uploads/1/3/0/8/130873853/nadewuxigupod.pdf
    • http://beautyintheblack.com/uploads/1/3/1/4/131438477/putupuv.pdf
    • http://imrosiepatey.com/uploads/1/3/0/3/130323253/raselalugutijisino.pdf
    • http://stowellpropertymanagement.com/uploads/1/3/0/2/130287472/pejojunexemil-fixomu-ligevebodugi-fifuti.pdf
    • http://msonormaltable.net/uploads/1/3/0/5/130550781/tofofozidi-zakomajimobigem-lefavem-madefoxenufujaz.pdf
    • http://themarketingtank.com/uploads/1/3/1/6/131636665/e2331651981.pdf
    • http://fixitfowler.com/uploads/1/3/0/3/130312976/b14c343c.pdf
    • http://backyardfootyposts.net/uploads/1/3/0/6/130603715/6027608.pdf
    • http://vivadeeretreat.com/uploads/1/3/0/5/130546118/pubinupakide_koxepewijamelo_turovare_rasiku.pdf
    • http://paintedplanetlicensing.com/uploads/1/3/0/5/130589310/594077.pdf
    • http://debzcabello.com/uploads/1/3/0/5/130546759/6410616.pdf
    • http://jt1express.com/uploads/1/3/1/4/131438556/tiridifujuxiwoxap.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000088ca.bin
acfef30a673f2fc470e2b269fb3c30e671b6d1ea8cd57241d1dcb134faa6cfb4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88CA 10748 bytes

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