Malicious PDF — malware analysis report

Static analysis result for SHA-256 697784c2238a1b05…

MALICIOUS

PDF

46.9 KB Created: 2020-05-16 08:26:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0046f3edbe4879f02573c911db903844 SHA-1: 2d8ddf9266be3b8301e335745736258c04d862ae SHA-256: 697784c2238a1b0555be0d1480e22fc643474da67ddbb81ca94d2cc55968f96a
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection to malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the sheer volume of outbound links points to a likely attempt to direct users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bensterpropertiesllc.com/uploads/1/3/0/6/130639609/130639609.html#how+to+add+appendix+in+latex+report
    • http://nativityoldcatholic.com/uploads/1/3/1/3/131398195/0c3d2.pdf
    • http://vendorchampion.com/uploads/1/3/0/6/130621814/e22dd73c185.pdf
    • http://deliverbg.com/uploads/1/3/0/5/130545396/gibis_lasejigulow_fupifuli_zopavo.pdf
    • http://richtiginc.com/uploads/1/3/1/6/131636664/lizejugarosis-ruvon-pigupotugum.pdf
    • http://zelger-entertainment.com/uploads/1/3/0/2/130272369/puxepene.pdf
    • http://meditationgiftshop.com/uploads/1/3/0/6/130604687/kugokizozigaw.pdf
    • http://lightsoutelectric.net/uploads/1/3/1/1/131163664/6e546.pdf
    • http://amishcraftcabinetry.com/uploads/1/3/1/8/131871439/838453.pdf
    • http://evokedanceeistedfodd.com/uploads/1/3/1/6/131637276/bc36e7f19959.pdf
    • http://hogo-avocats.com/uploads/1/3/1/3/131379598/rifidemejawozatavi.pdf
    • http://daniel-dixon.com/uploads/1/3/0/7/130776142/nelato-nejezirepajun-dimina.pdf
    • http://draquisqueya.com/uploads/1/3/1/4/131438007/8f845.pdf
    • http://mediastarsystem.com/uploads/1/3/0/3/130313346/2948791.pdf
    • http://carriekirkpatrickmemorialgolftournament.com/uploads/1/3/0/7/130776070/mumudisanufaram.pdf
    • http://luckybum.org/uploads/1/3/0/7/130775520/xesafirukovazonaj.pdf
    • http://luftmaster.ee/uploads/1/3/0/2/130289686/1634213.pdf
    • http://jeneanfarris.com/uploads/1/3/0/2/130291585/wavekokamijepozad.pdf
    • http://begachecuador.com/uploads/1/3/0/2/130291491/5b93067fd4e.pdf
    • http://timkellycoach.uk/uploads/1/3/0/8/130873893/1969040.pdf
    • http://modebop.com/uploads/1/3/0/7/130738781/3215844.pdf
    • http://theurbanclimatologist.com/uploads/1/3/0/5/130589191/5184479.pdf
    • http://agsolucoes.net/uploads/1/3/1/0/131070485/837de05d5d22250.pdf
    • http://adelidiomasetraducao.com/uploads/1/3/0/8/130814004/jakutovuzidolu.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_off000088a9.bin
f66455e7611cd53622a2c3bbe16bfd35e6c0646c9bf2eeb72eac8fb63e532480		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88A9 11496 bytes

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