Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d0c534b869929ac…

MALICIOUS

PDF

37.5 KB Created: 2020-05-21 06:48:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bae5ff25a2cea52ea954519f9ba27b73 SHA-1: fa40cefd55e5a1ace3625438e5c5a13e0d266ce8 SHA-256: 1d0c534b869929ac1ba10b786067297d3d7eb98fa104661c8487a367c69ee19f
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The ML classifier also flagged this PDF as malicious. The primary purpose appears to be directing users to a link farm, likely for SEO manipulation or to host further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://beautiufulhealingart.com/uploads/1/3/0/5/130551994/130551994.html#pixma+mx492+review
    • http://dangerzoneuboldo.com/uploads/1/3/0/6/130605381/midotalakiromu.pdf
    • http://santanderemprende.com/uploads/1/3/1/4/131482882/tovivuxobo_savosew_roxuxiv.pdf
    • http://mobilebillboardssantaclara.com/uploads/1/3/1/4/131407045/3617351.pdf
    • http://capehousebbnotl.com/uploads/1/3/0/7/130738616/siwefinekewe.pdf
    • http://thelittleclinicoxford.com/uploads/1/3/0/5/130547659/sadere-fapuruzoj-kopasovejemep-tinudogugenenil.pdf
    • http://2811mapleimages.com/uploads/1/3/0/6/130604449/53b9ee33f8c8fa.pdf
    • http://campbellmemorialbaptist.com/uploads/1/3/0/2/130288307/zufet_vuzijojokekida_fefefam_vuzepa.pdf
    • http://automotivepartsfinder.com/uploads/1/3/0/4/130436250/zasivixibudugel.pdf
    • http://isabellemarcusauthor.com/uploads/1/3/0/5/130590658/betexojut.pdf
    • http://margiemademe.com/uploads/1/3/0/7/130740616/junolusoj_rafulakif_wumifobilimere.pdf
    • http://foleza.nl/uploads/1/3/1/4/131437005/wejibawajajedate.pdf
    • http://myobsessionfixx.com/uploads/1/3/0/5/130588721/e27581.pdf
    • http://featurebeam.com/uploads/1/3/0/7/130776483/tikoluroduzu.pdf
    • http://michiganmarriagecounseling.com/uploads/1/3/0/6/130640071/1008622.pdf
    • http://drobgyn.net/uploads/1/3/1/0/131069759/nubiwemesi_widopisomi_fadag_ditozedepuja.pdf
    • 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/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000673b.bin
ea4b82f38ba252cd561578c5a34e3c08b7dff3a4fffac895957d4bf9321b922b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x673B 10552 bytes

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