Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfeeeb96ac018444…

MALICIOUS

PDF

53.3 KB Created: 2020-04-03 11:11:11 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 090c2d019c50afb99e0ade88ef7dcb74 SHA-1: af25f277e22f9cc3069e93c2ddb2aff6f2c0ef84 SHA-256: cfeeeb96ac018444f0b799534913a93142304c527ec8423ccbb6c75a7c2cf3e3
94 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier as malicious. It contains a large number of external links to other PDF files hosted on various domains, indicating a link farm or SEO manipulation tactic. The document body contains garbled text and references to 'Organized mind daniel levitin pdf', suggesting a lure to download or view content. No scripts were extracted, and the primary malicious activity appears to be the distribution of links.

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://purelinewellness.com/uploads/1/3/0/7/130775009/130775009.html#organized+mind+daniel+levitin+pdf
    • http://propertyshopflorida.com/uploads/1/3/0/5/130551607/fusar.pdf
    • http://baumanbaps.com/uploads/1/3/0/5/130544811/sotovilatoguxur.pdf
    • http://mazeservices.com/uploads/1/3/0/4/130483847/vefawegeb_xamuj.pdf
    • http://duvalplazalotowners.com/uploads/1/3/0/7/130776331/golegede.pdf
    • http://chuck-to-ber-fest.com/uploads/1/3/0/7/130739260/bowikexebeleber.pdf
    • http://everroseclothingline.com/uploads/1/3/0/6/130604720/juvuf.pdf
    • http://texaspridepainters.com/uploads/1/3/1/3/131398006/7209291.pdf
    • http://theblacksmithcompany.com/uploads/1/3/0/8/130874416/rojetovaditulodix.pdf
    • http://startingpoint.info/uploads/1/3/0/4/130478772/vojomigutudo_diwanumi_xilamitasez_dobopasorule.pdf
    • http://tremletts-carpentry.com/uploads/1/3/0/7/130739087/4092313.pdf
    • http://4girlsdesignandgifts.com/uploads/1/3/1/1/131164394/vovebofaruwuxe.pdf
    • http://kellyhaskee.com/uploads/1/3/0/8/130873861/julogiw.pdf
    • http://mspublishingcompany.com/uploads/1/3/0/5/130551491/nakop.pdf
    • http://sheboutique-nj.com/uploads/1/3/0/3/130323932/c49f1.pdf
    • http://lillyjanesedibleflorals.com/uploads/1/3/1/3/131380342/fowopazunivip-tibudibumen-gaduxizabojilis.pdf
    • http://kinkshairwinchmorehill.com/uploads/1/3/1/1/131164364/buxizet.pdf
    • http://leadteachers.com/uploads/1/3/0/5/130590200/8617eac.pdf
    • http://unitecno.org/uploads/1/3/0/7/130738789/kirenugag.pdf
    • http://inmpa.com/uploads/1/3/0/3/130313790/gurafev.pdf
    • http://processforgrowthconsulting.com/uploads/1/3/1/4/131437656/xemojikojelan.pdf
    • http://poliglow-int.com/uploads/1/3/1/3/131383283/mevewefiniwis_turekawipavopil_bovijili.pdf
    • http://deniseramsden.ca/uploads/1/3/0/4/130488417/e7e5c709859d6.pdf
    • http://crochetandpositivity.net/uploads/1/3/0/8/130813489/2181426.pdf
    • http://alcorndesigns.com/uploads/1/3/0/9/130969616/zubejozulix.pdf
    • http://veggiefashion.de/uploads/1/3/1/4/131437157/fawebiratub.pdf
    • http://alcorndesigns.com/up
    • 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_off0000a50d.bin
f37859fef2d46250d13ecb508538e4ae5e007ae3d1710155138aa1e1457b503b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA50D 8340 bytes

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