Malicious PDF — malware analysis report

Static analysis result for SHA-256 305e220c97c9b7a8…

MALICIOUS

PDF

37.1 KB Created: 2020-03-29 23:48:30 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5b44d6cadb9ae45bc57377f412f521b8 SHA-1: c0a5c7c91453e9416646f8e4810cc651e7d676dc SHA-256: 305e220c97c9b7a8499075824dea966724d1fbb227109e21bb1f583370b2ef1a
62 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating a link farm with 28 external PDF links. The document body, though partially corrupted, contains the text 'Caracteristicas personales de los emprendedores exitosos' and multiple URLs pointing to PDF files on various domains. This suggests the document is designed to redirect users to a large number of external resources, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

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://ndtasanantonio.org/uploads/1/3/0/3/130313491/130313491.html#caracteristicas+personales+de+los+emprendedores+exitosos
    • http://jordansgunworks.com/uploads/1/3/0/4/130436289/9989067.pdf
    • http://thomasvasasphotography.shop/uploads/1/3/1/0/131070387/lulejukas.pdf
    • http://karansghai.com/uploads/1/3/0/3/130323967/kadebanefowijov.pdf
    • http://christcapital.com/uploads/1/3/1/4/131438587/xivelesezemiwagab.pdf
    • http://www.dmitrithompson.com/uploads/1/3/0/2/130270785/9781996.pdf
    • http://renoexperts.net/uploads/1/3/0/5/130542755/7820999.pdf
    • http://eibbedpadilla.com/uploads/1/3/0/3/130379651/nejonezuw-jigewogidetul-rapiri.pdf
    • http://schwarzdevelopment.com/uploads/1/3/0/6/130621809/suzapekuzizova.pdf
    • http://village-educational-centre.org/uploads/1/3/0/3/130313453/2679736.pdf
    • http://spiralup127.org/uploads/1/3/0/9/130969473/pipogijuvod.pdf
    • http://explaineverything.net/uploads/1/3/0/3/130313436/galodus.pdf
    • http://meridiancorporatecenter.com/uploads/1/3/1/0/131070604/138124.pdf
    • http://teaismedicine.org/uploads/1/3/0/8/130813757/3eb5d4e15d51579.pdf
    • http://desrochersma.com/uploads/1/3/0/8/130874652/8573773.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_off00006b12.bin
164b66c8a1c5fd9fb1dfc42227daedee49a321bfd304355cc9565c583041851e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B12 6936 bytes

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