Malicious PDF — malware analysis report

Static analysis result for SHA-256 56a26b801fe590c1…

MALICIOUS

PDF

37.5 KB Created: 2020-04-10 16:59:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5f0d7df1f3b93cbdb87751297dba1033 SHA-1: 272c123f33c2022c314d907ac4d3083cd63abe81 SHA-256: 56a26b801fe590c176aedb7ae86e301516d95efa95327026584b4c9aed93bf2e
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to other PDF files hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The primary heuristic identified a mass external PDF link farm, suggesting an attempt to manipulate search engine results or redirect users to potentially harmful sites. No scripts were extracted, limiting the analysis of direct payload execution.

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://eternalrc.com/uploads/1/3/0/7/130739103/130739103.html#bombos+y+tarolas+cartel+de+santa
    • http://niedbrass.com/uploads/1/3/1/3/131380725/fobinisof.pdf
    • http://toietmoiesthetics.ca/uploads/1/3/0/5/130588332/5864036.pdf
    • http://twithj.com/uploads/1/3/0/8/130814645/9082d4c9b61937.pdf
    • http://naturalbeautyfactory.com/uploads/1/3/0/5/130589199/kulep_sajedafudopuz.pdf
    • http://robertstravelservice.com/uploads/1/3/1/4/131453850/gafaxizivolo_supew_ninomafozoref.pdf
    • http://karrowconsultinginc.com/uploads/1/3/0/6/130605152/4755739bc46d4.pdf
    • http://thesessiondrummer.com/uploads/1/3/1/4/131438829/fd66a.pdf
    • http://hitwriting.com/uploads/1/3/0/7/130739695/sonijalevazewazegege.pdf
    • http://msfitoutdoors.com/uploads/1/3/0/8/130814877/dojogipebisogesazug.pdf
    • http://felipesalcedo.com/uploads/1/3/0/7/130776457/bilivotujebara.pdf
    • http://thewindsofchangecollective.com/uploads/1/3/0/6/130604826/3405618.pdf
    • http://nancyleong.com/uploads/1/3/0/7/130776702/67396231.pdf
    • http://arayoflightfoundation.org/uploads/1/3/0/2/130287424/3310926.pdf
    • http://glorybundles.com/uploads/1/3/0/6/130603747/137791.pdf
    • http://californiaseniorcare.net/uploads/1/3/0/3/130379415/8704064.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_off000066ce.bin
027664e6b58e83e1a173ac5b76db990252f33f14868ef15b24fd8125954acc1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66CE 9004 bytes

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