Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fcacac09f8cfb55…

MALICIOUS

PDF

52.5 KB Created: 2020-05-22 11:07:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d05ddb4e2b8b4d662a5d99f32bbce15 SHA-1: 00ebe4de8ae5f985cf810b3ce963b9744d363428 SHA-256: 1fcacac09f8cfb55327f6c29c9682b335f426a1ac2328ed03df4320b095b5585
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious File: Malicious Link

The PDF file contains a large number of external links, many of which are numerically or generically named PDFs hosted on various domains. The document body also contains a reference to 'black sabbath torrent', suggesting a lure to download potentially malicious content. The primary function appears to be directing users to a link farm for further exploitation.

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://xinliyulekaihu.br3h.com/uploads/1/3/1/4/131438464/131438464.html#black+sabbath+torrent
    • http://xdgarchitecture.com/uploads/1/3/0/6/130604370/4239065.pdf
    • http://rusticlegacy.com/uploads/1/3/1/3/131379477/1798947.pdf
    • http://ledgertax.com/uploads/1/3/1/4/131453695/najuk.pdf
    • http://prepareporium.com/uploads/1/3/1/4/131453665/bf6e3d.pdf
    • http://belgitours.com/uploads/1/3/0/2/130289339/00ad2f2813ce74.pdf
    • http://ralphgarciapa.com/uploads/1/3/0/4/130475959/jolalipitoxe.pdf
    • http://paintforpink.com/uploads/1/3/1/3/131379832/9227836.pdf
    • http://jamesmchaffieclimbing.com/uploads/1/3/0/6/130620822/fd6f40d03.pdf
    • http://dawn-hudson.com/uploads/1/3/1/3/131383386/7560896.pdf
    • http://eleftheriadoukallia.com/uploads/1/3/0/8/130813314/vosulojo-kodegizuku-meruneb.pdf
    • http://manfredocamperio.it/uploads/1/3/1/8/131857204/1120ae42b4458.pdf
    • http://danielmavalyantsmusic.com/uploads/1/3/1/1/131164447/3e5744e.pdf
    • http://leplaisirdevendre.com/uploads/1/3/0/6/130604696/c19a1eee.pdf
    • http://alternativeholisticwellness.com/uploads/1/3/1/4/131406811/gevoriviw.pdf
    • http://twonineteennaturals.com/uploads/1/3/0/5/130539170/bumovabifixo.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_off0000a289.bin
72d90b41c6d33026ad0c9487370d06287579767eafa198b69a34c2d18a132818		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA289 10676 bytes

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