Malicious PDF — malware analysis report

Static analysis result for SHA-256 7060073699c5a025…

MALICIOUS

PDF

31.0 KB Created: 2020-03-29 11:59:33 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0a56945035c8ea63ad4436e1df922095 SHA-1: aa02233262bb19b6f9c0e3689d277201dd215194 SHA-256: 7060073699c5a02561bc81e3031be83ff9181cf48ec07773eb840da5e30f8c24
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a large number of embedded external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. These links likely serve to direct users to potentially malicious websites or for SEO manipulation. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of numerous external links suggests an attempt to redirect the user to a compromised or malicious site.

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://michaudwellness.com/uploads/1/3/0/7/130740235/130740235.html#speed+queen+commercial+dryer+temperature
    • http://practicalcoldcase.com/uploads/1/3/0/7/130739740/jivuzeku.pdf
    • http://ablackeyedsusan.com/uploads/1/3/0/2/130270892/subajapena.pdf
    • http://theparksphysie.com/uploads/1/3/0/9/130969423/3862245.pdf
    • http://nofriendnorfood.com/uploads/1/3/0/5/130588960/2692326.pdf
    • http://xactaclaimz.com/uploads/1/3/0/5/130551962/sunebo.pdf
    • http://vapebypost.com/uploads/1/3/0/4/130476981/5146487.pdf
    • http://lanesparkles.shop/uploads/1/3/0/6/130621446/devijerefa.pdf
    • http://u3techsolutions.com/uploads/1/3/0/6/130604495/fipulu.pdf
    • http://tinypawsadoption.com/uploads/1/3/0/5/130551094/b1f4e.pdf
    • http://stsrx.com/uploads/1/3/1/3/131384735/874573.pdf
    • http://mynewstyleshopusa.com/uploads/1/3/0/7/130775085/monedur.pdf
    • http://midpointlogisticscenter.com/uploads/1/3/0/7/130739654/padenerafasixes-lokataxepu.pdf
    • http://dj4rain.com/uploads/1/3/0/6/130605135/a3355a10dd572f1.pdf
    • http://gregplatt.com/uploads/1/3/1/1/131164081/937581afc.pdf
    • http://stemstil.nl/uploads/1/3/0/3/130313366/914142.pdf
    • http://snowdonia-estateforsale.com/uploads/1/3/0/8/130873976/2073559.pdf
    • http://gratiotcountyfreeclinic.info/uploads/1/3/0/7/130776504/f7657498a7.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_off00005463.bin
08a47626a7d99b05b96f89e562c73f0dfd0c6a353a029effc7d969b74db29658		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5463 6572 bytes

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