Malicious PDF — malware analysis report

Static analysis result for SHA-256 375e25625b5a71ca…

MALICIOUS

PDF

40.0 KB Created: 2020-03-26 06:15:02 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: aef32494e0a80c296aceb836c29eca0c SHA-1: d33de22889c47c250326727ffb3a2342c37db3c4 SHA-256: 375e25625b5a71cabeeeb1f0e2342c6b4c0fdb365c7ae5e30b285f7bb2e238f0
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO manipulation tactic. The ML_NYX_PDF_MALICIOUS heuristic also strongly indicates malicious intent. The document body, though partially corrupted, contains references to the URLs, reinforcing the link farm attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://tarasnaumenko.com/uploads/1/3/0/5/130543757/130543757.html#musculos+de+la+mimica
    • http://resiliencesoaps.net/uploads/1/3/0/6/130639282/nojib-rebipope.pdf
    • http://keykidoll.com/uploads/1/3/0/2/130287930/455cda.pdf
    • http://forumforhealthcarefreedom.net/uploads/1/3/1/0/131069812/6c20e7ccd7c8.pdf
    • http://buildingwellth.com/uploads/1/3/0/7/130775980/0c9a3fb.pdf
    • http://godskountrykreations.com/uploads/1/3/0/7/130775632/xetipuzozazivopo.pdf
    • http://shabazztribe.com/uploads/1/3/0/3/130323600/6131421.pdf
    • http://maralynhargrove.com/uploads/1/3/0/5/130551656/cb3ecc000f0.pdf
    • http://sethslawnandgardencare.com/uploads/1/3/0/4/130489066/a5dbf8.pdf
    • http://scarletexposurephotography.com/uploads/1/3/0/6/130620519/94536.pdf
    • http://shrinedads.com/uploads/1/3/0/3/130379354/2684764.pdf
    • http://isalosvilla.com/uploads/1/3/1/0/131070307/waxejeva.pdf
    • http://jlucemodernhomes.com/uploads/1/3/0/2/130270863/babfbd.pdf
    • http://131-bonus.site/uploads/1/3/0/6/130620364/gegup.pdf
    • http://www.guardianrealtor.com/uploads/1/3/0/2/130271082/4678885.pdf
    • http://beautybossqueen17.com/uploads/1/3/0/6/130639765/zagokulawunisox-nimaranojamogit-vowofemurefif.pdf
    • http://dietitianmanarnaqqar.com/uploads/1/3/0/6/130621213/2934667.pdf
    • http://dtxcuts437.com/uploads/1/3/0/8/130873863/ligolikorefujemerate.pdf
    • http://www.improbusiness.de/uploads/1/3/0/5/130551607/f02e22d9e308.pdf
    • http://mivux.ch/uploads/1/3/0/4/130476429/1804948.pdf
    • http://nathanbohachvibes.com/uploads/1/3/0/6/130639105/zaferupuw.pdf
    • http://moneysmartservices.com/uploads/1/3/0/5/130543569/8200574.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_off0000711f.bin
251801960c83f6d4c185c0419a8cd4e2a6cfd5b2df87c8b3e9d767b2273d1685		 pdf-font-stream PDF embedded font (sfnt) at offset 0x711F 8848 bytes

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