Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b85667aa1aa1bd0…

MALICIOUS

PDF

40.0 KB Created: 2020-03-30 02:52:51 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0273ece65ef366c1f430f2c955bad362 SHA-1: aceadc48df0054d68ade6b8a67fe7cb147ba1b08 SHA-256: 9b85667aa1aa1bd08e30aadc6ebd85d9cf9868585cbd87caaf2b894f5d66e1b1
92 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, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body contains the phrase 'Operaciones mentales definicion', which appears to be a lure. The primary function of this document is to act as a link farm, likely to manipulate search engine results or to distribute further malicious content through the linked PDFs.

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://nobuhotelmarbella.devsite-1.com/uploads/1/3/0/5/130551823/130551823.html#operaciones+mentales+definicion
    • http://lens360media.com/uploads/1/3/0/6/130620424/pogilajugim_zajesaradimofo_gefisiri_burodoki.pdf
    • http://bpwcontinuingeducation.com/uploads/1/3/1/1/131163777/2535639.pdf
    • http://thehopepartners.org/uploads/1/3/0/7/130739247/83bc75033a.pdf
    • http://mosestuki.com/uploads/1/3/0/5/130590463/34615b35086.pdf
    • http://stephensayegh.com/uploads/1/3/0/9/130969851/kulewigewesir.pdf
    • http://cdksockgang.com/uploads/1/3/0/6/130621299/22ecf3b525d7c59.pdf
    • http://maxgirouxpro.org/uploads/1/3/0/4/130483303/ronexukezosa_xegodu_jeduvazoxivusin_zuror.pdf
    • http://truegift.us/uploads/1/3/1/1/131164234/sufon_josez_faridizefij_wanirod.pdf
    • http://ppas2020.com/uploads/1/3/0/2/130274378/f81689b5b12b5a.pdf
    • http://grillhousebrand.com/uploads/1/3/0/8/130814338/1656582.pdf
    • http://topguntattooing.studio/uploads/1/3/0/6/130639437/466583d616b948.pdf
    • http://sunflowerandwillowsco.com/uploads/1/3/0/9/130969515/zewidopaliw-fuvitomixetivuf.pdf
    • http://evie-love.com/uploads/1/3/0/6/130639465/9312815.pdf
    • http://flanagansbeerfest.com/uploads/1/3/0/6/130604434/530f47.pdf
    • http://heartsinhandchildevelopmentcenter.com/uploads/1/3/0/8/130814513/meluburikakide.pdf
    • http://taxfirmsolutions.com/uploads/1/3/0/4/130490117/ba281737284d09.pdf
    • http://sacramentoyardcare.com/uploads/1/3/0/3/130379365/vowiri.pdf
    • http://silviomaestrelli.com/uploads/1/3/0/8/130814430/ec886be63.pdf
    • http://savis-inc.com/uploads/1/3/1/1/131163976/naliwi_tafavugab_foridiri.pdf
    • http://konceptdev.net/uploads/1/3/1/0/131070313/3519797.pdf
    • http://amandasdigitalbinder.com/uploads/1/3/1/1/131164112/japokikogefelove.pdf
    • http://chickenindex.com/uploads/1/3/0/7/130738722/kebekanobexesimabix.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_off000071cc.bin
4c6fc1a04f2e1d255ae91abcfe742e23a12f0688aebcb25156680c99cde7b5c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71CC 8612 bytes

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