Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ee82bbc90ecea4e…

MALICIOUS

PDF

35.4 KB Created: 2020-06-09 03:53:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e514df59d37e304694eb6a5ecc85be32 SHA-1: 421ddea898f22dfbb0c6e160e2824303dbed650a SHA-256: 0ee82bbc90ecea4e8c9177a7f6ed50cb1d1edabe2315cf77aa9de481492e6948
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, a technique often used for SEO spam or to direct users to malicious sites. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a link farm. While no scripts were directly extracted, the embedded links themselves are the primary indicators of malicious intent, likely leading to further compromise or information theft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://thenorafarms.com/uploads/1/3/0/2/130271128/130271128.html#parasite+eve+1+iso+espa%25C3%25B1ol
    • http://gcchurchva.com/uploads/1/3/0/6/130604363/febemigonebawod-sobodi.pdf
    • http://mail.becorefit.com/uploads/1/3/0/6/130639356/4174044.pdf
    • http://theloveconnoisseur.com/uploads/1/3/0/6/130605089/fotalup.pdf
    • http://knkconsulting.org/uploads/1/3/1/4/131438814/9112014.pdf
    • http://fotoliciousphotography.com.au/uploads/1/3/0/8/130874496/ec1158cd1bfcf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://lezikij545326841.files.wordpress.com/2020/06/81033582076.pdf
    • https://nalawerap212150830.files.wordpress.com/2020/06/36157078733.pdf
    • https://gagubajugi234726942.files.wordpress.com/2020/06/gepisedegexipoxefebizoli.pdf
    • https://forivugovov.files.wordpress.com/2020/06/wixedefuvobanubewolu.pdf
    • https://lojemaj.files.wordpress.com/2020/06/vuzodunufuvojediz.pdf
    • https://sofesetipi.files.wordpress.com/2020/06/nawedatafidewodemuwi.pdf
    • https://pusumog596056546.files.wordpress.com/2020/06/97254471047.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000597e.bin
457bc271c97eae28bcd3289a2d58cc927d7b178ad95f9bba3b3f94fc1dd0b66a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x597E 12244 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.