Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f170ccfc23b6289…

MALICIOUS

PDF

37.9 KB Created: 2020-06-12 21:28:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e84c69e451f353987f7137d6a9bcc30 SHA-1: 49b8d0764a26f4ec4f181b20efd73793a26c309c SHA-256: 3f170ccfc23b628973c8051c439d445a3835fb3322caee758ae7db38a0fe2acb
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to various domains, identified as a 'PDF_SEO_LINK_FARM' heuristic. The document body also contains a URL that points to a Turkish phrase related to adult content, likely a lure. The primary function appears to be directing users to a network of linked PDF files, potentially for SEO spam or to host further malicious content.

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://jna4x2.bdgct.com/uploads/1/3/0/6/130620607/130620607.html#%25C3%25BCcretsiz+%25C3%25A7orap+porno+galerileri PDF link annotation
    • http://theacademyny.com/uploads/1/3/0/6/130603761/8252a.pdfIn PDF document text
    • http://weinbergllc.com/uploads/1/3/1/3/131378774/48823ae.pdfIn PDF document text
    • http://olyrartcreations.com/uploads/1/3/1/1/131164386/8139911.pdfIn PDF document text
    • http://bahamasbeachvacations.com/uploads/1/3/0/6/130604162/7884875.pdfIn PDF document text
    • http://elrustico.net/uploads/1/3/0/3/130323612/fejinavo.pdfIn PDF document text
    • http://feine-stoffe-koeln.de/uploads/1/3/0/9/130969810/lifukirewogisi.pdfIn PDF document text
    • http://handyprosonline.com/uploads/1/3/0/2/130289782/rupezamivor.pdfIn PDF document text
    • http://hostmaster.zahnarztaffoltern.ch/uploads/1/3/1/3/131379555/3569012.pdfIn PDF document text
    • http://simplyserinati.net/uploads/1/3/1/6/131636570/1781906.pdfIn PDF document text
    • http://louisianavirtualacademy.net/uploads/1/3/1/4/131407514/5514388.pdfIn PDF document text
    • http://dfhak.com/uploads/1/3/1/3/131383864/tisegu.pdfIn PDF document text
    • http://propertypeninsula.com/uploads/1/3/0/9/130969041/sesinamo.pdfIn PDF document text
    • http://shop-offbeat.com/uploads/1/3/1/4/131407011/vevef_povasigeponowid.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://levejaru304222751.files.wordpress.com/2020/06/45581231562.pdfIn PDF document text
    • https://tebeririwa.files.wordpress.com/2020/06/nubonewojoxel.pdfIn PDF document text
    • https://xurabiguju.files.wordpress.com/2020/06/bufoleweradodetabetiz.pdfIn PDF document text
    • https://fodasudo.files.wordpress.com/2020/06/40170862836.pdfIn PDF document text
    • https://kotosidimof.files.wordpress.com/2020/06/96671062360.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6041 13676 bytes
SHA-256: 93d1c77a5c9f1fa3aa4c198c05a330b0e43e347d14375f7c06b1345b80d07e24

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