Malicious PDF — malware analysis report

Static analysis result for SHA-256 42543988c13ca033…

MALICIOUS

PDF

44.3 KB Created: 2020-10-24 06:44:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 76cfb096a6a4be576379eb0c67fa7b93 SHA-1: 624dd318266184d9b9bf858f5f656afb172abe5b SHA-256: 42543988c13ca03366d113080137b1e54d9266c1b38cde6a26507dd0f1202481
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://ttraff.com/123?keyword=non+thyroidal+illness+syndrome+pdf In PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/lonasexevexa.pdfIn PDF document text
    • https://zinikedefi.weebly.com/uploads/1/3/0/7/130740178/3408408.pdfIn PDF document text
    • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/xumavefodomagaw_vanogufuwarapo_nopokakakamu.pdfIn PDF document text
    • https://jimagofer.weebly.com/uploads/1/3/0/8/130813953/logakinanoken.pdfIn PDF document text
    • https://nirejabepifu.weebly.com/uploads/1/3/4/2/134266024/gegawukiwixavarifem.pdfIn PDF document text
    • https://revokaraso.weebly.com/uploads/1/3/4/3/134320841/3315762.pdfIn PDF document text
    • https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/melufazap_jabax_vovefef.pdfIn PDF document text
    • https://rudofodirofebas.weebly.com/uploads/1/3/0/7/130739781/vixixevumi.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/gevoderovepiru.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/68676227918.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/anesthesia_drugs_book.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/fabovotoliduvawoz.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/dazaresurevisan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5540/6494/files/sidelorexukulupulox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5940/7765/files/didnt_find_class_androidx.core.app.corecomponentfactory_proguard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3071/5288/files/sozotigejiworadolewapura.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/la_cantatrice_chauve_eugene_ionesco.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/pofeza.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/negosuduvagunuxi.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/48718967538.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/parewetezu.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E07 5352 bytes
SHA-256: 9462ae1f0868f5001fc6b018b45c6c22625298aaaeb6de7e2d47bd979b854f27
font_01_sfnt_off0000801e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801E 10504 bytes
SHA-256: d5f79df108258ff28dce2c38aa14bf2a875424ce9b7d6f7f6fa5b865e914aa33