Malicious PDF — malware analysis report

Static analysis result for SHA-256 d505d858eab17d1f…

MALICIOUS

PDF

41.8 KB Created: 2020-10-01 01:50:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-29
MD5: 893cbb1c0b7c569fe5ad0bc8e540d467 SHA-1: fa935d44432c52c34380608076d4cca5b1e9e8b7 SHA-256: d505d858eab17d1fc37d42e1df653ba7475dfab8b28b8b81f6960d6c9f4d0727
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://cctraff.ru/strik?keyword=ave+maria+bach+piano+pdf In PDF document text
    • http://files.truthfulart.com/uploads/1/3/0/8/130874411/595672.pdfIn PDF document text
    • http://guvusobe.prographics3.com/uploads/1/3/2/7/132741593/xenidujavux.pdfIn PDF document text
    • http://fuludero.bsmcmilehighchapter5280.com/uploads/1/3/0/9/130969504/1992405.pdfIn PDF document text
    • http://berenobo.zrscg.com/uploads/1/3/1/6/131606739/dogiwasemisix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9869/3013/files/common_core_algebra_2_unit_13_lesson_2_homework_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6745/5128/files/skyrim_special_edition_guide_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5639/0551/files/52962267762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1522/files/79257906067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3429/5966/files/les_cercles_de_la_forme_republique_planning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/koguzivepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1739/4586/files/vinajij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3901/files/dism._exe_online_cleanup-_image_startcomponentcleanup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/2471/2615/files/wind_worksheets_2nd_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7299/2918/files/npma_33_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5448/1056/files/34554472742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/7707/9718/files/tudenasosiposetoduk.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 7

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DF 5376 bytes
SHA-256: c087fc652509d2dda7d0f1e7e5585af76cd08251821d326ba275b4b6a01e3855
font_01_sfnt_off00007300.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7300 13696 bytes
SHA-256: 58de5ea2b194285fb4dd05d31d6456882ac71b8f8ac52419c7298b288bf0682c

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