Malicious PDF — malware analysis report

Static analysis result for SHA-256 8475d476ffe9d180…

MALICIOUS

PDF

39.6 KB Created: 2020-10-26 19:18:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-05
MD5: aabe449c975b0f876cb818db063fc5d7 SHA-1: dff4229fc2a50dde8568204bf0de14b2a2da1e02 SHA-256: 8475d476ffe9d18059b744b4fa122a04c90714efae2ca992f832e1e46cb9ff6f
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://ggtraff.ru/wb?keyword=antalya%20map%20pdf%20download In PDF document text
    • https://s3.amazonaws.com/kigavanus/latitudes_1_cahier_d_exercices_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/sewing_machine_parts_name_with_picture.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/html_cascading_style_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/66088422351.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/gk_capsule_june_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/anatomy_and_physiology_openstax.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005a6a.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005a6a.bin)
    • https://uploads.strikinglycdn.com/files/449dc9d1-1f6c-4183-a0fe-af2ac4b8b4f2/70424844760.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49066369-ca74-4e6d-bfef-3446064e8032/le_corps_humain_ms.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f88e82fb-afe9-4735-af08-efdc454f7d9f/letajigosulera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7580/6391/files/goweburozogedoxev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2213/9043/files/why_is_art_important_to_culture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4359/3109/files/33084906274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0390/6717/files/lois_from_family_guy_voice_actor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/jiromusevopavut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8307/0629/files/fx_file_explorer_pro_apk_revdl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8176/files/puluvomajedajowog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8304/5293/files/libro_dieta_scarsdale_italiano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1731/2152/files/wasekasanaremizetik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2259/6768/files/fubajobewenovulir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/6050/1921/files/slow_shopping_thrapie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6f76968-0223-4596-a3f6-4b7d201432e3/90776195028.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 extracted file (font_00_sfnt_off00005a6a.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A6A 5096 bytes
SHA-256: eb5a49a3baf46fc1898f9bd54d4f36fbbc632c925d9a229c74eedd88fb5dbdfa
font_01_sfnt_off00006bcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BCD 11032 bytes
SHA-256: 37bbf3e02c508e1e799f9bb9b7a4d3fffcf38473fd408ff1658f17c43c702959