Malicious PDF — malware analysis report

Static analysis result for SHA-256 7822999814d21043…

MALICIOUS

PDF

42.9 KB Created: 2020-10-17 21:16:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 7aec59471f9fff70f7d1df884df94849 SHA-1: f51480654cfcdb58f1cb45570c7bf138a155ed62 SHA-256: 7822999814d21043a552170f4c9f421c4f7fca30a58b6dfe84c0857ed8f0f719
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.ru/123?keyword=citizen+participation+in+democracy+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369905/normal_5f88fa74240ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373240/normal_5f8a0bbc81ce6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367287/normal_5f89c448c4dc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375197/normal_5f8af47b657ab.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/kirorafagosox.pdfIn PDF document text
    • https://jenafowumavadas.weebly.com/uploads/1/3/1/4/131437472/zokisizovisom.pdfIn PDF document text
    • https://redunexodozik.weebly.com/uploads/1/3/0/8/130814050/molujimigitesu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3abdc419-8545-44b7-923a-512419f72512/saxenejogov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/4786/4478/files/zugikalepazuduxiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/3408/2979/files/zezut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7846/6201/files/32498155113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9431/3627/files/how_to_make_a_honey_bottle_in_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/3968/4256/files/android_studio_project_java_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3853/9927/files/what_food_do_blobfish_eat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f818e2d1-7aca-4cc6-9e3b-d87845acee78/digobaxid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5254b2e9-326f-42e5-ab6e-04c99b24503a/zokaz.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_off00006973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6973 5148 bytes
SHA-256: 1a771520290ed505741396509c428974f2bac65f16b587a9a5e02ed75737826d
font_01_sfnt_off00007ae6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE6 10304 bytes
SHA-256: 2eb61d54fa389669ae11426306d18a4d979e7440f474148a8838ac61ca02cc53