Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd07b2ec1d894de…

MALICIOUS

PDF

42.6 KB Created: 2020-11-03 00:20:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-26
MD5: 132aeaf335351c76819a313d9afc3a34 SHA-1: 6327053575b38bc2b6efbf92d55b599c515d0a1f SHA-256: 3dd07b2ec1d894dee495f6b230a3a1c300ba875cedd32de8f15701e952fc3715
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=pterygopalatine%20fossa%20vs%20infratemporal%20fossa In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zetare/vobivokazajefewupukegag.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/vobimozenemap.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/pawoxuwomowejubili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7404/3038/files/12661228850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6091/9965/files/qt_creator_tutorial_deutsch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/7284/5490/files/whynter_arc_14sh_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6423/6481/files/2962327731.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27919f00-2dda-48c4-b24e-19005bd45d90/aaaaa_aaa_aaaaaaa_aaaaaaa_aaaa_aaaaaaaaa_aaa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/1247/1962/files/tilanitawanuboxezapufe.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/livro_sistema_bethesda_para_relato_de_citologia_cervical.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/serum_amylase_test.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/aggregate_planning_problems_and_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/6414328893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/9661/9193/files/55414783705.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_off000066df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DF 5384 bytes
SHA-256: 5c901ac7742dbd1e171ff386b2e3b91fb071bd88f0c845a0417a6c7042f6b8a4
font_01_sfnt_off00007932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7932 10536 bytes
SHA-256: 62f372b6fadb331c409c05a6401b768fd7967e9d8211cee81fa8ec6ac916c709

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