Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd4afab71054d86…

MALICIOUS

PDF

138.7 KB Created: 2020-10-16 00:34:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-26
MD5: 6c65314e419a60892c94cc4f8d93ff2c SHA-1: ee06e5b43d4fb2102dbdd7d2f58658531258da43 SHA-256: 3dd4afab71054d8690e70ea25de8268b25ba972af7d89adfe2ac170aba174509
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?keyword=oracle+6i+reports+tutorial+pdf In PDF document text
    • https://mamexobupelo.weebly.com/uploads/1/3/1/3/131383482/7497823.pdfIn PDF document text
    • https://vimiwegom.weebly.com/uploads/1/3/0/7/130775837/sujirabejumito.pdfIn PDF document text
    • https://medizagokitoni.weebly.com/uploads/1/3/2/3/132303310/c558058877e76a9.pdfIn PDF document text
    • https://madovokego.weebly.com/uploads/1/3/1/4/131409717/5524636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365613/normal_5f876146bc786.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368221/normal_5f87b43d22a6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366005/normal_5f88ba488623b.pdfIn PDF document text
    • https://site-1040988.mozfiles.com/files/1040988/30426881272.pdfIn PDF document text
    • https://site-1036719.mozfiles.com/files/1036719/31014695455.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366351/normal_5f873639e2d0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366398/normal_5f8710c78be75.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/ff23c8d9-781c-48c1-9f51-fb4926d27f4a/1285326016.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c720c8d3-608f-47a0-a395-c1eaf9a72bc9/kutebagokifofaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/100738fc-1554-4462-97bc-84147c19f5a5/xedigepanab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da31aece-d038-4d6e-b5f7-688f7daee71b/60467205239.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88fb6cc0-957c-4f69-9884-66894389c4b6/varotoronaju.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001cb1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CB1F 5104 bytes
SHA-256: 9c688681a092f2660826cc6484a52b1fd9d7489843f5bcddda563425a2db2327
font_01_sfnt_off0001dc82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DC82 16624 bytes
SHA-256: 05a4237ec6b13c2e648f741211e06ce83309bae0b2d73fb51e6178e26d747425
font_02_sfnt_off00020f0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20F0A 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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