Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d81714397e3c555…

MALICIOUS

PDF

45.3 KB Created: 2020-10-23 12:00:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 11d2aa84da294d5412789b4c71c882d3 SHA-1: eb924645a90cf66ec1045ee56df5aca3b4415ce1 SHA-256: 5d81714397e3c55565ca0d58b8c0f291957ac4e857f4ed988857dcd59ff6559d
184 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.
  • 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/wb?keyword=gejala%20herpes%20genital%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369310/normal_5f8b536f47c54.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393791/normal_5f923f34eee1b.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/8276696.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/biguxijajojaril.pdfIn PDF document text
    • https://dajapofijakaf.weebly.com/uploads/1/3/4/2/134266914/b88b0aecbbe2.pdfIn PDF document text
    • https://zalawevovupat.weebly.com/uploads/1/3/0/9/130969727/pugezotumakagorus.pdfIn PDF document text
    • https://leruzifu.weebly.com/uploads/1/3/2/3/132302941/1839c51.pdfIn PDF document text
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/4169262.pdfIn PDF document text
    • https://zizuralozirufu.weebly.com/uploads/1/3/1/4/131483034/mesole_gulenixatadi_mapaxere.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/runemevurexuziwone.pdfIn PDF document text
    • https://melegejisud.weebly.com/uploads/1/3/1/3/131379421/nomezojoga.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/70858889-64c4-4a62-bc9b-409a85e4d2e8/14057632198.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6a047a1-f653-4e18-9d61-c8f6d36f0691/77096641968.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a854c69-a0a8-424a-983f-63c6fd41529e/lupomisutazedili.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/514c05c3-9a81-4bad-bcf2-0bd80f569e6f/olympus_endoscopy_reporting_software.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/392a88ca-d287-4e7c-8572-7858ea222763/12779085062.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcd6af70-89f6-419c-9cd8-5b0beebf5268/wenogidufafotarolijowov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a19ca7d-5e15-43e3-8664-c1aecb1d30cf/fubupojoradire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b040bb2-c2bd-4e8d-8e90-81eed003fef2/pathfinder_roleplaying_game_advanced.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5e04a1b-a794-4fb5-bb6c-3a5f131d3dd3/xotufobesu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76f95a93-f376-4638-a51e-ef6283ce2895/gifowobiguli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70ec5627-2139-4cca-96ba-93e2791bdf1f/87632167886.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_off00007097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7097 5412 bytes
SHA-256: e7986bc97dcab221d5c50d1a6c72cd1f3c85512cb81ab7cf5ad98c4d527471f3
font_01_sfnt_off000082fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82FC 10396 bytes
SHA-256: 0befa12b3c601931417829dfd24628fbf43915b2fe66539c1327100c724ca406

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