Malicious PDF — malware analysis report

Static analysis result for SHA-256 1914fb5e9b8be572…

MALICIOUS

PDF

44.4 KB Created: 2020-10-15 13:55:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 26af4b303d50fda81d577f7f7cfee752 SHA-1: 81ad294bc987480aca89235e12443f2e7e5a91f7 SHA-256: 1914fb5e9b8be57200c0359395a080d5efadd290a60cef22fa9747b28103f016
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/strik?keyword=work+motivation+definition+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367268/normal_5f8828644ee18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365656/normal_5f87024294725.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368996/normal_5f879edc1d372.pdfIn PDF document text
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/topexukiguf-nulakekez.pdfIn PDF document text
    • https://xonimitofowe.weebly.com/uploads/1/3/2/6/132682232/1376720.pdfIn PDF document text
    • https://kupugaxome.weebly.com/uploads/1/3/0/9/130969415/09809c.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/10610.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/miputow_fabifeleriga.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/gapovowumepekegosiza.pdfIn PDF document text
    • https://gikanirirexenad.weebly.com/uploads/1/3/0/7/130776133/08d3cbded.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/wogiselaruto-nokage.pdfIn PDF document text
    • https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/1930383.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/5650151.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/lidezane.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/aa92d.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/2cb23fe5-8a57-4cc3-b50e-fee5d2488d5b/jidinese.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6de492b3-2d22-43c3-b4cf-12f65d72d391/64379017907.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e65f9e85-c875-4ffc-88f9-97aa1f684892/gakosuwukatopupakunuvig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1cf1ed1-5714-46c0-8803-070bc02d45a6/minurizo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b810865-6923-4225-a06c-ddbbdc20902d/jilekajanizamuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75894714-99f1-43ba-939a-69bee7b41397/42869405441.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f6792c1-fe47-4af6-ad97-ca4ef1ee1f35/73659244549.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0f9a17b-bbb3-4aff-bee5-8c2082162086/61213133839.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0bfcf324-fd53-42b4-8124-3848a83b4dab/kitelaxuwodozux.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_off000070f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70F5 5116 bytes
SHA-256: 9b0fd399c7224970845baf25d6fc4d9bced7517d0005edfb2c69819049a46c09
font_01_sfnt_off00008255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8255 9828 bytes
SHA-256: b5b507a4c871f90e7b0a538999b13f3242b1b1d3a44df05f10c5e4284d503eb1

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