Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e31f0f096980cb6…

MALICIOUS

PDF

94.4 KB Created: 2022-05-01 23:49:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 305a5fba66c56a53a834276afe45dc36 SHA-1: b77d064e531fe468973ef9ad01c643ae4c4d3173 SHA-256: 4e31f0f096980cb6a3c67beb28f8e0317680407dfb3f7375a5360bc998c40736
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://yubit.co.za/YmrXLWy8?keyword=html5%20rich%20text%20editor%20example PDF link annotation
    • https://ledomibab.weebly.com/uploads/1/3/4/8/134858948/zolugobenakedaxop.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/16939970647.pdfIn PDF document text
    • https://lenimupet.weebly.com/uploads/1/3/4/0/134013040/tegaxareg-sanabumagaruvo.pdfIn PDF document text
    • https://ragedoxe.weebly.com/uploads/1/3/0/8/130873846/28e5cdfce42437.pdfIn PDF document text
    • http://vintagesilverrose.com/admin/ckeditor/kcfinder/upload/files/95878012296.pdfIn PDF document text
    • https://www.netcorp.hu/data/editorfile/zodimeweteki.pdfIn PDF document text
    • http://faceti.es/fil/ckFiles/files/dibijeraputiwolaxe.pdfIn PDF document text
    • https://niwosegebopusa.weebly.com/uploads/1/3/4/5/134583118/fa593e691913a76.pdfIn PDF document text
    • http://nevacomposites.com/public/kcfinder/upload/files/vumebetomubenanupelifoti.pdfIn PDF document text
    • https://fofodetojadab.weebly.com/uploads/1/3/4/4/134444693/3d892f05.pdfIn PDF document text
    • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/a4df8f4c2c8979e225e23889fb40e708/23448731648.pdfIn PDF document text
    • http://4seasonstours.in/userfiles/file/85289280656.pdfIn PDF document text
    • https://pibogexo.weebly.com/uploads/1/3/4/6/134649935/660727f5bc.pdfIn PDF document text
    • https://duxupapumi.weebly.com/uploads/1/3/1/8/131856851/0658aa697ea.pdfIn PDF document text
    • https://jomigotub.weebly.com/uploads/1/3/4/7/134748998/lodirogolebatoputun.pdfIn PDF document text
    • https://riwumoba.weebly.com/uploads/1/3/5/9/135965326/7781815.pdfIn PDF document text
    • https://amatnieks.com/pictures/image/zasojalowa.pdfIn PDF document text
    • http://forglory.cz/ckfinder/userfiles/files/74545624548.pdfIn PDF document text
    • https://bipozoxadedisaj.weebly.com/uploads/1/3/1/1/131164124/kubisasi_vutoge_latisez_xunuzolimis.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f65c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF65C 17788 bytes
SHA-256: 6dd6fdb343ca1f3494a0cecf182d4d481ae30e690fc3b059343b2bbf06b7c44b
font_01_sfnt_off0001250f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1250F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013d26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D26 10732 bytes
SHA-256: 594e5a59b3b40008f275d6c12f99a1f6b23efe7bc277f046e9b4e544a2891639
font_03_sfnt_off000155c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x155C5 16164 bytes
SHA-256: fd494554c7a7a2c4488382a78096c535ff133766c7221992be4f6a58596b2467

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