Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd799f22a85a1441…

MALICIOUS

PDF

76.8 KB Created: 2022-04-10 07:36:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 8936a89d563e8b72de544533d0712b10 SHA-1: 7650e4909f36db42eb6a7359c94572beda8084e7 SHA-256: cd799f22a85a1441adfd6c5b1d372c28abd9e69290b5719e148266bfc147693c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://sunuf.co.za/YmrXLWy8?keyword=caracteristicas%20de%20los%20modos%20de%20produccion%20comunidad%20primitiva PDF link annotation
    • https://kexogufonijer.weebly.com/uploads/1/3/4/6/134612909/6685303.pdfIn PDF document text
    • https://ipekyolumedya.com/resim_galeri/file/kusatek.pdfIn PDF document text
    • https://valofapapedor.weebly.com/uploads/1/3/1/1/131164243/e6d709.pdfIn PDF document text
    • https://zosafuwevuki.weebly.com/uploads/1/3/4/5/134524468/momujenu_sodivezip.pdfIn PDF document text
    • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/161fe39a78e0f4---wikep.pdfIn PDF document text
    • http://chataphan.com/file_media/file_image/file/penifipo.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/162016abc594ce---32563210004.pdfIn PDF document text
    • https://nedisixikimu.weebly.com/uploads/1/3/7/5/137511189/xevegadibekot.pdfIn PDF document text
    • https://fodevasuliweka.weebly.com/uploads/1/3/4/6/134657172/429d8e41b0d32fc.pdfIn PDF document text
    • https://xovokemuzulu.weebly.com/uploads/1/3/4/7/134703915/fajul.pdfIn PDF document text
    • https://mosejibufo.weebly.com/uploads/1/3/4/4/134437632/nesopubuno.pdfIn PDF document text
    • http://metabolit.ru/files/file/51098895683.pdfIn PDF document text
    • https://posodukur.weebly.com/uploads/1/3/4/3/134347560/fojoxanelivoti.pdfIn PDF document text
    • https://cebrigantina.com/025-CEB/images-editor/file/bogezopixulibigobakideri.pdfIn PDF document text
    • https://sugogovofel.weebly.com/uploads/1/3/1/0/131069978/fojagez_vejeg_gisaboji.pdfIn PDF document text
    • https://domainedulacstellan.com/admin/kcfinder/upload/files/xiwagawuvebuligujijozefe.pdfIn PDF document text
    • https://rukatopuwor.weebly.com/uploads/1/3/1/1/131164291/sigevodobumilepi.pdfIn PDF document text
    • https://rivirabuxi.weebly.com/uploads/1/3/4/6/134699302/lifuxim_tomolezilorigan_lefikupitif.pdfIn PDF document text
    • http://muzeumkonstancina.pl/attachments/file/32102757475.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c557.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC557 10872 bytes
SHA-256: 081e4a07f3d4d3e2b3d46400507d34cd265e0f1eb0046cdb2201d0e73687ccbc
font_01_sfnt_off0000de75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE75 17648 bytes
SHA-256: 60f013117fccbb8b48725f3e6e4ca46499f098ad0c070623dd1f7faa09d74c3e
font_02_sfnt_off00010b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B3D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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