Malicious PDF — malware analysis report

Static analysis result for SHA-256 78245b5d4bbe03c5…

MALICIOUS

PDF

75.8 KB Created: 2021-10-14 01:01:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: a26a23ccfb3a1e7ab85e101e12d2d647 SHA-1: 39ec8153397d553ee3f9f646ffa78fca47a760b9 SHA-256: 78245b5d4bbe03c5604e5538fdd548578b3c6b7a0e0e8c4d6c80cfa38cf5c6f9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 5

  • 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 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 http://ccsctda.com/ckfinder/userfiles/files/20210917_130918.pdf In PDF document text
    • http://aligokdemir.com/resimler/files/99403488990.pdfIn PDF document text
    • http://seasonsblinds.com/uploads/ckfinder/userfiles/files/gewavevekejetesasovapig.pdfIn PDF document text
    • https://rdw-wolf.de/backend/ckfinder/userfiles/files/26568779327.pdfIn PDF document text
    • http://uhorder.com/upload/files/pezugikiki.pdfIn PDF document text
    • http://tongrentangthai.com/UserFiles/file/zoviwusemudoxerilisumov.pdfIn PDF document text
    • http://tutaylamhet.com/storage/ckfinder/files/pigelowojaresuxisufuradi.pdfIn PDF document text
    • http://madinagirls.com/easydo%20v2.00/files/uploads/vigujalivazatupemuxewaj.pdfIn PDF document text
    • http://poltinik.ru/userfiles/file/nagejikopedetutam.pdfIn PDF document text
    • https://gregoryshow.ru/files/file/18303607662.pdfIn PDF document text
    • http://vsevolozhsk.mebel18.com/uploads/files/70776764382.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613b71aaa5916---66749615047.pdfIn PDF document text
    • https://thaodienland.com/fckeditor/editor/filemanager/connectors/php/temp/file/vowomajirurirodirubase.pdfIn PDF document text
    • http://smartwealthhk.com/userfiles/3469465817.pdfIn PDF document text
    • https://angkaindaman.com/contents/files/61295040277.pdfIn PDF document text
    • http://itkaufmann.com/images/fckimages/file/14759665617.pdfIn PDF document text
    • http://bakefruit.com/uploads/files/202110121901059070.pdfIn PDF document text
    • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab0726af97---35049003902.pdfIn PDF document text
    • https://kolkataangikar.org/ckfinder/userfiles/files/51553290935.pdfIn PDF document text
    • http://studiotrusso.it/userfiles/files/60556225977.pdfIn PDF document text
    • http://cameragiaminh.com/upload/files/41734961200.pdfIn PDF document text
    • http://findusafranchise.com/files/files/wamovonalufafomoxen.pdfIn PDF document text
    • https://irish-setter-zucht.info/ckfinder/userfiles/files/jexobigoravedopekifetopal.pdfIn PDF document text
    • https://jungleflightchiangmai.jungle-flight.com/Uploads/files/27566771581.pdfIn PDF document text
    • https://braveathlete.net/geektic/files/gaxamudek.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/xPAns0MRe5M/uplcv?utm_term=who+wrote+the+old+testament+in+the+biblePDF link annotation
    • 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_off0000c320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC320 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000db37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB37 10732 bytes
SHA-256: d79d7ec25841acf9f865bedc0f22eebc58875bc48f904e6157c1117fffb3346f
font_02_sfnt_off0000f3b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B7 17716 bytes
SHA-256: cb0ffef04a6a4c9f0cac481bf019d7491c6abd727037903c9ad2a64327d2da15

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