Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7a18f3cf64032a…

MALICIOUS

PDF

79.8 KB Created: 2021-11-16 06:28:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: a4002056da660c501fb0d6d046953ac9 SHA-1: 3a84d60c392c66ff8ebb75044189d0caba0a8f0c SHA-256: cd7a18f3cf64032ab44069e82c7aa18936461469e4d0303bf8e0bc0274590e30
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9917

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xedaptheduc.net/app/webroot/uploads/files/dumemakubagemulejosoj.pdf In PDF document text
    • http://urotunisia.com/uploads/FCK_files/file/pajadilapakizerivo.pdfIn PDF document text
    • http://gibisch.com/files/files/13894640942.pdfIn PDF document text
    • https://pensiuneavalentina.ro/app/webroot/file/53069855887.pdfIn PDF document text
    • http://wmsone.com/eimages/file/22514597955.pdfIn PDF document text
    • https://klcmekatronik.com/ckfinder/userfiles/files/90691798075.pdfIn PDF document text
    • https://hopclickhospitality.com/scgtest/team-explore/uploads/files/50533898634.pdfIn PDF document text
    • https://ntc-container.com/upload/files/41812551261.pdfIn PDF document text
    • http://express-service-auto.fr/ckeditor/ckfinder/userfiles/files/metok.pdfIn PDF document text
    • https://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/kunidilenobakufikenuko.pdfIn PDF document text
    • https://theelementrama9.com/userfiles/files/25015888895.pdfIn PDF document text
    • http://wib24-admin.de/uploads/file/kukigirodiburuzekifadila.pdfIn PDF document text
    • http://ferien-in-zahren.de/images/file/rofodadavonu.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/16161e7e4015ce---mukuburisarorujejoz.pdfIn PDF document text
    • https://heyratacademy.ir/file/pasoromodazesolu.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615d08c178635---mexuzob.pdfIn PDF document text
    • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/de42913ddbfadc6fd941c66fff27f5a7/vafoledobuboxa.pdfIn PDF document text
    • http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/16170d0ca9ea95---nilideruta.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16192e7f061f03---85264610313.pdfIn PDF document text
    • https://hyundainhapkhau.vn/upload/files/fosiratamotifufo.pdfIn PDF document text
    • http://okvin.org/userfiles/file/vezujukikirasatozoveriz.pdfIn PDF document text
    • http://dreamsurgerycn.com/ckupload/files/xokuwonadap.pdfIn PDF document text
    • http://www.tobywells.org/media/fckdir/file/gafebajovunosowadusibosi.pdfIn PDF document text
    • https://efsanepin.com/calisma2/files/uploads/mubudukinowutimonilekikis.pdfIn PDF document text
    • http://vwtint.com/userData/board/file/7255803975.pdfIn PDF document text
    • https://mimpiindah2.com/contents/files/jolesamekuwivutevawoleraz.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/BGAemAmcdTc/uplcv?utm_term=common+factors+of+60+36+and+48PDF 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_off0000d112.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD112 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef
font_01_sfnt_off0000e833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE833 17920 bytes
SHA-256: 7d83d2cad9ab6c58bebe0718492cba226d5f744e8b6494c1be77120dcaa980ed
font_02_sfnt_off000116dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116DC 11148 bytes
SHA-256: e0b8fdf90f5623dc759b1aaca65ef863c5e6ce6acd54703f09a3ab026e104df1