Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd79f5d9b17e942b…

MALICIOUS

PDF

69.0 KB Created: 2022-01-20 18:06:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 3bc10188deb199afbba8908767bafb8e SHA-1: 0ba62e4e3916ac9efeedb634d51113b80779955d SHA-256: cd79f5d9b17e942bc6d48ab75b24eb59820a25b53e667b3f3ed5e99d088fbbc7
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9837

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 https://pixomot.ru/uplcv?utm_term=digital+multimeter+dt9205a+manual PDF link annotation
    • http://connectcontrol.net/files/userfiles/files/39484192341.pdfIn PDF document text
    • http://www.oomewatersport.nl/upload/files/84403166557.pdfIn PDF document text
    • http://pepinieres-soupe.com/userfiles/file/50524853660.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1619ff734a46b6---zenisufe.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/161b3393a81d49---vejozigojasi.pdfIn PDF document text
    • http://honderhotel.com/UploadFiles/FCKeditor/20210915233710.pdfIn PDF document text
    • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/16151235a53abf---77143065247.pdfIn PDF document text
    • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/1614ad08c28d0a---duduranofufodi.pdfIn PDF document text
    • https://myshalewell.com/userfiles/file/garolebenafogarol.pdfIn PDF document text
    • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/399f70f6edab263a5949f038049f9b14/89595664131.pdfIn PDF document text
    • http://cascad-trans.ru/files/56514008203.pdfIn PDF document text
    • https://vnsteeldetailing.com/UserFiles/files/63341957507.pdfIn PDF document text
    • https://washlounge.in/ckfinder/userfiles/files/95569061693.pdfIn PDF document text
    • https://possamaiferramenta.it/uploads/file/vuvotuwirevibugakuliwid.pdfIn PDF document text
    • http://aven.su/kcfinder/upload/files/pogudaguxunenufasipilen.pdfIn PDF document text
    • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/2b7e86ee43f3625bea9bc4671be47827/dunanerididabufisikuka.pdfIn PDF document text
    • http://gaytonfa.com/upload/files/95650193177.pdfIn PDF document text
    • http://kxqcgs.net/filespath/files/20210912090910.pdfIn PDF document text
    • http://icoenergia.com/userfiles/files/49482121958.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1618786136b0a9---24450490365.pdfIn PDF document text
    • http://basic-55.su/kcfinder/upload/files/ximunoxaxegutumakil.pdfIn PDF document text
    • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/94d3fe3c8d3883b8f0ba56f03c0a1da2/malimotiledigo.pdfIn PDF document text
    • http://bielle-srl.com/userfiles/files/58992052875.pdfIn PDF document text
    • https://hhwholesaleclub.com/admin/kcfinder/upload/files/jonudunogimosud.pdfIn PDF document text
    • https://recrutare.mapn.ro/admin/ckeditor/kcfinder/upload/files/Modelul%202.pdfIn PDF document text
    • https://bursakaynak.com/userfiles/file/16310046899.pdfIn PDF document text
    • http://123podkrovie.sk/editor_uploads/files/mutavutaximemusuxotul.pdfIn PDF document text
    • http://kaies.net/upfiles/211228065539907037x2zppe.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_off0000ab11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB11 10948 bytes
SHA-256: 410de7030e404462a8b286e59a72fac59647e217da3b9299e5e2896e6ce76a1c
font_01_sfnt_off0000c44e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC44E 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000daed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAED 16676 bytes
SHA-256: 68e1cf82f1be1d1454bd267f30836c251a6b260534e487fc0b38916b72d1ace9