Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7259a06b2745db…

MALICIOUS

PDF

85.6 KB Created: 2021-07-06 13:07:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 3573e84f679bc707c22162ddef41c3d3 SHA-1: 40531cc64bfff5343f385fa1f0a8c76a7214877b SHA-256: cd7259a06b2745dbc6a0c17003e3fc0e9e2f23cfad2fecacf3577b94bc14513a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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://assushop.com/userfiles/assushop.com/file/zebiwuputa.pdf In PDF document text
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/gm8t2j9td6jjs4e9vpfu7l3g63/wojeturipusejabasizurak.pdfIn PDF document text
    • http://akinmedical.com/uploads/file/dozuwu.pdfIn PDF document text
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/4040daaf470eb0792560ff344de40921/59597185695.pdfIn PDF document text
    • https://nakipoglugroup.com/upload/ckfinder/files/37846826682.pdfIn PDF document text
    • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/16076da0c03425---37955843149.pdfIn PDF document text
    • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/kimagi.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/dofinotez.pdfIn PDF document text
    • https://zlato-eu.cz/upload/files/79218827698.pdfIn PDF document text
    • http://cuatro-pr.org/sites/default/files/file/vojevunerijunipugu.pdfIn PDF document text
    • https://netshopnepal.com/userfiles/file/reram.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16080672fd4d04---lalase.pdfIn PDF document text
    • http://lifemartrealestateconnect.com/wp-content/plugins/super-forms/uploads/php/files/74fklqna9hf8cfhjn02ai975h4/zikopezolufaz.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609c3e051bf75---38381634350.pdfIn PDF document text
    • http://t-p-fortune.com/userfiles/file/25527071037.pdfIn PDF document text
    • http://jkbprivateiti.com/userfiles/file/33060066787.pdfIn PDF document text
    • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/fehm7ot7u5gthn7seke8d0gcj5/rojofoz.pdfIn PDF document text
    • http://ibiforstarlight.org/clients/3/3c/3cfcca4e360ca8807b7dd7d6e7cbeae0/File/zojovajologowutewin.pdfIn PDF document text
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a15b545235b---rabupekepegisejiri.pdfIn PDF document text
    • http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/fobisepaxawiwofajudid.pdfIn PDF document text
    • http://diclenakliyat.com/userfiles/file/91560431692.pdfIn PDF document text
    • https://widepolymers.com/userfiles/file/zobetorozujosabobugo.pdfIn PDF document text
    • https://dalnoboy.com/data/filestorage/upload/files/74356987026.pdfIn PDF document text
    • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e19082b3384---73925479305.pdfIn PDF document text
    • http://tms-operation.com/upload/files/wasikumizedapimukaze.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=find+the+equation+of+the+line+that+passes+through+the+following+two+pointsPDF 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_off0000eb3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB3C 11088 bytes
SHA-256: cde7ea5af04cd57dea146f792d20d967ea02dbc25cb4a57261ff7f2f23bddcc7
font_01_sfnt_off0001047f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1047F 16852 bytes
SHA-256: ec1cf82712029af2f6c1c3a890fdb474a357bbd072bbf83c420f7f875799774e
font_02_sfnt_off00013025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13025 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1