Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ef0857e1263111…

MALICIOUS

PDF

347.3 KB Created: 2022-03-01 06:34:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: e221461ab24423744773236974abb08d SHA-1: de6be0ce10d319d6042b09df147abf0836c5cc43 SHA-256: d3ef0857e126311198b81f4225c2d0cdf8fbc9f15908fbfa25463cde2716d5c2
142 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6543

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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://colod.co.za/XSRYdR1H?utm_term=bailaras+movie++filmywap PDF link annotation
    • https://www.nasasquirrel.org/kcfinder/upload/files/44344251738.pdfIn PDF document text
    • http://bridgeonlaw.com/filespath/files/20220205010631.pdfIn PDF document text
    • https://promenade-perpignan.com/userfiles/file/62085512348.pdfIn PDF document text
    • http://montazenabytkupraha.cz/files/file/biwezanugaligiwuzazolu.pdfIn PDF document text
    • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/ce0b57aba2ab94f410126bc6f5100c34/42229206721.pdfIn PDF document text
    • http://saoz.sk/assets/kcfinder/upload/files/nubuzinanalutelufoz.pdfIn PDF document text
    • https://decoveinvestment.com/userfiles/file/lalarejomukakojagumimi.pdfIn PDF document text
    • https://admin.gruppoperonirace.it/kcfinder/upload/files/dugudanegetovogumiruj.pdfIn PDF document text
    • http://icon-studios.com/userfiles/file/fudixifemoxomumorevufeda.pdfIn PDF document text
    • https://poetnazrul.com/kcfinder/upload/files/46456690669.pdfIn PDF document text
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/99e13e0137a5484cc4cba832f9507d19/zenol.pdfIn PDF document text
    • http://np-laser.com/upload_fck/file/2022-2-11/20220211114927209508.pdfIn PDF document text
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216d06a235bf---zejatojad.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1620bc33690672---5599416182.pdfIn PDF document text
    • https://mastirz.com/userfiles/files/bisoz.pdfIn PDF document text
    • http://h-n-s.net/userfiles/file/86807799716.pdfIn PDF document text
    • http://xn--80aafbkbafwdti1ahihccrg.xn--p1ai/pict/file/70647645355.pdfIn PDF document text
    • http://textingrights.com/userfiles/files/josenejeneneritaxo.pdfIn PDF document text
    • http://radiopoint.cz/userfiles/file/86482852000.pdfIn PDF document text
    • http://falcon.dk/sites/default/files/webfm/wunatilarozelos.pdfIn PDF document text
    • https://eyetracking.pl/userfiles/file/tirodulitevani.pdfIn PDF document text
    • http://tratyfa.com/public/ckeditor/kcfinder/upload/files/49358927769.pdfIn PDF document text
    • http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/qjnkpu256crori3leeic5ord5f/navepujepi.pdfIn PDF document text
    • https://talaa-obour.org/webmisr/uploadwebmisr/file/81412348611.pdfIn PDF document text
    • http://harnettcountyhba.com/userfiles/file/bugodutoxuwenegan.pdfIn PDF document text
    • http://bcma.com.bd/backend/web/kcfinder/upload/files/17731826825.pdfIn PDF document text
    • http://elcastillotucentrotextil.com/imagenes/contenido/files/60500528050.pdfIn PDF document text
    • https://tavfelugyelet.megujuloenergiapark.hu/admin/ckfinder/userfiles/files/tofoboviwuzisorofometu.pdfIn PDF document text
    • https://kalafiber.com/webroot/js/ckfinder/userfiles/files/4275572739.pdfIn PDF document text
    • http://eprl.korinthos.uop.gr/openwebquest/ckeditor/kcfinder/UPLOAD/files/vagijulize.pdfIn PDF document text
    • https://sgpm.krakow.pl/aaeventy/kcfinder/upload/files/jivuguzoturewureguz.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_off0004f8f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F8F0 10636 bytes
SHA-256: 065b4f6a7a1378ea02cbc4093793c6fce02cd65969caf055272b52f5f520f642
font_01_sfnt_off00051162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51162 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005287d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5287D 20252 bytes
SHA-256: 2cae6d63816b543a1ec684a441b77234aaca3060d3f37c3583023bcc5b9d2eef