Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a103c7ded484330…

MALICIOUS

PDF

108.5 KB Created: 2022-03-08 11:14:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 49955bd105854b8cd5606080c12a60a4 SHA-1: d80b88ceec0e1dc6fa4233d287832cf262667f37 SHA-256: 5a103c7ded484330d923a5541bd42b99900dc360843e6859b2a7fad90db29ac8
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9828

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://lazav.co.za/XSRYdR1H?utm_term=lo+safar+baaghi+2+song++tinyjuke PDF link annotation
    • http://olsztyntransportmedyczny.pl/userfiles/file/30044649887.pdfIn PDF document text
    • http://elskup.pl/images/assets/file/46085414477.pdfIn PDF document text
    • http://ageddfjtj.pretty-match.com/upload/files/73971589285.pdfIn PDF document text
    • http://denizyemek.com/images/fck_upload/file/miburitasukijupaxox.pdfIn PDF document text
    • http://nesemlak.com/test/images/uploads/files/57345883933.pdfIn PDF document text
    • https://szemere-iskola.hu/images/files/57221197579.pdfIn PDF document text
    • http://isvpro.com/custom/files/vexinebibonilifu.pdfIn PDF document text
    • https://fototipia.hu/files/files/89029197011.pdfIn PDF document text
    • https://studybrilliant.online/app/webroot/img/userfiles/file/30618812095.pdfIn PDF document text
    • http://healthmindsacademy.com/admin/ckeditor/kcfinder/upload/files/dodeg.pdfIn PDF document text
    • http://nextgenship.net/upload/file/20220216164500365025.pdfIn PDF document text
    • http://fotostudiovaccari.it/userfiles/files/wotokugesepodiwuvuruwe.pdfIn PDF document text
    • https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/vfl1cp6ptca90smr7sq8qb8qp9/pebupezapa.pdfIn PDF document text
    • https://edcasys.com/ci/userfiles/files/vavutumiwebu.pdfIn PDF document text
    • http://insuralead.com/userfiles/file/kejikufavimakatewoxupi.pdfIn PDF document text
    • http://huijingweb.com/upload_fck/file/2022-3-4/20220304111844134097.pdfIn PDF document text
    • http://rivebistro.net/ckfinder/userfiles/files/70423935300.pdfIn PDF document text
    • http://upservice.expert/admin/ckfinder/userfiles/files/kinelox.pdfIn PDF document text
    • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/162042b7d95482---tariwasokegizux.pdfIn PDF document text
    • http://www.studioamorosi.com/notizie/allegati/tavipivirakuxijalatovon.pdfIn PDF document text
    • http://harmony-lazienka.pl/Upload/file/33484209805.pdfIn PDF document text
    • http://cosmosartinteriors.com/kcfinder/upload/files/fujawudedigedowukoga.pdfIn PDF document text
    • http://kirsanov-maslo.ru/uploads/sowinide.pdfIn PDF document text
    • https://autopsrus.com/ckfinder/userfiles/files/voxuwusulakulaxizagir.pdfIn PDF document text
    • http://francescasciortino.it/userfiles/files/88307872377.pdfIn PDF document text
    • http://mimarathi.live/assets/ckfinder/core/connector/php/uploads/files/28592949753.pdfIn PDF document text
    • https://vajdasaraegyesulet.hu/kcfinder/upload/files/75928106752.pdfIn PDF document text
    • http://rallyteamwalraven.nl/file/74676762766.pdfIn PDF document text
    • https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/036c5149881a5b85b0886a2fc21f17fc/karadamusuzuvaxana.pdfIn PDF document text
    • http://elskup.pl/images/assets/file/lewaselapotozado.pdfIn PDF document text
    • http://michalpavlicek.com/uploaded/file/bijiruduvebin.pdfIn PDF document text
    • https://karolinanowak.com/userfiles/file/xanipina.pdfIn PDF document text
    • https://delphin-restaurant.com/ckfinder/upload/files/fikonetukesa.pdfIn PDF document text
    • http://orthocarecentroortopedico.it/userfiles/files/xepefuditukozur.pdfIn PDF document text
    • https://tedvandergulik.nl/userimages/file/95005671755.pdfIn PDF document text
    • http://3gr-group.com/ci/userfiles/files/redakudukebopa.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_off00014229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14229 11100 bytes
SHA-256: c662847bd1253a2c759739a2ae168d4d72c9139bf6f73968e92f66ca214aadf1
font_01_sfnt_off00015c15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C15 18704 bytes
SHA-256: daea051c18a2058fc6ed1e3fa5921280a09bd1fe1c5f9755351ccd2858d87176
font_02_sfnt_off00018bfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18BFC 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9