Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afd0398fb6a8ee5…

MALICIOUS

PDF

334.4 KB Created: 2022-02-19 07:25:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: a3484dbaf9cff8e673a58e61d0ee9223 SHA-1: e7133755f55a2d483579db9d7370f14e407271d7 SHA-256: 4afd0398fb6a8ee5aacf805d550d1de7977d67a3b4b6dd6e3aca8a18d12d7746
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7397

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://podar.co.za/XSRYdR1H?utm_term=android+9+disable+encryption PDF link annotation
    • http://kovacsoltvaskerites.hu/images/file/23843666393.pdfIn PDF document text
    • https://tahsindincer.com/upload/ckfinder/files/suwomuzifu.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/0cc64b62635d0c71c6629149cda7c573/nunoroximenumo.pdfIn PDF document text
    • http://unstitchedfootwear.com/files/file/wuwafi.pdfIn PDF document text
    • http://langeline.com/ckeditor/upload/files/15902264298.pdfIn PDF document text
    • http://billagelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/56106023209.pdfIn PDF document text
    • http://cn-biyoute.com/d/files/66563017965.pdfIn PDF document text
    • http://studionegrelli.it/userfiles/files/fikowo.pdfIn PDF document text
    • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/c5a099a29c177d53a022f5e9f5db2a59/45856813684.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/pk6rslja35cj8i8s94jlaoqbo2/moxuzikowozimelagave.pdfIn PDF document text
    • https://quanticabtl.com/cms_2018_quantica/sgi_userfiles/userfiles/files/sutowegidolivuji.pdfIn PDF document text
    • http://xinghui.co/upload/ckimg/files/202108120115429741.pdfIn PDF document text
    • http://birkhoffhi.com/userfiles/files/rapanuxeregudibena.pdfIn PDF document text
    • http://analizmatbaa.com/panel/kcfinder/upload/files/32921367872.pdfIn PDF document text
    • https://tinnituskozpont.hu/files/1159548791.pdfIn PDF document text
    • http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/211105060906323495kgaczs.pdfIn PDF document text
    • http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1619ba2860fe87---satipodu.pdfIn PDF document text
    • http://chothuethietbi.info/img/files/41671032568.pdfIn PDF document text
    • https://biomedchita.ru/imeg_master/file/toveke.pdfIn PDF document text
    • http://progfin.pl/userfiles/file/gamorivalakow.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/3a5be51ab60e5295a219b2ac72e59053/75567005965.pdfIn PDF document text
    • http://mtreurope.com/ckfinder/userfiles/files/kadorigu.pdfIn PDF document text
    • http://flirdining.com/uploads/files/47762751789.pdfIn PDF document text
    • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160e0c2f37851c---5073859630.pdfIn PDF document text
    • https://kltccompany.com/ckfinder/userfiles/files/saniralififijekavima.pdfIn PDF document text
    • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/e259713865c37044ffae37978b33cf57/dataza.pdfIn PDF document text
    • http://ryanoomen.nl/uploadimages/files/jepiwigakavipikutumez.pdfIn PDF document text
    • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615f37e62d367---jagafisanujozebisamidulo.pdfIn PDF document text
    • http://sibleyestateplanning.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xawoxizederomolikiwowibi.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_off0004cab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CAB7 18260 bytes
SHA-256: df34369a80ce5907cf16b5e43429788c0451dcce34db592c6240705a7624e965
font_01_sfnt_off0004fa85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FA85 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000511a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x511A5 10912 bytes
SHA-256: abfc14f56beb8f8d9618984f8e5a3cf6ac3620553067cdb18d429e0d8c1aa599