Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e38dde475df9973…

MALICIOUS

PDF

82.6 KB Created: 2021-08-31 09:21:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 65dc1eff9ec06ff51a38715496e8d54c SHA-1: 7ab32fddabac70c505ef7ec439ae7f848a00633b SHA-256: 4e38dde475df99736fb38350552810b23c2d11cbafd774e038b09a8847df2982
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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.
  • 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.
  • 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://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/d9d8999a82151d4ad2b5d055daf52f30/89168461136.pdf In PDF document text
    • http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/38837537823.pdfIn PDF document text
    • http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/nuwame.pdfIn PDF document text
    • http://www.alexgis.com/siteuploads/editorimg/file/97321644979.pdfIn PDF document text
    • http://ersatzmonitor.de/userfiles/file/30915344649.pdfIn PDF document text
    • http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/97437825396.pdfIn PDF document text
    • https://pointvirgule.ca/upload/editor/file/kuwetujogadipofe.pdfIn PDF document text
    • http://asvpp.fr/pdf/47462777968.pdfIn PDF document text
    • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/af9e83888adc3abaa7711a36328fe1ba/51051462103.pdfIn PDF document text
    • http://jafra-com.at/userfiles/file/gusetaguxejobo.pdfIn PDF document text
    • http://www.prctech-th.com/ckfinder/userfiles/files/2041886494.pdfIn PDF document text
    • https://betentour.com/sites/default/files/file/lomulemudarajegamorol.pdfIn PDF document text
    • http://www.firstpages.eu/app/webroot/files/userfiles/files/lozutobisevudipefe.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16080672fd4d04---lalase.pdfIn PDF document text
    • http://pathtojanna.com/userfiles/files/38825097437.pdfIn PDF document text
    • http://shssailors1969.com/clients/3/36/366f78b21138e0f8005dfe6cc5e09e30/File/pegabigevul.pdfIn PDF document text
    • http://cafemsoffice.com/userfiles/files/janifazetexanabimuvefoj.pdfIn PDF document text
    • http://guowangcable.com/d/files/28741578834.pdfIn PDF document text
    • http://docando.es/js/ckfinder/userfiles/files/62203544691.pdfIn PDF document text
    • http://chieucoingason.vn/files/gufutasewixes.pdfIn PDF document text
    • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0c3b833844f6b3d1415b34c7ad2b7ddf/gokuf.pdfIn PDF document text
    • https://www.qlsny.com/wp-content/plugins/super-forms/uploads/php/files/18be434cb3d92841b317a80a7f6fcc72/salimilazaluxemanup.pdfIn PDF document text
    • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160f20c506f0bc---golepofidapidonuja.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=inxs+girl+on+firePDF 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_off0000dde4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f5fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5FB 10180 bytes
SHA-256: ec2f5ef00c8aa773f7841e25f929414d4de8cce2b301985b185a7d3d8f319cb8
font_02_sfnt_off00010cd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CD6 18460 bytes
SHA-256: 3a0e737fa007703a66dc2137d4cf61ab7ef0cee9239287bc44283e14c77d9ec9