Malicious PDF — malware analysis report

Static analysis result for SHA-256 62403ed164e9a31a…

MALICIOUS

PDF

84.3 KB Created: 2021-08-15 22:51:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: 76542d54c46b1b5d125d572721fbbed5 SHA-1: 52f936ac871e6c8941dd4617a84e87d33f19347a SHA-256: 62403ed164e9a31ab4d4eb17b85ca0811b0c9a2cbd36bc0210a0810f212ad892
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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://commune-bourre.com/userfiles/file/pizegisof.pdf In PDF document text
    • https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/5tnrjboop5q6mf88ddn4tkro7p/zedanopukuzafimozamijafis.pdfIn PDF document text
    • https://sarvodayasamaj.uk/upload/files/77989753104.pdfIn PDF document text
    • http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607797a43b5ad---buwodi.pdfIn PDF document text
    • https://leanuslab.com/UserFiles/file/43223312790.pdfIn PDF document text
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5bfd3416c---sasuluzosag.pdfIn PDF document text
    • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d0bc9ec5eda---lawufevofagunowebugekone.pdfIn PDF document text
    • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/b8r7jhoqe1pioa7cil40o6aqav/76381584934.pdfIn PDF document text
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c68b63bf81c---jizibekafuseg.pdfIn PDF document text
    • http://wawa757.com/uploads/files/melegivupa.pdfIn PDF document text
    • http://www.dramayaramendes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607becc7e71eb---5246935730.pdfIn PDF document text
    • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160844cd9e8e66---xofixatibezikix.pdfIn PDF document text
    • https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/cmcetv7mq709fjr8t3p14gm75a/92162332183.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074fe38b0506---31835097925.pdfIn PDF document text
    • https://fanaf.comarticle_ressources/file/94579023043.pdfIn PDF document text
    • http://red-persimmons.com/upfiles/editor/files/97806611797.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/d0ca8ef3ed5140a6fb3ea512c2584e41/nigisunewokufozetudifus.pdfIn PDF document text
    • https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d3776c0d513---79268895838.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609dae12652ce---86065512225.pdfIn PDF document text
    • https://rlmahtani.com/userfiles/files/23779053008.pdfIn PDF document text
    • http://haozuowenwang.com/imagefiles/file/jerekewusaxomet.pdfIn PDF document text
    • http://grafichesirio.com/userfiles/files/dumosuzesuwajipej.pdfIn PDF document text
    • http://audidalys.lt/ckfinder/userfiles/files/nigiwe.pdfIn PDF document text
    • https://wronba.pl/uploads/wysiwyg/file/89722048532.pdfIn PDF document text
    • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/37b49e8314e92655a0a4a7049eaa7f6f/37513993799.pdfIn PDF document text
    • http://xoblates.com/clients/e/e0/e08cfb93fb97b00c28394d0532709dc9/File/62665119119.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=zombie+sniper+evil+hunter+mod+apk+unlimited+gold+and+moneyPDF 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_off0000def7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF7 11316 bytes
SHA-256: 481d7fb8a0dead5dc3710cb1694e7640b3343d73bf79647de92ce3e3d5ac4d74
font_01_sfnt_off0000f8fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8FA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001110c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1110C 20292 bytes
SHA-256: 3ef7be2baf40759a6764fe0c844a73d4657dd01c5cd32a4db1a1352c6931b175