Malicious PDF — malware analysis report

Static analysis result for SHA-256 d65348d2a8d3371e…

MALICIOUS

PDF

89.9 KB Created: 2021-06-30 02:52:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 0257ec48e2a10894f003fa44802f32fc SHA-1: dc8d8b558829f1aa47bda66dc57c0a7a441711af SHA-256: d65348d2a8d3371e208523d502c75c88b63356d10a6638160b5623501cb2e17d
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which point to compromised WordPress upload storage. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The document's structure as a link farm suggests an attempt to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://fitviewer.de/files/file/10637739130.pdf In PDF document text
    • http://rheinmotel.com/userfiles/file/mivejetutinisi.pdfIn PDF document text
    • https://eminenceconstruction.ca/viking1/uploads/files/pabowatawokadowusu.pdfIn PDF document text
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/de48b02c103fcdcd6413a975f87fb5ba/14745328429.pdfIn PDF document text
    • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c937b9dbd56---54911566941.pdfIn PDF document text
    • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/02o35o914n6lspr21qrtpttd99/18284182101.pdfIn PDF document text
    • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0k1m82mgoj6bvado4n7jfcu3g5/vonedijatosofezivudu.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087f0abb2cbe---savexema.pdfIn PDF document text
    • http://asfus.net/virgsurv/userfiles/file/77306013077.pdfIn PDF document text
    • http://russkiivopros.com/images/FCKeditor/file/nodamujejegimedabukezun.pdfIn PDF document text
    • https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/cbd4c8cf89c53b19d0dba4164e5d0057/wemawemazofisewisewujem.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e053617514---83474523287.pdfIn PDF document text
    • http://yakutiaprime.ru/SITE/files/editor/file/kasodazoxedawox.pdfIn PDF document text
    • http://www.irrv.org/uploads/files/jomisawomewi.pdfIn PDF document text
    • http://fotografiafrancescosomma.com/userfiles/files/92067573304.pdfIn PDF document text
    • http://pozitron-s.ru/userfiles/file/60382641244.pdfIn PDF document text
    • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/nkohmaq445lls99uieibpokmm4/56891947024.pdfIn PDF document text
    • https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/pm4ta5lt8pnfrumdjpg9nnrjvt/tokizixujukobagijubuzufad.pdfIn PDF document text
    • https://malashealthcare.com/userfiles/files/64593928089.pdfIn PDF document text
    • http://jshtextile.com/UserFiles/file///tubaxatob.pdfIn PDF document text
    • https://bodwellassociates.com/wp-content/plugins/super-forms/uploads/php/files/d9ec544a9b8d4afb2ec5786dd840e658/xuzutimilasis.pdfIn PDF document text
    • http://builderall.info/userfiles/file/23198876473.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=modal+verb+could+examplesPDF 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_off0000fbb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBB8 10780 bytes
SHA-256: 6e5b4b0ef44662614c931ce1b7ff8ca3113bedc7f68f8c91721924b9ac8c049e
font_01_sfnt_off00011461.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11461 17568 bytes
SHA-256: 1d1db56789a678f1e56fe79f52c3b37c9e30479a2cb652b1b25d053c72c83133
font_02_sfnt_off00014263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14263 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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