Malicious PDF — malware analysis report

Static analysis result for SHA-256 434212b1ecf18be0…

MALICIOUS

PDF

115.2 KB Created: 2021-07-21 11:29:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 340b59a0375937583c4fc8b8e38201a3 SHA-1: 2909b3a02cf0fb6d7e3b7c139ebd5d0eaa388208 SHA-256: 434212b1ecf18be0de256ab7486e54cffe5f4f6d2791f801e79119fc091b4e5e
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to compromised WordPress sites, specifically within upload directories. This suggests the document is part of a campaign to host or distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/a7df02e6723658786227c84a0a9297b4/gowibatejekigiwiwu.pdf In PDF document text
    • http://kaowei.tw/image/files/20210615_011212.pdfIn PDF document text
    • http://baloneacessorios.com/_upload/file///97049905073.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160839f9e03a8b---37810794354.pdfIn PDF document text
    • http://biotledlight.com/userfiles/file///womasirobapizokujofom.pdfIn PDF document text
    • https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/259ee3cb184a2012df3d1076095026f2/62480638697.pdfIn PDF document text
    • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a04a796f6fb---10335328182.pdfIn PDF document text
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16093b07331410---tejipotamikunokesik.pdfIn PDF document text
    • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/1fhqabflo0qrcb0ignrpohdttv/zajexorigekefodetapuzukap.pdfIn PDF document text
    • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/5hlvr0ju505vnqpd6ed31jto2o/74828959566.pdfIn PDF document text
    • http://thebeautyofdesign.nl/ckfinder/userfiles/files/jojulivedapip.pdfIn PDF document text
    • http://bonfiremadigan.com/uploads/fckeditor/file/43625422312.pdfIn PDF document text
    • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/45pe8raakfsj6drf07vko2bta3/jopazezozovox.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4f3b007ee4---59554639004.pdfIn PDF document text
    • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16077aeec0898a---nuzukononawobalewado.pdfIn PDF document text
    • https://aprenda-atdi.com/uploads/files/xagaximulexelosis.pdfIn PDF document text
    • http://2ds-creations.fr/userfiles/file/zupawibojojiwitolarami.pdfIn PDF document text
    • https://www.cpro.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16079f9de54083---49519948088.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160c6161b0605b---62254409936.pdfIn PDF document text
    • http://pho32shabu.com/uploads/files/vopezabenukafoburekunu.pdfIn PDF document text
    • https://chefinhogourmet.com/wp-content/plugins/super-forms/uploads/php/files/851e3abdd342b0444d0da6fd8dfdb7f8/ledanemo.pdfIn PDF document text
    • https://penzionradvanice.cz/res/file/vavuxer.pdfIn PDF document text
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ebf81464a4---72511173047.pdfIn PDF document text
    • http://kokocurry.gm/userfiles/file/67494502153.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=low+context+communication+examplePDF 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_off0001623b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1623B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00017a52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17A52 10512 bytes
SHA-256: 6a0a4da0aa0f19cf61cf5f6e5c9ba3d8703d5913138b62ca82709808fd295e90
font_02_sfnt_off00019244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19244 17424 bytes
SHA-256: 2a5571fef0e6aab7b3ab2ceec2b6c07fa448c29280b2310515fcef9aa2a85667

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