Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f0192526c60897…

MALICIOUS

PDF

96.5 KB Created: 2022-03-02 20:22:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: d27e19f77d4d18682cbd027eb2828adf SHA-1: f92cee821b6a2568a7a447932b235368797f2ca5 SHA-256: a4f0192526c6089721da6d21d269c4544f3e1a93f6c37bec398189478c63d920
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9633

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://loheb.co.za/XSRYdR1H?utm_term=bergquist+5000s35+datasheet PDF link annotation
    • http://xn--zb0b8a770aowi8xe5tfo88a.com/upload/tmp/file/1643671173.pdfIn PDF document text
    • https://xn----8sbcehyodmtf1czh.xn--p1ai/userfiles/file/29106431307.pdfIn PDF document text
    • https://www.phutungnganhmay.com.vn/kcfinder/upload/files/rarubalazenonubomimisasi.pdfIn PDF document text
    • https://www.rapn.ru/ckfinder/userfiles/files/99273010719.pdfIn PDF document text
    • https://loyq.ru/admin/upload/photos/library/files/88293802924_1645912287.pdfIn PDF document text
    • http://mikailang.net/userfiles/file/20220226122848_1576128579.pdfIn PDF document text
    • http://ijfbn.com/editor_up/jewevo.pdfIn PDF document text
    • https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/85750c1223823e5eeea9cbf02f1e0d2a/xudurobivokimesazugid.pdfIn PDF document text
    • http://secoinblock.com/upload/files/95432167823.pdfIn PDF document text
    • https://enkaotomatikkapi.com/depo/sayfaresim/file/96189099677.pdfIn PDF document text
    • https://noble-program.site/js/ckfinder/userfiles/files/xixagikikipigaxizulijib.pdfIn PDF document text
    • http://mytenniscoach.net/admin/ckeditor/kcfinder/upload/files/20932727880.pdfIn PDF document text
    • http://conflictfreeelectronics.com/ourprojects/chowki/UserFiles/renuka/file/gudulapa.pdfIn PDF document text
    • http://dunaisarkanyok.hu/admin/kcfinder/upload/files/87052588104.pdfIn PDF document text
    • http://thucphamtruongthanh.com/img/files/86118380172.pdfIn PDF document text
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621e9ce477261---83378733097.pdfIn PDF document text
    • http://aquaview.net/uploads/assets/files/mujoxudenax.pdfIn PDF document text
    • http://safakkereste.com/kcfinder/upload/files/tapivemafujudevalib.pdfIn PDF document text
    • https://soyana.de/js/ckfinder/userfiles/files/75331378657.pdfIn PDF document text
    • http://project-lovcen.me/userfiles/file/jobimufekifuz.pdfIn PDF document text
    • https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/1620d69ff3cc18---tutidasapazudafakujedetil.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/161ff32870c342---88414824939.pdfIn PDF document text
    • http://hankook-system.com/userData/ebizro_board/file/bepum.pdfIn PDF document text
    • http://lamekatus.ee/uploads/ckeditor/files/towotejabamejojorunoxami.pdfIn PDF document text
    • http://escrima-rlp.de/userfiles/file/45026459029.pdfIn PDF document text
    • http://synhbio.com/upload/files/20760879145.pdfIn PDF document text
    • http://www.bash.cl/media/file/44446932137.pdfIn PDF document text
    • http://goodtraefarm.com/ckupload/files/vuzigesu.pdfIn PDF document text
    • http://maciel.renalic.com/integracion2/site/userfiles/file/7429042511.pdfIn PDF document text
    • http://geodeslaboratori.eu/userfiles/files/84465650284.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621ad9bbb4a11---sanoralopekarunabanotum.pdfIn PDF document text
    • https://sahyadrisevasanstha.in/userfiles/file/gekuvinewajuwuj.pdfIn PDF document text
    • https://globaldreamindia.com/webcms/file/46706800375.pdfIn PDF document text
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/8655482cdae97e9e11d1032e7b7813d9/fowojaviza.pdfIn PDF document text
    • http://concienciafiscal.com/kcfinder/upload/files/rogub.pdfIn PDF document text
    • https://myleague.vn/uploadfiles/kcfinder/files/66696437273.pdfIn PDF document text
    • http://paykaaluminiya.ru/ckfinder/userfiles/files/kawukoxakuvifigafesames.pdfIn PDF document text
    • https://arabadvertise.com/userfiles/files/2493362445.pdfIn PDF document text
    • http://scsychem.com/upload/files/zawelebofi.pdfIn PDF document text
    • http://vasa-project.org/fckupload/file/11546521292.pdfIn PDF document text
    • https://zweefvlieg.net/userfiles/file/razexegibuwonarigijok.pdfIn PDF document text
    • http://reklamnizbozi.cz/data/upload/files/85226359382.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/b8149dd0ac8807f7335f2eb438a476ee/93257199162.pdfIn PDF document text
    • https://legend-chang.com/UserFiles/files/15503769849.pdfIn PDF document text
    • http://weddingdove.tw/uploads/files/202202231248565111.pdfIn PDF document text
    • http://liweisteel.co.th/ckfinder/userfiles/files/65233956327.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
    +5 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010e04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E04 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00012524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12524 10984 bytes
SHA-256: 7002b3073db436240c36cda114e617e2e62e96a77f1f6c46a7d5ec5b7f0dce2f
font_02_sfnt_off00013e50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E50 20048 bytes
SHA-256: e47ec43fcdc41f358de21c8c2b859db9bc8ce583d67452877c6d4834e3bccecc