Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3b077405949dcb…

MALICIOUS

PDF

613.7 KB Created: 2022-02-25 11:09:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 2bdca37f96c4f77bd4e20d8c0bec7684 SHA-1: 9347a43daaa37bb0ed550779e8bf9f32389d440d SHA-256: 4e3b077405949dcb43dc23efe0b4b9ad760a61223d136cc392d703120c3f759d
120 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3192

Heuristics 8

  • 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.
  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://norin.co.za/XSRYdR1H?utm_term=bluestacks+2++for+windows+8 PDF link annotation
    • https://aldwalia.com/userfiles/files/vitowuretebimifokozerula.pdfIn PDF document text
    • https://gyn-koe70.de/obrazky/file/jeweguwuvefowodolugupoken.pdfIn PDF document text
    • http://yuhuimachinery.com/d/files/28804262813.pdfIn PDF document text
    • http://sanarina-coaching.de/ckfinder/userfiles/files/45144235054.pdfIn PDF document text
    • https://serviceelectric.ca/userfiles/file/9464980947.pdfIn PDF document text
    • https://learnrkb.jugalbandiresearch.com/ckfinder/userfiles/files/28758347257.pdfIn PDF document text
    • http://satyamtracparts.com/userfiles/file/49223190473.pdfIn PDF document text
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161663dd63c813---38702764076.pdfIn PDF document text
    • http://auto-ecole-carnot.communication-pro.fr/public/1218/contenu/file/56433519657.pdfIn PDF document text
    • http://mtsp.by/userfiles/files/siwifalujonulavul.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16104e42d39c30---86699448438.pdfIn PDF document text
    • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161605e3ba737d---seferupifonufiwidugulaxu.pdfIn PDF document text
    • http://gdi-fr.com/upload/upload/mofebepojekibovid.pdfIn PDF document text
    • http://deepakbatteries.com/uploads/file/majixomijetotazibukilavid.pdfIn PDF document text
    • http://bippex.com/filespath/files/20210814095928.pdfIn PDF document text
    • https://www.la-providence-ehpad.fr/ckfinder/userfiles/files/59637898315.pdfIn PDF document text
    • http://aqs-group.it/userfiles/files/62390998481.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fc9f77b1d1f---turetunisugufujuzenumop.pdfIn PDF document text
    • http://www.saveurspoitoucharentes.com/admin/ckfinder/userfiles/files/67142241069.pdfIn PDF document text
    • http://mdsalon.ru/img/lib/file/nolitorilijas.pdfIn PDF document text
    • https://tmtteks.com/files/12140922150.pdfIn PDF document text
    • http://kristiankutschera.de/userfiles/file/40936519647.pdfIn PDF document text
    • http://ceramvetro.net/userfiles/file/vevubugetuxutajo.pdfIn PDF document text
    • https://autopsrus.com/ckfinder/userfiles/files/gijomone.pdfIn PDF document text
    • http://unesco-mediain.cz/fckfiles/file/8398639056.pdfIn PDF document text
    • https://psiakocky-potisk.cz/webpagebuilder/ckfinder/userfiles/files/favefexuxedokemu.pdfIn PDF document text
    • https://goooinggroup.com/userfiles/files/20210925_115230.pdfIn PDF document text
    • https://yesilkoyluleriz.biz/resimler/files/88999362319.pdfIn PDF document text
    • http://rama-sp.com/rama/webroot/js/ckfinder/userfiles/files/zanib.pdfIn PDF document text
    • https://keyword-lda.pt/site/upload/file/38161528439.pdfIn PDF document text
    • https://yuanfuconstruction.com/ckfinder/upload/files/48883977927.pdfIn PDF document text
    • http://bandbaajabarat.com/ci/userfiles/files/jemovetamuwasupox.pdfIn PDF document text
    • https://gelblighting.com/userfiles/files/71843306279.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
    • 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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000922e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x922E4 11128 bytes
SHA-256: 178cd0e5375c90107d4bc74590e27fd50b8c881ec32042626041adf0e0b2f2d4
font_01_sfnt_off00093d2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93D2E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00095449.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95449 19120 bytes
SHA-256: 7109b3ff05340394793e3d3e0f3895e43a3ed31a594775b2c10bc3fa908b3847