Malicious PDF — malware analysis report

Static analysis result for SHA-256 257b35fd04834632…

MALICIOUS

PDF

348.6 KB Created: 2022-04-15 21:20:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-16
MD5: 96acbcab0ca2233cd50e13a1a2f888cd SHA-1: 1073c7de67ae3634b30f78c02be609dc3807b00c SHA-256: 257b35fd0483463278f1e5e041525a6c8b0477856216202a3c60642ff218d389
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6467

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://cafij.co.za/XSRYdR1H?utm_term=a+alphabet+song+status PDF link annotation
    • http://visit-pune.com/userfiles/file/zunisofimulaxorotixidadi.pdfIn PDF document text
    • http://jjc-dev.com/userfiles/file/jojidalosulikisimoza.pdfIn PDF document text
    • https://egyptsuntours.com/userfiles/files/61982978853.pdfIn PDF document text
    • https://pollackmihalyiskola.hu/ckfinder/userfiles/files/duzere.pdfIn PDF document text
    • http://iswii.net/ckfinder/userfiles/files/gelitif.pdfIn PDF document text
    • http://eurosolar.cz/res/file/tabixutanaregaw.pdfIn PDF document text
    • https://tavefagizukog.weebly.com/uploads/1/3/0/7/130775361/9642067.pdfIn PDF document text
    • http://guneyhukukburosu.com/panel/upload/files/defuk.pdfIn PDF document text
    • http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1623adf353faf3---86016638.pdfIn PDF document text
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/43ca2a272f9662ad159d37f87786cc27/57253817630.pdfIn PDF document text
    • https://fezagexagowib.weebly.com/uploads/1/3/5/3/135313062/0c1add7e.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/162043ab84537f---raxemetokix.pdfIn PDF document text
    • http://solarissoft.com/img/userfiles/files/23841224195.pdfIn PDF document text
    • https://zapufotipo.weebly.com/uploads/1/3/2/7/132740892/taveme.pdfIn PDF document text
    • https://setozovijigaze.weebly.com/uploads/1/3/4/3/134383391/0d8dd.pdfIn PDF document text
    • https://panejukirid.weebly.com/uploads/1/3/1/6/131606092/tajibobezevo-zovokazor-musawiz.pdfIn PDF document text
    • http://www.prodomasa.com/ckfinder/userfiles/files/gomuzuvu.pdfIn PDF document text
    • http://confidenceagricare.com/assets/ckeditor/kcfinder/upload/files/80276840439.pdfIn PDF document text
    • http://pnl.ac.id/asset/kcfinder/upload/files/99506046198.pdfIn PDF document text
    • http://viettranslators.com/webroot/img/files/vomozixubobojinimetefeli.pdfIn PDF document text
    • https://chentimeboutique.com/uploads/files/202202250051471498.pdfIn PDF document text
    • http://otestmanager.org/club/data/userfiles/file/20220225080247.pdfIn PDF document text
    • http://potlista.com/file/files/20752991210.pdfIn PDF document text
    • http://cleangroupbd.com/ck/upload/files/51059946115.pdfIn PDF document text
    • http://gyarmatilovastorna.hu/userfiles/file/42371106823.pdfIn PDF document text
    • http://exima.kr/userData/board/file/14436478585.pdfIn PDF document text
    • https://shareen.persianfreegate.com/share/admin/upload/files/81276755433.pdfIn PDF document text
    • https://dapekedes.weebly.com/uploads/1/3/4/6/134643928/5011304.pdfIn PDF document text
    • https://vefawotujetebab.weebly.com/uploads/1/3/4/6/134651081/xuxozeg.pdfIn PDF document text
    • http://sm.ac.th/ckfinder/userfiles/files/nuduxubu.pdfIn PDF document text
    • http://ah-taihe.com/upload_fck/file/2022-2-22/20220222022641174607.pdfIn PDF document text
    • https://cihangirhotel.com/upload/ckfinder/files/49486805940.pdfIn PDF document text
    • https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1623182c9d7939---xajino.pdfIn PDF document text
    • https://ms01bet.net/contents/files/70191557640.pdfIn PDF document text
    • http://acpiindia.com/userfiles/file/30347825393.pdfIn PDF document text
    • https://lacaune.hu/userfiles/file/63131930834.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.netIn extracted file (font_00_sfnt_off0005061d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005061d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005061d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5061D 17268 bytes
SHA-256: bc464b15817b668d9e29a54c2ddef28e507344e6079f816f83e0a7807f82cc10
font_01_sfnt_off000531fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x531FC 10560 bytes
SHA-256: 5beb7736ba3e727ef2c925f2059358bcabfd77f59dd3e9cc4dd0a12cde6b9524
font_02_sfnt_off000549de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x549DE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1