Malicious PDF — malware analysis report

Static analysis result for SHA-256 7933ab105ba71d9e…

MALICIOUS

PDF

79.0 KB Created: 2022-04-02 22:52:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: d3665cb29fcc0f17934d8e2cf22ef7aa SHA-1: 6341db94a9db7b10eebb049f9d10fd5a0ca61460 SHA-256: 7933ab105ba71d9e795e7f05edeb824df80a3980620811f65eb1d945b3619de1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9758

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 https://lazav.co.za/XSRYdR1H?utm_term=matriz+de+referencia+de+lingua+portuguesa+do+6o+ao+9o+ano PDF link annotation
    • http://www.vishalsahni.com/public/ckfinder/userfiles/files/ritubisul.pdfIn PDF document text
    • http://www.granito-terrazzo.be/ckeditor/kcfinder/upload/files/37612152645.pdfIn PDF document text
    • https://www.camaragranada.org/administracion/kcfinder/upload/files/kiburemitowidebiroj.pdfIn PDF document text
    • http://hybsch.it/upload/file/21887258246.pdfIn PDF document text
    • http://mastersnab.pro/upload/files/bavelu.pdfIn PDF document text
    • https://lodejudimawepum.weebly.com/uploads/1/3/4/3/134350935/xipazulikagixim-werujo-bunez.pdfIn PDF document text
    • http://mediedil.eu/userfiles/files/54333447296.pdfIn PDF document text
    • http://krukaiart.com/userfiles/files/61282312034.pdfIn PDF document text
    • http://hunting.kg/userfiles/file/vifuposaxemipani.pdfIn PDF document text
    • https://guwixuwekolarap.weebly.com/uploads/1/3/2/7/132740580/7713264.pdfIn PDF document text
    • https://kilobabax.weebly.com/uploads/1/3/1/8/131856311/c7ce31bfc2.pdfIn PDF document text
    • http://euredit-editions.com/userfiles/file/61023807106.pdfIn PDF document text
    • https://generalaudit.pl/eurostyl/photos/file/defowulusekagujof.pdfIn PDF document text
    • http://hkalc.com/userfiles/suzatubulijofeleguwow.pdfIn PDF document text
    • http://thebeautyofdesign.nl/ckfinder/userfiles/files/80857863246.pdfIn PDF document text
    • http://php-lounge.de/userfiles/file/sixubolebixemawonevesu.pdfIn PDF document text
    • https://www.toptalentusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620d6cfe6639c---55144218095.pdfIn PDF document text
    • https://stgeorgedentalcare.in/ckfinder/userfiles/files/64493336722.pdfIn PDF document text
    • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/162151515c7ec2---jidubefatojanu.pdfIn PDF document text
    • https://coaching-jk-academic.com/ckfinder/userfiles/files/kegosebamiku.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/162212cdbd440f---lugezokisu.pdfIn PDF document text
    • https://marblo.marblobaths.ph/app/webroot/img/files/89528568898.pdfIn PDF document text
    • http://brette-animation.com/userfiles/file/fenegatidodofif.pdfIn PDF document text
    • https://ginubeputugexow.weebly.com/uploads/1/3/0/7/130738710/zobise.pdfIn PDF document text
    • http://thehedgerowchronicles.com/ckfinder/userfiles/files/xolududepolupu.pdfIn PDF document text
    • https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/1623312e11fa38---vipowofugonirasereku.pdfIn PDF document text
    • https://mumifigade.weebly.com/uploads/1/3/4/3/134314269/da44a63f.pdfIn PDF document text
    • https://fobewesepujub.weebly.com/uploads/1/3/2/3/132303403/9482725.pdfIn PDF document text
    • https://takadoturig.weebly.com/uploads/1/3/4/1/134108809/cb01c152.pdfIn PDF document text
    • http://coverybox.box8websites.com/ckfinder/userfiles/files/mizifijebelisupojap.pdfIn PDF document text
    • http://dentish.ru/ckfinder/userfiles/files/53798151555.pdfIn PDF document text
    • https://techielingo.com/fck_uploads/files/61561276063.pdfIn PDF document text
    • http://neogmbh.de/www/sites/default/files/userfiles/file/rebewejuxo.pdfIn PDF document text
    • https://mokogexikimowo.weebly.com/uploads/1/3/4/3/134321985/fejix_mudujatawuj_fuwabidatum_vapodi.pdfIn PDF document text
    • http://mssyh.com/upload/images/file/20220310060140.pdfIn PDF document text
    • https://tebijiburowuwe.weebly.com/uploads/1/3/4/8/134850880/pikupevis-migafo-nevozividuguku.pdfIn PDF document text
    • http://qazaqbanki.kz/data/content/files/56472794926.pdfIn PDF document text
    • http://egimmo.ch/kcfinder/upload/files/74956890169.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 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_off0000c445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC445 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000dc57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC57 20456 bytes
SHA-256: 0d130883493960323c08567df212b7dc127a08aa71c6284eb09b6402baef3c03
font_02_sfnt_off000110dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110DC 11284 bytes
SHA-256: 91f5c3969859ae6c77be9a47ffdb998a949c53dd565ec23a7b862b5173e122b3

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