Malicious PDF — malware analysis report

Static analysis result for SHA-256 624048f891529724…

MALICIOUS

PDF

190.2 KB Created: 2022-03-02 22:26:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: 34a786e7399a36b3599fddff07377510 SHA-1: 61a7432d1a025132510ab12186c8ffd053dfc17a SHA-256: 624048f8915297248800a51014699d824cea84f5e77969c85fd9309d36ef84e5
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8439

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://lazav.co.za/XSRYdR1H?utm_term=phasor+diagram+of+transformer+on+capacitive+load PDF link annotation
    • http://jodhpurheritagewalk.com/images/file/60104563030.pdfIn PDF document text
    • https://shivajigrihnirman.com/singhania/downloads/file/wavutazabazebubub.pdfIn PDF document text
    • https://hanoihome.net/img_duhoc/files/96599357329.pdfIn PDF document text
    • http://potolokomsk.ru/ckeditor/kcfinder/upload/files/vubev.pdfIn PDF document text
    • https://gym-rectif.fr/ckfinder/userfiles/files/tikupetupivaletu.pdfIn PDF document text
    • http://medlabtests.com/kcfinder/upload/files/kuxidulasena.pdfIn PDF document text
    • http://citadelcaralarms.com/userfiles/file/13693445210.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216aa35cf109---venasurowudu.pdfIn PDF document text
    • http://perilatomsk.ru/ckfinder/userfiles/files/teferafuw.pdfIn PDF document text
    • http://janeblondsalon.cz/files/upload/files/lilof.pdfIn PDF document text
    • http://noithatdangcap.vn/app/webroot/uploads/files/92659112254.pdfIn PDF document text
    • http://sincaremedicaltour.com/js/upload/11681098095.pdfIn PDF document text
    • https://autoprofi.ua/userfiles/file/gumuvakusimeju.pdfIn PDF document text
    • https://petribax.nl/userfiles/file/66744469803.pdfIn PDF document text
    • https://sisharp.com/editor_upload/file/nagagifakafutitagakomiti.pdfIn PDF document text
    • https://trade.inter-ural.ru/ckfinder/userfiles/files/lanisovetumipomuxafatil.pdfIn PDF document text
    • https://liantoong.com/archive/upload/files/bozefaxubatak.pdfIn PDF document text
    • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f94f37a1db6---nagaputomerasimatabo.pdfIn PDF document text
    • http://aiaato.com/FileData/ckfinder/files/20220226_6E5EC80F7616949C.pdfIn PDF document text
    • https://www.coopi.org/admin/assets/js/ckeditor/kcfinder/upload/files/files/vumoxusudiw.pdfIn PDF document text
    • https://pezenasenchantee.fr/userfiles/file/33749155880.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621eaa2c01069---tanabubisuverujurulowo.pdfIn PDF document text
    • http://medcentervrn.ru/userfiles/files/29074487120.pdfIn PDF document text
    • http://www.examnotice.in/uploads/files/nuxetadosumisosidimunomot.pdfIn PDF document text
    • http://hrt-foto.hu/_user/file/18086356408.pdfIn PDF document text
    • https://lighthousemacau.com/html_upload/file/kulazurovobazo.pdfIn PDF document text
    • https://karthikaspices.com/uploads/file/litedevezakevivari.pdfIn PDF document text
    • http://shop-exclusive.cz/userfiles/file/25078463255.pdfIn PDF document text
    • https://schneider-rozetki.ru/kcfinder/upload/files/39051570642.pdfIn PDF document text
    • https://foodvellythailand.com/upload/files/risapusi.pdfIn PDF document text
    • https://techielingo.com/fck_uploads/files/38607950068.pdfIn PDF document text
    • http://www.armstrongre.com/files/files/52025948211.pdfIn PDF document text
    • https://ceb.lk/assets/js/kcfinder/upload/files/wusuv.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_off000287ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x287BA 18700 bytes
SHA-256: e56036e273f19f27ccc067b627555db1a7d85d7074c91caa338dba6a9a26f113
font_01_sfnt_off0002b8be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B8BE 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0002cfde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFDE 11136 bytes
SHA-256: 4e37b36edba66cefa75b9aa55dad544d04c1437b1d2b44fe3c83ef5ccbcfc926