Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b73bd837621a58…

MALICIOUS

PDF

188.5 KB Created: 2022-02-04 22:04:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: bc54124984b2c38a8f860d44c97eadbd SHA-1: 25f9c6a7229fc986dd778e5672878fedfb91bc9d SHA-256: 72b73bd837621a580c243e75e3ec734fa395fb80e77788fa3fc6cb5c526da9ff
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8238

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://colod.co.za/XSRYdR1H?utm_term=angular+template+reference+variable+viewchild PDF link annotation
    • https://manage4.realtourvision.com/rtv/ckfinder/userfiles/images/files/maxobisejimebot.pdfIn PDF document text
    • https://zagorjeadventureteam.hr/files/35590249053.pdfIn PDF document text
    • https://taxforce.nl/userfiles/files/62563055036.pdfIn PDF document text
    • https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/2d08cc45290234e9d5448d406dfdd3fa/vijixibusodegilizav.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/161391b04836fc---derapo.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1615224c6b7a89---74404513740.pdfIn PDF document text
    • https://techielingo.com/fck_uploads/files/3213757816.pdfIn PDF document text
    • https://alcc.c-zentrix.com/ALCC/mail_attachments/multitenant-ws-01/1/1638996405.pdfIn PDF document text
    • http://unicaconsultoriarh.com/images/files/katasoxaxinuzogun.pdfIn PDF document text
    • http://blankheich.de/images/uploads/file/niwogogeleb.pdfIn PDF document text
    • http://reyazahmad.bscsaoner.in/ckfinder/userfiles/files/wafuxise.pdfIn PDF document text
    • http://vetsnab32.ru/userfiles/file/zusubuperodogavinev.pdfIn PDF document text
    • https://stalbeckers.nl/userfiles/image/file/776857764.pdfIn PDF document text
    • https://kuni.ro/app/webroot/files/userfiles/files/85778087429.pdfIn PDF document text
    • https://cellini-illuminazione.rafidecor.md/kcfinder/upload/files/72994044413.pdfIn PDF document text
    • http://solar-makernavi.com/ckfinder/userfiles/files/zumapezotimirakelaxi.pdfIn PDF document text
    • http://telekommarketing.com/firme_data/files/bimuko.pdfIn PDF document text
    • http://pushgroup.lv/userfiles/files/nimigelixuvu.pdfIn PDF document text
    • http://sbs-group.co/userfiles/files/xigamefaxidedatu.pdfIn PDF document text
    • https://infoenergie-loire.org/userfiles/file/58530271674.pdfIn PDF document text
    • http://collectifff.be/imgdb/accueil/files/nofiberevu.pdfIn PDF document text
    • http://mizuho-co.net/file/ck/files/takosadonake.pdfIn PDF document text
    • http://ufcnagykanizsa.hu/userfiles/file/54241593851.pdfIn PDF document text
    • https://ises.smithpressautomation.com/phpsites/vertical_living/uploads/file/xofavodozogasopat.pdfIn PDF document text
    • https://ventadealmacenes.com/userfiles/file/fixexe.pdfIn PDF document text
    • http://thefarmatarapahoecounty.com/userimages/mezulir.pdfIn PDF document text
    • https://niboparis.com/upload/fckeditor/files/77862285926.pdfIn PDF document text
    • https://pushtypathshala.com/demo/aims/files/images/files/nukupezesivopajojav.pdfIn PDF document text
    • http://metabolit.ru/files/file/totoxasufiwetodixel.pdfIn PDF document text
    • http://arieslog.com/assets/ckeditor/kcfinder/upload/files/tasinitesewel.pdfIn PDF document text
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161294b69e714b---zalij.pdfIn PDF document text
    • https://indiansabroad.uk/userfiles/file/16780902096.pdfIn PDF document text
    • https://thietbivesinhsonhoa.com/webroot/img/files/wanunadofafozefonume.pdfIn PDF document text
    • http://indago-rovigo.it/userfiles/files/4909436941.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_off00028245.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28245 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00029960.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29960 18456 bytes
SHA-256: 30f3198c0cc36d914dcdb144a54198daa683b7a6fe117d26d2af839b1c1ccc60
font_02_sfnt_off0002c935.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C935 11152 bytes
SHA-256: da9f9697c00685c190a7f5fb51468a80ae6a75f47b836b2d70fce55f76fe4bca