Malicious PDF — malware analysis report

Static analysis result for SHA-256 8758f8279fd2fe01…

MALICIOUS

PDF

75.8 KB Created: 2022-03-19 02:24:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 5a0292e0e17147db8ee39c0b9b141e83 SHA-1: 778066db3709baad273200c23d03b9d0e25573e7 SHA-256: 8758f8279fd2fe010cbed119f1b70ebcc9bf773420837ed152f35fa7d403ac34
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9731

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 http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161fcf20a7e252---jilunijuvupef.pdf In PDF document text
    • https://aventuraholidays.elladatravel.ro/mm/file/moxodizejowojabatibetuwe.pdfIn PDF document text
    • https://music-group-store.com/upload/files/83126916254.pdfIn PDF document text
    • http://wanyuantemple.tw/userfiles/file/22667889527.pdfIn PDF document text
    • http://ecohouse-lab.com/userfiles/file/kegibilimibewipone.pdfIn PDF document text
    • http://ciudadaniadesdeelaula.com/kcfinder/upload/files/30779796439.pdfIn PDF document text
    • http://x-site.by/upload/editor/files/33649403858.pdfIn PDF document text
    • https://scorestop.com/uploads/files/ferefobafifuneb.pdfIn PDF document text
    • https://myleague.vn/uploadfiles/kcfinder/files/24901195901.pdfIn PDF document text
    • http://incomingmakedonia.com/files/files/juwupebowupolurida.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fdc9e5382fa---25021822419.pdfIn PDF document text
    • https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621b1f3a73121---dedanumenixot.pdfIn PDF document text
    • http://newms.imprendia.it/userfiles/file/jugonokabuzig.pdfIn PDF document text
    • http://ocalsandalye.com/panel/kcfinder/upload/files/wefufawijirugixo.pdfIn PDF document text
    • https://wunderlandovi.hu/kcfinder/upload/files/gopudezipegaboxunevite.pdfIn PDF document text
    • http://allasclub.com/campannas/file/16430731218.pdfIn PDF document text
    • http://hulstcustoms.ru/uploads/files/tobalejunima.pdfIn PDF document text
    • http://svaz-podnikani.cz/files/file/xesunovedekug.pdfIn PDF document text
    • http://undergroundspitters.nl/kcfinder/upload/files/kukumadu.pdfIn PDF document text
    • http://sncelamel-dz.com/app/webroot/assets/js/kcfinder/upload/files/72617167476.pdfIn PDF document text
    • http://iwebcambodia.com/admin/kcfinder/upload/files/17960195473.pdfIn PDF document text
    • http://de.ruben.pl/ckfinder/userfiles/files/bewuvonumug.pdfIn PDF document text
    • http://fbrasil.com/userfiles/file///88476490367.pdfIn PDF document text
    • https://designsdubaiukfashion.com/userfiles/file/86697982062.pdfIn PDF document text
    • http://budoprojekt.eu/obrazy/file/12292427536.pdfIn PDF document text
    • http://firsttimehomebuyerstudy.com/images/file/90317718375.pdfIn PDF document text
    • http://bluebossa.pl/files/file/76428599371.pdfIn PDF document text
    • https://kueapem.com/contents/files/jabolelepusuj.pdfIn PDF document text
    • http://tccsrl.org/userfiles/files/loduvowolajetoju.pdfIn PDF document text
    • http://vikingpaint.com/user_file/file/vurogiwofaseba.pdfIn PDF document text
    • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620218b924d82---liturunufizewogirid.pdfIn PDF document text
    • https://bcinterior.gocascadia.com/images/cms/file/gadadawerajutud.pdfIn PDF document text
    • https://blv.by/upload/editor/files/81435015614.pdfIn PDF document text
    • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/8109dec67ddddb2402b3e4c9ac96892c/36276969972.pdfIn PDF document text
    • http://jiab.net/userData/board/file/75638980713.pdfIn PDF document text
    • http://nawoo.net/userData/board/file/kotikifato.pdfIn PDF document text
    • http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/bd4b358873a43737193f3fbe0ef99c98/kitapefelefudiki.pdfIn PDF document text
    • http://mrtowing.ca/Lawyers/userfiles/file/70722968288.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=ernest+saves+christmas+trivia+questions+and+answersPDF link annotation
    • 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_off0000c085.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c085.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC085 18192 bytes
SHA-256: 2ca927c5597e34a6400badcf6c9c90c7eb5a568ffbbd0bff429219cadb87421b
font_01_sfnt_off0000f02e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF02E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0001074e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1074E 10968 bytes
SHA-256: 5f40484992aec76131a6f63fc95646fff8871d5325ee5a7d19a88b2676e2d670