Malicious PDF — malware analysis report

Static analysis result for SHA-256 2582639435155218…

MALICIOUS

PDF

229.6 KB Created: 2022-03-16 15:28:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-12
MD5: 1039482c3cb554bc4fcfd631f409c01c SHA-1: 4a757bf7b4d54f0da6ee80e6743979d498c2a0ca SHA-256: 2582639435155218b77f896d028a204d17115821cf46d1f9069d9dbdb648ce7b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7299

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
  • 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.
  • 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://lovig.co.za/XSRYdR1H?utm_term=assume+form+meaning PDF link annotation
    • https://kossuth-csepel.hu/inc/kcfinder/upload/files/96793060787.pdfIn PDF document text
    • https://3zslitomysl.cz/admin/editor/kcfinder/upload/files/rogodejituki.pdfIn PDF document text
    • https://jmcoverseaspvtltd.com/uploads/files/nepiwikiriful.pdfIn PDF document text
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/463015a447aa0d37486839d84a00776e/kukuridogisafezuxeg.pdfIn PDF document text
    • https://isped.cz/kcfinder/upload/files/22475932548.pdfIn PDF document text
    • http://viettranslators.com/webroot/img/files/4607297189.pdfIn PDF document text
    • http://yuanjen.com/ckfinder/userfiles/files/19356370958.pdfIn PDF document text
    • http://randoquad72.fr/userfiles/file/lakidovikutumasawijodubu.pdfIn PDF document text
    • https://medtek.vn/storage/file/90508111753.pdfIn PDF document text
    • https://cgb-echafaudage.fr/upload/files/dolabuginozosexisonuv.pdfIn PDF document text
    • http://boathousebrokerage.com/userfiles/file/42513491178.pdfIn PDF document text
    • http://chunzucn.yun2u.cn/upload/files/todawikowejom.pdfIn PDF document text
    • http://gndpta.eu/news_objects/files/tupadoguwinozoxegewol.pdfIn PDF document text
    • http://phuwangnam.com/user_file/file/5317077516.pdfIn PDF document text
    • http://potolokomsk.ru/ckeditor/kcfinder/upload/files/84109658542.pdfIn PDF document text
    • http://www.matrixaviationfueling.com/assets/ckeditor/kcfinder/upload/files/logugod.pdfIn PDF document text
    • http://www.yeosung21.or.kr/ckfinder/userfiles/files/1644900778.pdfIn PDF document text
    • https://www.veedik.net/assets/admin/kcfinder/upload/files/90244736391.pdfIn PDF document text
    • https://www.miroku-jp.com/system/js/kcfinder/upload/files/pesutiva.pdfIn PDF document text
    • https://fundreamz.com/ckfinder/userfiles/files/lifejobisipipifoxosese.pdfIn PDF document text
    • http://vizilo-vizitura.hu/admin/kcfinder/upload/files/16981080051.pdfIn PDF document text
    • http://namaslennikova.ru/kcfinder/upload/files/51957952389.pdfIn PDF document text
    • http://gocmenotokurtarma.com/userfiles/file/tadomosonuzovaj.pdfIn PDF document text
    • http://web5gstore.com/Files/files/98573021695.pdfIn PDF document text
    • https://ms01bet.net/contents/files/nipine.pdfIn PDF document text
    • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/5c9326facf70e608df7003e07a073709/62487538039.pdfIn PDF document text
    • https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/daaf79b30d90ea670e4e6bf839660df1/24718611416.pdfIn PDF document text
    • http://unionzglobal.com/ckupload/files/bagujadow.pdfIn PDF document text
    • http://schneider-glossa.ru/kcfinder/upload/files/butem.pdfIn PDF document text
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16223ef3771f6a---zasotafanurawulujela.pdfIn PDF document text
    • https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/jidomejivexilasobabajotef.pdfIn PDF document text
    • http://ip-malkov.ru/uploads/files/mofofewidogutaxox.pdfIn PDF document text
    • https://scavilecis.it/userfiles/file/37505625237.pdfIn PDF document text
    • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16217b66676b4c---xenuf.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_off000324f5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000324f5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000324f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x324F5 19576 bytes
SHA-256: a4a35dbbd6a69ff9bf641ecd901c541c8dc42ad9c9927e35b82b9c32017fcf18
font_01_sfnt_off000357eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x357EB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00036f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36F0B 10496 bytes
SHA-256: 9f90331761ddd9e2af8b395b329f3cabebbd31d86f0ca75b8c34b54b70adfe3f