Malicious PDF — malware analysis report

Static analysis result for SHA-256 b61e8c83f8ad861c…

MALICIOUS

PDF

373.1 KB Created: 2022-03-23 04:53:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: fef22201462fea3ef06d113ed9376739 SHA-1: aba62a7ec65d2a08a9f476d1edfc7009c52fcf98 SHA-256: b61e8c83f8ad861c7dd68f45ce1aba35413b5de79af975d7b93723b657741128
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5194

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://mifuj.co.za/XSRYdR1H?utm_term=ap+spanish+exam+practice PDF link annotation
    • http://personaleducador.com.br/ckeditor/kcfinder/upload/files/logesirufulewugetelovu.pdfIn PDF document text
    • http://leviedelsignore.it/gallery/files/sixirejediwalofowim.pdfIn PDF document text
    • http://kfnmsz.com/upfolder/e/files/20220323050018.pdfIn PDF document text
    • http://sumisaedu.com/FileData/ckfinder/files/20220323_746E2C6038336BF1.pdfIn PDF document text
    • https://rhodium.vn/uploads/news_file/31346896644.pdfIn PDF document text
    • http://byty-pardubice.eu/UserFiles/File/lilixixa.pdfIn PDF document text
    • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/eb9bcc5fbb8efa0c05097abf3cfb90a3/82828437246.pdfIn PDF document text
    • http://hongphuc.vn/userfiles/file/zafaxarafin.pdfIn PDF document text
    • https://bevillelecomte.ovh/ckfinder/userfiles/files/sagotanubibadekateniza.pdfIn PDF document text
    • http://bashtourizm.ru/uploads/files/doded.pdfIn PDF document text
    • http://cttinteriery.cz/files/upload/files/zozekare.pdfIn PDF document text
    • http://stolizstekla.ru/userfiles/file/jixawofevizukibitole.pdfIn PDF document text
    • http://bashtourizm.ru/uploads/files/99451617312.pdfIn PDF document text
    • https://krishnapumps.com/userfiles/file/tanagag.pdfIn PDF document text
    • http://tnet.site/kcfinder/upload/files/murudikowasewaluxamibibi.pdfIn PDF document text
    • http://greenburysecondary.co.za/kcfinder/upload/files/galolavem.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623504dc28228---pixazozudilikove.pdfIn PDF document text
    • http://vladekoservis.ru/files/pixunozosesusuxiloxif.pdfIn PDF document text
    • http://demirlermetal.com/resimler/files/gaguzijopapere.pdfIn PDF document text
    • https://postele-z-masivu.sk/ckfinder/userfiles/files/60134796020.pdfIn PDF document text
    • http://unii-dz.org/app/webroot/js/kcfinder/upload/files/jujofozakomejet.pdfIn PDF document text
    • http://ez-surveying.com/htdocs/cljr/data/files/gafafepigudajuxexup.pdfIn PDF document text
    • http://barcodeegypt.com/public/kcfinder/upload/files/jonemik.pdfIn PDF document text
    • http://beiwendq.com/userfiles/file/95969831659.pdfIn PDF document text
    • http://nccpindia.org/ckeditor/kcfinder/upload/files/18124633469.pdfIn PDF document text
    • http://tulga.ru/editor/files/14826418864.pdfIn PDF document text
    • https://fminterativa.net/cms/plugins/ckfinder/userfiles/files/gedojoguzizi.pdfIn PDF document text
    • http://srub-servis.ru/userfiles/file/65945144672.pdfIn PDF document text
    • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620dfe07b3221---baravuramavuja.pdfIn PDF document text
    • http://assessmentinsight.com/ckfinder/userfiles/files/75499304540.pdfIn PDF document text
    • https://www.econiwas.com/econiwascontrol/bower_components/ckeditor/kcfinder/upload/files/dosufe.pdfIn PDF document text
    • https://magicdiscoradio.hu/userfiles/file/67171107716.pdfIn PDF document text
    • http://showdoimovel.com/files/files/56742917434.pdfIn PDF document text
    • https://adm.ativo.com/js/kcfinder/upload/files/refupipafedij.pdfIn PDF document text
    • http://bona-agra.pl/Upload/file/51256119051.pdfIn PDF document text
    • https://suadienlanhhanoi.net/upload/files/21876495185.pdfIn PDF document text
    • http://vandientuchinhhang.com/upload/files/tuxejepe.pdfIn PDF document text
    • https://clinicamanila.com/ckfinder/userfiles/files/43504797962.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16203ab143cd71---nukat.pdfIn PDF document text
    • https://lixtech.com.tw/ckfinder/ckfiles/files/livizudu.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_off00056476.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00056476.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056476.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56476 10556 bytes
SHA-256: bd608ddb7ca2eac4c019b59c5129512a25f6a314f272232cca2e6622ad3e4526
font_01_sfnt_off00057c62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57C62 18572 bytes
SHA-256: beeb5d9f2d9dc268175e7548e880210883dd7e4da82efb96ca7a1450677622e2
font_02_sfnt_off0005ad17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD17 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9