Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d1addcd560252b…

MALICIOUS

PDF

252.1 KB Created: 2022-04-13 01:50:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: 13f47f101a2b5abeab4693f21e14b499 SHA-1: ed963c74891c57f9f61977f554fb6c9922dae474 SHA-256: b5d1addcd560252bdbe9f8bc4030529c71645047de12b16ed7e988cd0309ebba
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6599

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://yubit.co.za/XSRYdR1H?utm_term=buck+converter+design+pdf PDF link annotation
    • https://harryreichert.de/uploaded_pics/News/file/wasekibotuka.pdfIn PDF document text
    • http://millenium.moscowfashion.net/content/xuploadimages/file/ninezizaxuvusozesufuletor.pdfIn PDF document text
    • http://wakabaeducation.com/userfiles/file/zorodo.pdfIn PDF document text
    • http://zlhk.ru/upload_picture/file/mejusoxirari.pdfIn PDF document text
    • https://schneider-rozetki.su/kcfinder/upload/files/2405337703.pdfIn PDF document text
    • http://applyforloansnow.ca/site-uploads/37900864372.pdfIn PDF document text
    • http://craftland.de/res/wysiwyg/file/73519576005.pdfIn PDF document text
    • https://mcsfood.com/images/file/nunesazukofojufifugof.pdfIn PDF document text
    • http://www.slappedtogether.com/editoruploadfiles/file/nevetutokaso.pdfIn PDF document text
    • https://mobugozuko.weebly.com/uploads/1/3/4/8/134869294/0fb2d6182.pdfIn PDF document text
    • https://markmont.eu/editor_uploads/system/files/79582489186.pdfIn PDF document text
    • https://wusaxipexezoz.weebly.com/uploads/1/3/2/3/132302720/0a2c6dc.pdfIn PDF document text
    • http://plafondchauffant.fr/img/user/file/ronorerowobatogekufuranu.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623a3cf7189a0---jotorutufigeji.pdfIn PDF document text
    • https://norservis.com/files/files/zamopukaj.pdfIn PDF document text
    • https://unique.global/wp-content/plugins/super-forms/uploads/php/files/e5f1ad9eb3b3557b910920b098d94c74/siwimufemaxelud.pdfIn PDF document text
    • https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/16229a59e8b79a---tuzoramejeda.pdfIn PDF document text
    • https://xagegebalelil.weebly.com/uploads/1/3/4/5/134579129/dubupegoxijo.pdfIn PDF document text
    • http://www.siposferenc.hu/html/goreg.pdfIn PDF document text
    • https://bitexaxa.weebly.com/uploads/1/3/4/4/134477172/sazesovukuzaratarofu.pdfIn PDF document text
    • https://lengthening-sldf.fasamra.com/userfiles/file/jodiriguradal.pdfIn PDF document text
    • http://rkenterprisesonline.com/FCKeditor/file/munojo.pdfIn PDF document text
    • https://belogukuke.weebly.com/uploads/1/3/1/6/131637095/4237740.pdfIn PDF document text
    • https://noihoithanhtuan.com/media/ftp/file/84864036848.pdfIn PDF document text
    • https://camgloberealtor.com/userfiles/file/numafekeza.pdfIn PDF document text
    • https://thevalauryscottage.com/caningest/images/file/72329829391.pdfIn PDF document text
    • https://at2-turbo-j3t.com/contents/files/jidexejezunasilaxa.pdfIn PDF document text
    • http://manilag.com/FileData/ckfinder/files/20220408_41C4DAAC244D22A7.pdfIn PDF document text
    • http://sireny.net/share/files/36658409855.pdfIn PDF document text
    • http://www.asbea.org.br/assets/plugins/kcfinder/upload/files/15195654068.pdfIn PDF document text
    • https://ibbfvhn.org/recursos/kcfinder/upload/files/kotaverew.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_off00037e58.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00037e58.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00037e58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37E58 10900 bytes
SHA-256: 0c38f01b7fa2eee7c8a67641d358cacdcfcca33011c93035b6132004b3478d92
font_01_sfnt_off0003979c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3979C 19204 bytes
SHA-256: ff544b488e697bda37e05e220bc4cff2147d8ce7b27bd8da52ff5be88c72f5c2
font_02_sfnt_off0003c8c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C8C8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1