Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c6f077f62ff9f1c…

MALICIOUS

PDF

252.6 KB Created: 2022-02-03 17:05:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: 2e90c4c45f4e5b26dc35c6a94fa07d47 SHA-1: adb5021b742f5e016f77d4b30cb8d0a674df319f SHA-256: 6c6f077f62ff9f1c177476d59f0bb3ca19a4e57dfb3e889f3d044054207014ff
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7466

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://fecuq.co.za/XSRYdR1H?utm_term=que+es+un+acido+en+quimica+pdf PDF link annotation
    • https://www.theknowledgeonline.com/files/lib/ckfinder/userfiles/files/74936767319.pdfIn PDF document text
    • https://onthespothousing.com/userfiles/file/roboderuvexaw.pdfIn PDF document text
    • http://orem.mn/uploads/files/72055813469.pdfIn PDF document text
    • http://quocteanviet.com/img-chamthi/files/vuvetejegef.pdfIn PDF document text
    • https://cqc-material.com/app/webroot/userfiles/files/65566250797.pdfIn PDF document text
    • http://seamacros.com/upload/file/3022879967.pdfIn PDF document text
    • http://smartickgroup.com/userfiles/1327599127.pdfIn PDF document text
    • https://qfuse.it/images/uploaded_files/ckfinder/files/1627333586_44a7ddea2a.pdfIn PDF document text
    • https://hardlineconstruct.ro/app/webroot/files/userfiles/files/bowevasudefejiw.pdfIn PDF document text
    • http://naasschoolofmotoring.com/fckeditor/userfiles/file/wazoxubixid.pdfIn PDF document text
    • http://kanizsakran.hu/userfiles/file/gumilil.pdfIn PDF document text
    • http://tc-muehlacker.de/data/tcmuehlacker/userfiles/file/zidolomam.pdfIn PDF document text
    • https://funcarele.com/ckfinder/userfiles/files/53168463283.pdfIn PDF document text
    • http://dobermanncz.eu/files/zogilabetize.pdfIn PDF document text
    • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fc9c6e9f818---fidufitew.pdfIn PDF document text
    • http://skontrolsengineering.com/file_media/file_image/file/vevogufejopev.pdfIn PDF document text
    • https://pecas.friparque.pt/userfiles/file/waramogufikulenubuwivop.pdfIn PDF document text
    • http://www.sm.ac.th/ckfinder/userfiles/files/xigiwug.pdfIn PDF document text
    • https://brawlcall.com/ckfinder/userfiles/files/vofebegunimiwonawopa.pdfIn PDF document text
    • http://annuaire-regional.com/ckfinder/userfiles/files/sejoxukojefatuje.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/161c89e0b161c3---37739841861.pdfIn PDF document text
    • http://geodavidepini.it/userfiles/files/bijujowanife.pdfIn PDF document text
    • http://bielle-srl.com/userfiles/files/finibiresid.pdfIn PDF document text
    • http://aock.kz/app/webroot/js/kcfinder/upload/files/84639632635.pdfIn PDF document text
    • https://yapluka-services.fr/userfiles/file/88464467887.pdfIn PDF document text
    • http://fantasymusic.it/userfiles/files/batepifuwalu.pdfIn PDF document text
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/161dc082828af7---vegivawubetavegakotaz.pdfIn PDF document text
    • http://mishelik.ru/userfiles/file/30551511111.pdfIn PDF document text
    • https://www.tahreek-a-khatmenabuwat.com/assets/ajs/kcfinder/upload/files/79720921119.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160e2f2e071f9b---45074281363.pdfIn PDF document text
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161f3f9a69c110---18644594276.pdfIn PDF document text
    • http://razzledazzleevents.in/userfiles/file/27139207712.pdfIn PDF document text
    • https://usssecuritate.ro/userfiles/file/14015962712.pdfIn PDF document text
    • http://zabradli-znerezu.cz/userfiles/file/wevijufujorikani.pdfIn PDF document text
    • https://eric-parnes.com/ckfinder/userfiles/files/90503298680.pdfIn PDF document text
    • http://cleversystems.ru/userfiles/file/rinegujezekavo.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_off000384fe.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000384fe.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000384fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x384FE 10844 bytes
SHA-256: 22020c3acc389ed92e816227e127f78da080966d39396bab25e443a72db218ff
font_01_sfnt_off00039de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39DE2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003b4fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B4FD 17924 bytes
SHA-256: eb867abc48738efabbf2a82cee3cb65d0030cbc12679e87abb3e69d64fb6be44