Malicious PDF — malware analysis report

Static analysis result for SHA-256 84726eba8b115e92…

MALICIOUS

PDF

494.5 KB Created: 2022-03-19 08:46:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: cc0f6fbae91e0611f28b999e99395475 SHA-1: 2d834ac6605a7ece657bb06004915a7b2d49f2aa SHA-256: 84726eba8b115e924d29163ff5e25ae0434c5c6d004217f1ea79834e0cdc975a
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3788

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=free+geometry+worksheets+for+4th+grade PDF link annotation
    • http://isotope3.pm-ural.com/uploads/files/wanosukis.pdfIn PDF document text
    • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1623207927ae2b---80165562711.pdfIn PDF document text
    • https://www.fondazionepolis.it/blog/ckeditor_fullcolor/kcfinder/upload/files/47161584683.pdfIn PDF document text
    • http://proleague.dk/userfiles/file/98909259129.pdfIn PDF document text
    • http://vaynhe.com/upload/files/sadinowip.pdfIn PDF document text
    • http://kryotherapie.net/neu/userfiles/file/9291510868.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1620a25581b609---37616439439.pdfIn PDF document text
    • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/162233c397e611---gosunofusufowo.pdfIn PDF document text
    • http://worldwidestationeryholdings.com/files/file/wokowamokajiridinaf.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/16216acae94bb7---39434933017.pdfIn PDF document text
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/8801e27eb2c843970c7621b64b6f32c6/27920303798.pdfIn PDF document text
    • http://studiogaleazzo.eu/userfiles/files/dogej.pdfIn PDF document text
    • http://nislamengineering-ltd.com/assets/ckeditor/kcfinder/upload/files/7414713473.pdfIn PDF document text
    • http://catwalkexotique.com/userfiles/razisiresumedenapazezuzax.pdfIn PDF document text
    • http://test-webursitet-ru.webursitet.ru/Files/file/zapojegepudogad.pdfIn PDF document text
    • http://dga.gr/ILC/img/file/78499499482.pdfIn PDF document text
    • https://bselink.com/userfiles/file/ruveviguselulatoxonobujug.pdfIn PDF document text
    • http://vpecargo.com/userfiles/file/kabonobobatovirajugup.pdfIn PDF document text
    • http://herbier.musee-oberlin.com/img_db/sudivibemujadobuxufir.pdfIn PDF document text
    • http://aztkgbv.love-mrt.com/upload/files/zobubidogumurufe.pdfIn PDF document text
    • http://pecsimutargygaleria.hu/files/file/kudupe.pdfIn PDF document text
    • https://resortweeks.pro/userfiles/file/93211051536.pdfIn PDF document text
    • http://anton-joyeros.shopcloud.es/ckfinder/userfiles/files/suvilo.pdfIn PDF document text
    • https://travelinnsuites.com/nbloom/fckuploads/file/34590109960.pdfIn PDF document text
    • http://iwebcambodia.com/admin/kcfinder/upload/files/19749533018.pdfIn PDF document text
    • https://fitness-sport.it/userfiles/file/kafuto.pdfIn PDF document text
    • http://aviatechinform.ru/sadm_files/29952047747.pdfIn PDF document text
    • http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622567b97a882---vafutexupokatekobotoxu.pdfIn PDF document text
    • http://promerilaclama.com.tr/panel/kcfinder/upload/files/80106346343.pdfIn PDF document text
    • http://anipetkingdom.com/webroot/img/files/pezonejadewerupuxufewumun.pdfIn PDF document text
    • https://rsebolivia.org/userfiles/file/87999016856.pdfIn PDF document text
    • https://www.phutungnganhmay.com.vn/kcfinder/upload/files/49191449126.pdfIn PDF document text
    • https://anpheatingandac.com/nbloom/fckuploads/file/sotojasow.pdfIn PDF document text
    • http://svm.kalistecom.org/img/files/bowozu.pdfIn PDF document text
    • http://losaltos.com/wysiwygfiles/file/zabuwonuferepe.pdfIn PDF document text
    • http://stromzeleny.cz/file/derugelijaxixemiwogati.pdfIn PDF document text
    • https://ozora.schaffsen.com/contents/file/tebokusozitogixomuguz.pdfIn PDF document text
    • http://divorceinhungary.hu/kcfinder/upload/files/liparowonet.pdfIn PDF document text
    • http://euromarkcreations.com/new/fck_img/file/17834999901.pdfIn PDF document text
    • https://sgpm.krakow.pl/aaeventy/kcfinder/upload/files/85173231328.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_off00074839.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00074839.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00074839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74839 10908 bytes
SHA-256: 4d7c671988051bc4ce6f714dfacd5118a3d25c5fc735817807bf269a5e962e90
font_01_sfnt_off00076168.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76168 18580 bytes
SHA-256: c5e0dcfe8a37cadd0f9ac49d7402623e5671551d976e1cc87622cfd2d154e4dd
font_02_sfnt_off0007925e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7925E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9