Malicious PDF — malware analysis report

Static analysis result for SHA-256 793b2431178c1633…

MALICIOUS

PDF

483.2 KB Created: 2022-01-29 17:53:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 8f508d20b3f33d3029a15bcfac190b75 SHA-1: ec4d0b57e9723bfc4535aed888fd584a78ac0f80 SHA-256: 793b2431178c1633ff467ab3b592554982d4e8ce6ca6293f1a74ad467070651c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3572

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://lazav.co.za/XSRYdR1H?utm_term=english+worksheet+possessive+adjectives PDF link annotation
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161c17826506da---64072298541.pdfIn PDF document text
    • https://siliconautomation.com/userfiles/file/tivepezag.pdfIn PDF document text
    • http://ljjxmining.com/uploadfile/file///2021092507503775.pdfIn PDF document text
    • https://pracowniatechart.pl/fckpliki/file/31509994733.pdfIn PDF document text
    • https://provisionsinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bb993df0791---87649489919.pdfIn PDF document text
    • https://rodolphe-blanchet.fr/Rodolphe/fckeditor/file/noremitubenujiviw.pdfIn PDF document text
    • http://aiswaryamatrimonials.com/fck_uploads/file/zalagowamizezaduxiveba.pdfIn PDF document text
    • http://xn--spreewaldpension-lbben-9lc.de/meineBilderAlbertGrundschule/file/50947557542.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1617e3c95ca26c---magaxed.pdfIn PDF document text
    • http://xn----7sbbgprpk7biiq.xn--p1ai/admin/ckfinder/userfiles/files/lametizidik.pdfIn PDF document text
    • https://www.patisserie-flechais.fr/ckfinder/userfiles/files/30922769994.pdfIn PDF document text
    • https://almoheetmanpower.com/public_html/userfiles/file/sonugidixewa.pdfIn PDF document text
    • http://jagdrevier.hu/upload/images/file/saxidofub.pdfIn PDF document text
    • http://ibb-online.ru/f/file/zifitam.pdfIn PDF document text
    • https://cuisinescartier.ca/upload/editor/file/48127245348.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161be941d83691---jisego.pdfIn PDF document text
    • http://tercovci.cz/files/file/fuzexuzuf.pdfIn PDF document text
    • https://conviviodihera.it/dati/upload/file/82774027390.pdfIn PDF document text
    • http://marymo.ru/uploads/files/21954018939.pdfIn PDF document text
    • http://pwr-tech.ru/userfiles/file/33062931737.pdfIn PDF document text
    • http://profesniprukaz.cz/ckfinder/userfiles/files/1403484478.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/fozorezimozevugopebepij.pdfIn PDF document text
    • http://masan315.net/board/imagefile/file/50218291505.pdfIn PDF document text
    • http://gayaarchi.com/userfiles/file/20211213211524.pdfIn PDF document text
    • http://mnogonomerov.ru/uploads/file/70748044885.pdfIn PDF document text
    • http://toitureetfacade.fr/data/Files/98130214510.pdfIn PDF document text
    • https://palakkadtourism.in/ckfinder/userfiles/files/22297704562.pdfIn PDF document text
    • https://equimat-cheval.fr/file/69492644911.pdfIn PDF document text
    • https://nadrozmerne-sklo.cz/uploads/9637025142.pdfIn PDF document text
    • http://dmhu.eu/uploads/uplib/file/24823450803.pdfIn PDF document text
    • https://www.nhabe.com.vn/ckfinder/userfiles/files/212372051.pdfIn PDF document text
    • http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/49882165774.pdfIn PDF document text
    • http://prosefkuchare.cz/userfiles/63759558022.pdfIn PDF document text
    • http://www.egavilanes.com/ckfinder/userfiles/files/kelixubazorin.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d1c9b00d7fc---kefitiligugutij.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/aqf7n2brdvd5hb77463gloman5/varijenazimizofimov.pdfIn PDF document text
    • https://bushregenerators.net/userfiles/files/16599988430.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/sibixesolurideza.pdfIn PDF document text
    • https://protectname.xyz/whoisprivacy/userfiles/files/42017011326.pdfIn PDF document text
    • https://posaonakosovu.com/ckfinder/userfiles/files/12926251688.pdfIn PDF document text
    • http://eiffelflowersquesnel.com/userfiles/file/84043071130.pdfIn PDF document text
    • http://leeharringtonhomes.com/userfiles/file/nojezirulafawa.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 PDF document text
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00072230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72230 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off000738cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x738CF 16056 bytes
SHA-256: 1886725571695f7510d127cd87e08ec7081260ce9656b731c983c33ff176a539
font_02_sfnt_off00076247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76247 11148 bytes
SHA-256: ce913028d44c3cbffb595ee9e28fcc6cffb1aadfd216f9c9f417162190de275b

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