Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc1bed66c3ab7d3…

MALICIOUS

PDF

226.6 KB Created: 2022-03-19 15:59:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: c6cd9b8e1a266ea0171c98c6cecf8f82 SHA-1: 32fb9276a95aab1f47b88660041d9de81a84c900 SHA-256: 3bc1bed66c3ab7d31ce85d444e858c4d80d9ede15b146f17b42eb25cfd3e429c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8340

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://loheb.co.za/XSRYdR1H?utm_term=city+tv+calgary+reporters PDF link annotation
    • https://paklya.su/design/img/upload/file/tuxinutaxipesotazaso.pdfIn PDF document text
    • https://www.retailexpert.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/35663077103.pdfIn PDF document text
    • http://www.etiquettes-adhesives-bobine.fr/kcfinder/upload/files/saduborok.pdfIn PDF document text
    • http://primesystem.kz/app/webroot/js/kcfinder/upload/files/61222198787.pdfIn PDF document text
    • http://bearbuy888.coco1490.com/upload/file_folder/file/61525536715.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/8iq0nbk7ciij1dto3rbvms3qg2/39606489793.pdfIn PDF document text
    • http://universalthailand.com/images/uploads/ckfinder/files/28214931392.pdfIn PDF document text
    • https://dobosugyvedkecskemet.hu/userfiles/file/nojikojomigefolejifekituz.pdfIn PDF document text
    • http://hkalc.com/userfiles/81212083866.pdfIn PDF document text
    • http://sysquare.com/UserFiles/files/34356062742.pdfIn PDF document text
    • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/162266ffab8a90---27350727440.pdfIn PDF document text
    • http://nellion.ru/upload/files/nuwufikefagukixudigo.pdfIn PDF document text
    • http://eurosolar.cz/res/file/radaf.pdfIn PDF document text
    • https://casacresques.cat/uploads/files/64764986417.pdfIn PDF document text
    • http://sys-svinding.dk/userfiles/file/visegudarilosakojofudax.pdfIn PDF document text
    • http://galenbio.com/images/upload/file/68099183052.pdfIn PDF document text
    • http://kool-house.com/upload/editor/file/11566013977.pdfIn PDF document text
    • https://colortest.biolifecosmetics.com/upload/file/tigatixo.pdfIn PDF document text
    • http://www.guidanceias.com/assets/files/plugins/kcfinder/upload/files/50174848243.pdfIn PDF document text
    • https://www.cheeweitay.com/admin/kcfinder/upload/files/pakawejadukufegugorug.pdfIn PDF document text
    • http://keralabiblesociety.com/fck_uploads/file/sanaxovofiwazasaremiwal.pdfIn PDF document text
    • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/1b9d6bd3677a7cf7c4f6e103261e0566/todixavojefadevo.pdfIn PDF document text
    • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623176ebe9709---nejewi.pdfIn PDF document text
    • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622561231f28f---fejokewesizu.pdfIn PDF document text
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/162113c79d4b89---nurupol.pdfIn PDF document text
    • http://portretnifotografie.cz/img-content/files/64507177444.pdfIn PDF document text
    • http://jatyn.cn/upfiles/202203/file/1646626351.pdfIn PDF document text
    • http://villapastello.com/admin/data/files/files/kowapijopejebazalekowarof.pdfIn PDF document text
    • https://siemens-rozetki.ru/kcfinder/upload/files/xixabisidilan.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/bufibemupewejikisokavidil.pdfIn PDF document text
    • https://fcefrance.com/kcfinder/upload/files/jawaz.pdfIn PDF document text
    • https://hotelindigha.com/FCKeditor/file/xuxeweri.pdfIn PDF document text
    • https://shiksha24.com/userfiles/files/39019787077.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_off00031d24.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00031d24.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031d24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D24 17684 bytes
SHA-256: 51b75d58b7b43db4736eba3efcc7638cd108be215e722c09f1b1b54308f811cc
font_01_sfnt_off00034b24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34B24 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00036244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36244 10656 bytes
SHA-256: d244dab1d3b17fc80887fd638decffb6734d2a9df21e088fc5defcf478775fa7