Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bcfc25b9d96cf61…

MALICIOUS

PDF

275.3 KB Created: 2022-03-07 08:50:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 5f155a94b95503e664d9423389c976bb SHA-1: 41bfc3fa1c2c10850aaf6ee6f620d37e759e60d4 SHA-256: 3bcfc25b9d96cf617a71f2bbfd9acb63a8fb6a8671f79eee9a792cda8adb6518
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7549

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://colod.co.za/XSRYdR1H?utm_term=sql+format+percent+query PDF link annotation
    • http://paten.kuduskab.go.id/packages/upload/kcfinder/upload/files/gonizonowanumituzabin.pdfIn PDF document text
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/e00484ed75679c7eeb3653e9609f74d5/nodexajuzezoto.pdfIn PDF document text
    • http://blackswaninfotech.com/kcfinder/upload/files/91536231069.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/se08p8mrgtqrb3583lhjtccn66/22840203955.pdfIn PDF document text
    • http://phutungquanghieu.com/app/webroot/files/ckfinder/files/3854872759.pdfIn PDF document text
    • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620bbd2fa83f8---54381136715.pdfIn PDF document text
    • https://contact-house.com/fckeditor/upload/file/dirapawomobijexegutivun.pdfIn PDF document text
    • http://richmediahouse.com/admin/uploads/file/41837308145.pdfIn PDF document text
    • http://balone.net/_upload/file///muganufigosolilavopemosi.pdfIn PDF document text
    • https://cmri.ckbirlahospitals.com/controlpanel/kcfinder/upload/files/94341160605.pdfIn PDF document text
    • http://namaslennikova.ru/kcfinder/upload/files/78892532395.pdfIn PDF document text
    • https://gimenezricarte-deltabogados.com/ckfinder/userfiles/files/62452508990.pdfIn PDF document text
    • http://fijiembajak.com/uploads/ck_uploads/files/38816772181.pdfIn PDF document text
    • http://gk-eventus.ru/admin/ckfinder/userfiles/files/94664123608.pdfIn PDF document text
    • http://ekosertifikat.uznature.uz/userfiles/file/kovisuxogovuzowedu.pdfIn PDF document text
    • http://e-junghan.com/userData/board/file/jejowerojof.pdfIn PDF document text
    • https://htapigroup3.com/contents/files/68739739398.pdfIn PDF document text
    • http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/eeqjg7cs5d2dqocs15cak2cek7/wepopofuti.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16224be01612d1---gazegulekisifezazoxelewo.pdfIn PDF document text
    • http://wakabaeducation.com/userfiles/file/94938346788.pdfIn PDF document text
    • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/162051c751e3f1---liniwugalewijumufunex.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/dd92802c48823f0991d51a6a4f0def43/6058700188.pdfIn PDF document text
    • https://trungtamchonggia.vn/kcfinder/upload/files/37999634155.pdfIn PDF document text
    • https://dulichsamson.co/admin/webroot/upload/image/files/2534056666.pdfIn PDF document text
    • http://www.cadex.biz/app/webroot/kcfinder/upload/files/gezabadexotubexonub.pdfIn PDF document text
    • https://rimi.sk/userfiles/file/61529946236.pdfIn PDF document text
    • http://xn--9i1b14l32gg2dsybq3b.com/upload/fckeditor/file/28832744042.pdfIn PDF document text
    • http://zsmnowakowski.pl/userfiles/file/jovapupawelorizaxazuw.pdfIn PDF document text
    • https://promobryansk.ru/userfiles/files/rigizominetuxexalaf.pdfIn PDF document text
    • http://www.conepe.org.br/public/ckeditor/kcfinder/upload/files/zejosex.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_off0003d971.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003d971.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003d971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D971 10816 bytes
SHA-256: 44eb836b3b655da0cd7588291f399a1fe60c7b45a1d80761e68fc9e9ae202df1
font_01_sfnt_off0003f275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F275 20112 bytes
SHA-256: 99a85ab9fde62c62015c7b6448e545f6758c93cf42276eb9070dab3b4cd8bd60
font_02_sfnt_off00042713.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42713 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9