Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca6f15f3bea7cb67…

MALICIOUS

PDF

251.1 KB Created: 2022-04-06 00:45:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 26a677b34b491584daf6ed9094fb8384 SHA-1: a5293bae3480299beb8ac06250fd56f70b770d00 SHA-256: ca6f15f3bea7cb67b02cd69da59997256402993cda962cfef49731f5895a95fc
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7783

Heuristics 7

  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://tskrea.com/userfiles/file/kunamuduxibif.pdf In PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files/47137342275.pdfIn PDF document text
    • https://akproauto.com/nbloom/fckuploads/file/19998975627.pdfIn PDF document text
    • http://bacsiha.com/public/ckfinder/userfiles/files/8497954023.pdfIn PDF document text
    • http://asea-admin.com/_userfiles/file/20220321175621.pdfIn PDF document text
    • http://www.glutec.it/_admin/kcfinder/upload/files/71863706890.pdfIn PDF document text
    • https://www.amis-simserhof.fr/kcfinder/upload/files/85497612935.pdfIn PDF document text
    • http://greenlasthousing.com/admin/kcfinder/upload/files/69461135382.pdfIn PDF document text
    • http://senkardeslerkereste.com/kcfinder/upload/files/79254437386.pdfIn PDF document text
    • https://chambres-hotes-aube-bleue.fr/userfiles/file/budoreneze.pdfIn PDF document text
    • http://hammaddedunyasi.com/panel/kcfinder/upload/files/37014856530.pdfIn PDF document text
    • http://barahi.com/assets/userfiles/files/49904294068.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/162256ea1d29cd---beruwarovon.pdfIn PDF document text
    • http://uro-medical.pl/zdjecia/fotki/file/ravosafireda.pdfIn PDF document text
    • http://niengrangchuyensau.com/upload/contentFile/file/15533909972.pdfIn PDF document text
    • https://assignmentmart.com/ckfinder/userfiles/files/mapanerefamidovufe.pdfIn PDF document text
    • http://musiclivemarsala.com/userfiles/files/xofamidemudogapepuk.pdfIn PDF document text
    • https://zenithoverseas.com/assets/userfiles/files/59810963770.pdfIn PDF document text
    • http://palirna-frydek.cz/uploaded/file/28156789896.pdfIn PDF document text
    • http://yidaig.com/uploadfile/file/20220323232806.pdfIn PDF document text
    • http://www.superprzygoda.pl/galeria/files/4445203649.pdfIn PDF document text
    • https://taline.hr/files/6733522218.pdfIn PDF document text
    • http://klemanpince.hu/files/file/77704798769.pdfIn PDF document text
    • http://www.lalorraineperdue.com/documents/wetibulifevoxuzofisi.pdfIn PDF document text
    • http://wsospice.org/uploads/userfiles/file/file/dubavajeguvajemikonewefa.pdfIn PDF document text
    • http://www.serge-valentin.net/ckfinder/userfiles/files/jasoremubugetafaxapa.pdfIn PDF document text
    • https://haysalon.com/public_html/userfiles/file/77992323537.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16217ae533a8af---82768078408.pdfIn PDF document text
    • http://f-kcc.jp/user_data/userfiles/files/duwesulugavo.pdfIn PDF document text
    • https://hmanagement.net/userfiles/file/93234140654.pdfIn PDF document text
    • http://faithhh.net/js/kcfinder/upload/files/24656009319.pdfIn PDF document text
    • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/1624bd09ebe26d---zufekigawerapuzuribubamal.pdfIn PDF document text
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16216207664e4b---sutefasamijiteg.pdfIn PDF document text
    • https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/a1ca473a74ffb2070616dc335f77d700/69893315284.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=metodo+de+convolucionPDF link annotation
    • 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_off000380ee.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000380ee.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000380ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x380EE 17964 bytes
SHA-256: adde935861d5b4178aca23f42202e600139c9cf2d9986496dd8f244501307668
font_01_sfnt_off0003ae9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3AE9C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0003c6b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C6B3 10092 bytes
SHA-256: ef7a5817f668f3974d824b86e9ff724d8371c6caa0bea516384d9f8b7a7ba06a