Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c6b3361d724767b…

MALICIOUS

PDF

418.1 KB Created: 2022-03-16 04:29:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: 79e3e6e8cf48405329946163c12bf238 SHA-1: 6ab45bca3663b5eaa2ec3f81b5f9c9d52bfe4823 SHA-256: 6c6b3361d724767b3cca6c0d68abde6d9a55386cd1ef16c34c72e3c15a28acc7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2628

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://russiandance.ru/frontend/web/js/kcfinder/upload/files/xuxasowitotezomuxo.pdf In PDF document text
    • https://ildiko-szepsegszalon.hu/userfiles/file/29405356268.pdfIn PDF document text
    • https://hyper.oneewe.com/_img/files/runufezebabik.pdfIn PDF document text
    • http://www.cottagegrad.ru/files/file/sopafamibo.pdfIn PDF document text
    • http://machinesupplier.cn/data/product/file/2022223_01946_367.pdfIn PDF document text
    • https://vitanov.rs/files/zeragexed.pdfIn PDF document text
    • http://vlaevski.com/admin/kcfinder/upload/files/nuduvifikofapuwu.pdfIn PDF document text
    • http://twtqedu.com/userData/ebizro_board/file/69640133712.pdfIn PDF document text
    • https://ibericadearmerias.com/file/5035602592.pdfIn PDF document text
    • http://arisutour.com/ckupload/files/dibesunekidewovesefa.pdfIn PDF document text
    • https://egyiksem.hu/uploads/file/81092502539.pdfIn PDF document text
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/db3e3af4435fd44f6ad6fcbf49998a0e/67155882170.pdfIn PDF document text
    • https://aimic.com/userfiles/file/gupixalomopinawaniguzu.pdfIn PDF document text
    • https://songhong.info/userfiles/file/92503494691.pdfIn PDF document text
    • http://centrodebridge.pt/ckeditor/kcfinder/upload/files/25247188812.pdfIn PDF document text
    • http://studiotecnicomancini.eu/userfiles/files/7282842925.pdfIn PDF document text
    • https://cbdc.co/uploads/ckfinder/userfiles/files/69452647965.pdfIn PDF document text
    • http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/rizazunaniwogi.pdfIn PDF document text
    • https://coffotea.com/uploads/files/202202130454367059.pdfIn PDF document text
    • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1622abb618b136---32669580926.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622e58a457db3---kuzejowobemaduk.pdfIn PDF document text
    • http://www.chinnanaidoo.org.za/kcfinder/upload/files/dilutekerapi.pdfIn PDF document text
    • http://polishingmarblefloor.it/userfiles/files/30444576922.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/ntadffnrfrp3e1gbtt45o2oshf/44166186855.pdfIn PDF document text
    • http://www.hro.ait.ac.th/js/ckfinder/userfiles/files/86752301380.pdfIn PDF document text
    • https://kga-am-adlergestell-ev.de/kga/ckfinder/userfiles/files/39611750654.pdfIn PDF document text
    • http://www.ztc.hekko24.pl/panel/kcfinder/upload/files/keledevuwijuzimitu.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620114b721120---49244117658.pdfIn PDF document text
    • http://sinocelltech.com/filespath/files/20220304115301.pdfIn PDF document text
    • http://khiconghoixuancong.com/Khicong/admin/userfiles/file/xurofixixivo.pdfIn PDF document text
    • http://lauraestetica.com/userfiles/files/womilela.pdfIn PDF document text
    • http://anantitsolution.com/ckeditor/kcfinder/upload/files/tisibugoxotaditeketok.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/383d1b5979b90709825e523bb70b7bfb/nolowazijigaw.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16214cebbb9631---44403392399.pdfIn PDF document text
    • https://tjp2-hotlink-j3t.com/contents/files/53448281805.pdfIn PDF document text
    • http://xn--80aguejfegacgj0ad.xn--p1ai/pict/file/42169494321.pdfIn PDF document text
    • https://www.prashantgroup.com/admin/kcfinder/upload/files/78078543179.pdfIn PDF document text
    • http://alda.pl/ckfinder/userfiles/files/sitofofuwixitibi.pdfIn PDF document text
    • https://medgal.pl/admin/ckfinder/userfiles/files/21904405032.pdfIn PDF document text
    • http://shortguycentral.com/ck_uploads/files/nifofe.pdfIn PDF document text
    • http://a2kat.ru/userfiles/file/puvufuxamatiralibonaxu.pdfIn PDF document text
    • http://mini-garden.ru/userfiles/file/rovewikigemos.pdfIn PDF document text
    • https://mifuj.co.za/XSRYdR1H?utm_term=candomble+de+angola+pdfPDF 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_off0005f36b.bin)
    +1 more URL(s)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005f36b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F36B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00060a8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A8D 10556 bytes
SHA-256: abe875bc347377cfaa41956ea9dcae2b1c2250ce9e6d02646a8741f06ec0b9f9
font_02_sfnt_off00062224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62224 16160 bytes
SHA-256: 4ac500d6e3c0ff81b9d7bba6b662cc1b6c57f4f8b05facc13edcda647588841f
font_03_sfnt_off000637a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637A4 25720 bytes
SHA-256: a60434302ce962d6e2ba0580b0506cdfdd82c0628f1ceb7559d810ac061582b7