Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c84c762d8b887ce…

MALICIOUS

PDF

447.6 KB Created: 2022-02-25 04:55:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: f8ab0f9064fbee8dcdf7d758c595d2b7 SHA-1: 85e07dbc21d5530157b94dfd950ebc517f05138b SHA-256: 2c84c762d8b887ce2f7904ccc39ff539be7456ea445a432eb40cb4c186372383
176 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3402

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://wirut.co.za/XSRYdR1H?utm_term=chirodini+tumi+j+amar+bengali+movie PDF link annotation
    • http://piqiso.ru/userfiles/file/vifuwewalarukebulobop.pdfIn PDF document text
    • http://allineers.morefriendship.com/upload/files/bibala.pdfIn PDF document text
    • https://internationallanguagenavigators.com/media/kimanurubuzimapatafawoviv.pdfIn PDF document text
    • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b6e426be147---rasojidupoxivikuzosales.pdfIn PDF document text
    • http://comitatoamiantovelodromo.org/userfiles/file/38685077466.pdfIn PDF document text
    • http://rayocazar.com/images/elfinder-1.1/files/file/venaputomemujiv.pdfIn PDF document text
    • https://soi.icami.mx/ckfinder/userfiles/files/8159629267.pdfIn PDF document text
    • http://trustarshida.co/cache/fck_files/file/zovofupep.pdfIn PDF document text
    • https://www.supergram.cz/kcfinder/upload/files/kubaxova.pdfIn PDF document text
    • http://chapraptti.org/userfiles/file/wovavajiguriduguwesodigig.pdfIn PDF document text
    • https://ost-fogging.com/upload/files/86662470263.pdfIn PDF document text
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1618c134ce2804---mudigaxaxegugorizeweza.pdfIn PDF document text
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161658b8c43781---93013719898.pdfIn PDF document text
    • http://studiophotosfashion.it/userfiles/files/depulanoje.pdfIn PDF document text
    • http://hometextiles-consultant.com/ckfinder/userfiles/files/tusewixizokerula.pdfIn PDF document text
    • http://iccarrentals.com/files/file/10925088480.pdfIn PDF document text
    • http://demo-calson.garment-pro.com/ckfinder/userfiles/files/11889191078.pdfIn PDF document text
    • https://www.shropshirefurniture.co.uk/admin/ckfinder/userfiles/files/75805383989.pdfIn PDF document text
    • http://tanphatinst.com/vietkiendo/upload/file/fusajopugikidobosi.pdfIn PDF document text
    • http://suspensionestg.mx/userfiles/file/90379762327.pdfIn PDF document text
    • http://rootbeadmill.com/upload_fck/file/2021-9-7/20210907231417596242.pdfIn PDF document text
    • http://symbioticlifetech.org/attfile/fckimg/file///2021091975822_855930432.pdfIn PDF document text
    • https://synersys.fr/contenu/file/gosajokuwijovozosuf.pdfIn PDF document text
    • http://lumieretvie.com/userfiles/file/18590816102.pdfIn PDF document text
    • http://pressvaluation.net/userfiles/file/94119089130.pdfIn PDF document text
    • http://panyuchen.com/ckfinder/userfiles/site_eachfun_com/files/836173091.pdfIn PDF document text
    • http://webcertain.ca/contentupload/fckeditorUploads/organization_/file/tuzatusukopa.pdfIn PDF document text
    • https://grup-insaat.com/userfiles/file/kiwexeraxizeja.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/v5gtpi8jo5btcust7sa1am5vlh/duzasu.pdfIn PDF document text
    • https://vasutaszeneiskola.hu/ckfinder/userfiles/files/73751412539.pdfIn PDF document text
    • http://luyutea.net/v15/Upload/file/20211022134221208.pdfIn PDF document text
    • https://atahca.pt/atahca_gestor/kcfinder/upload/files/43495092039.pdfIn PDF document text
    • http://asktasi.com/ckeditor/kcfinder/upload/files/lajoporifilaxe.pdfIn PDF document text
    • https://culturasiapamplona.com/guiarte_userfiles/files/zawuwopizulixawufapiripem.pdfIn PDF document text
    • https://auto-rujo.com/images-editor/file/16827594181.pdfIn PDF document text
    • https://www.sonorisation-auxerre.fr/ckfinder/userfiles/files/63151896405.pdfIn PDF document text
    • https://rts-wm.com/ckfinder/userfiles/files/45711186422.pdfIn PDF document text
    • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/58a1fa4cd736cbad5353eb3c41c0db1e/41417193260.pdfIn PDF document text
    • https://boumqueur-edition.com/upload/fckeditor/file/31003252837.pdfIn PDF document text
    • http://laptopcuhaiphong.vn/upload/files/powatik.pdfIn PDF document text
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/8da7b37cf9cb781cefb48bd4134253ac/jidux.pdfIn PDF document text
    • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/6c652fcb22ed5f2ebd911bf297c231a1/7668486523.pdfIn PDF document text
    • http://winkeleninzundert.nl/uploadimages/files/rizigisafevivovirajag.pdfIn PDF document text
    • https://tradegateindia.com/userfiles/file/39154091214.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
    +3 more URL(s)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006729f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6729F 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_01_sfnt_off000688a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x688A1 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00069fbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69FBC 19644 bytes
SHA-256: a1068c6c8d9456f7f42251287f6167bab933e5608a92e35de58903a4a70f0019
font_03_sfnt_off0006d467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D467 10992 bytes
SHA-256: a605902dfb32122c96cc490ca5c2bd4a4fb3e5f412a4a0a2eef93c276b484ad8