Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbeebffc4616ecca…

MALICIOUS

PDF

393.5 KB Created: 2022-03-03 01:01:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 6b9e5405e78eebf847bc35d2ab663856 SHA-1: c4a36913c7535cd948674deb4d5e7dd028dc034f SHA-256: cbeebffc4616ecca413bdfbcf0bbce3196fb8d37fe90bcc39ecb2aa489e0e8ca
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6792

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://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/4891b8ce003b8ab95b4b15db5ba06cd7/bebarikenaluti.pdf In PDF document text
    • http://terrigena.cz/data/pic/files/78794167482.pdfIn PDF document text
    • http://gktizein.gr/kcfinder/upload/files/mifimufipolupimupisapero.pdfIn PDF document text
    • https://share.linkilike.com/libraries/kcfinder/upload/files/26512966129.pdfIn PDF document text
    • http://lscapital.it/images/file/27221173353.pdfIn PDF document text
    • https://angkaindaman.com/contents/files/videledajazuxuzimotukoled.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620b2587420c5---vinewofumijog.pdfIn PDF document text
    • http://pro-customer.de/userfiles/file/78413303497.pdfIn PDF document text
    • https://www.ewdel.cz/ckfinder/userfiles/files/40396205511.pdfIn PDF document text
    • http://defhjdr.friend-match.com/upload/files/zatozuberizikitagaz.pdfIn PDF document text
    • http://naturalfurnish.com/userfiles/file/luzibazupelutatavifuzekur.pdfIn PDF document text
    • https://www.tocbirsen.org.tr/ckfinder/userfiles/files/30367712513.pdfIn PDF document text
    • https://neoneofytou.com/ckfinder/userfiles/files/24981441159.pdfIn PDF document text
    • http://formacio.fic.cat/uploads/file/56109466689.pdfIn PDF document text
    • https://drjou-vc.com/upload/files/11297270056.pdfIn PDF document text
    • https://fleschimmo.lu/userfiles/files/4267150848.pdfIn PDF document text
    • http://stmarysharipad.com/userfiles/file/56643411379.pdfIn PDF document text
    • http://www.shriramhariram.com/kcfinder/upload/files/57240536973.pdfIn PDF document text
    • http://devison-matras.ru/upload/file/97829072066.pdfIn PDF document text
    • https://jensbrode.de/files/file/livetut.pdfIn PDF document text
    • http://chieucoingason.vn/files/xofejedesufopowaxowaluje.pdfIn PDF document text
    • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/e25c37ba5b2d733b71462d3997d7db6c/wurivuwuwewapovekif.pdfIn PDF document text
    • http://bon-mar.com/fck_user_files/file/modetopasudexugitadetal.pdfIn PDF document text
    • https://halkum.rs/files/notewirew.pdfIn PDF document text
    • http://oipipleszno.pl/userfiles/file/woledotobiwonulekomazixas.pdfIn PDF document text
    • http://smileorganic.net/smileorgfarm/filesupload/File/62294192751.pdfIn PDF document text
    • https://fsbulletsandbrass.com/userfiles/files/lalojunariluxinopero.pdfIn PDF document text
    • https://hkhhvac.com/nbloom/fckuploads/file/zitawo.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=evaluation+scale+templatePDF 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_off0005b9c2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005b9c2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005b9c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9C2 17472 bytes
SHA-256: 6e540749dc8520feca5c7e8790812d013750f3f1ce69c25711e13d014097b13c
font_01_sfnt_off0005e716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E716 10584 bytes
SHA-256: 66f826a17c124268fe6e6aeaa8bfd6e8e822982558c57f3f001800ad28437c1d
font_02_sfnt_off0005ff49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF49 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9