Malicious PDF — malware analysis report

Static analysis result for SHA-256 8757d233dc663237…

MALICIOUS

PDF

464.9 KB Created: 2022-03-02 22:55:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: bcb86f4d5299a131557e5c3d148e9f9e SHA-1: 2107eb907685037b50723a2e2c7a5b70dee5bfaf SHA-256: 8757d233dc6632370a53d7301bdb48d7706b1732af1f11c5496b2179efec9601
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3419

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://lovig.co.za/XSRYdR1H?utm_term=grade+9+reading+comprehension+worksheets PDF link annotation
    • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620b246508756---kowugoju.pdfIn PDF document text
    • https://bursac.net/userfiles/file/18201925032.pdfIn PDF document text
    • http://yameitecl.com/ckfinder/userfiles/files/20220203_085102.pdfIn PDF document text
    • http://go-trec.com/wp-content/plugins/super-forms/uploads/php/files/avqvgn6vnd70157os8mjaqj8sc/pasadetegodexilabazebe.pdfIn PDF document text
    • https://www.au-holding.ru/kcfinder/upload/files/67276245478.pdfIn PDF document text
    • https://www.pianoeg.de/admin/ckeditor/kcfinder/upload/files/muwolavotofokulomonotika.pdfIn PDF document text
    • http://hermanosgolbano.com/admin/fckeditor/editor/filemanager/connectors/phpfile/71841566686.pdfIn PDF document text
    • https://www.sdhbd.org/backend/web/kcfinder/upload/files/10725284362.pdfIn PDF document text
    • http://ficfart.org/userfiles/file/77551804067.pdfIn PDF document text
    • https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/j95p1rsem79igvio4gfm74d2pb/353511200.pdfIn PDF document text
    • https://tgvl.in/uploads/fck/files/zolosibev.pdfIn PDF document text
    • http://www.bash.cl/media/file/63057403457.pdfIn PDF document text
    • http://amandatravel.com/userfiles/file/lexuvereposidakizu.pdfIn PDF document text
    • http://e-sheremet.com/img/49503165851.pdfIn PDF document text
    • http://thomas-zigon.de/images/file/61023751873.pdfIn PDF document text
    • http://thechitay.com/uploads/userfiles/file/nodepawenisax.pdfIn PDF document text
    • http://inkjetartandimage.com/Uploads/file/wubipominovamatasiw.pdfIn PDF document text
    • https://rozetki.moscow/kcfinder/upload/files/liralenizidozubodite.pdfIn PDF document text
    • http://propertiesforrent.com/userfiles/file///49066779555.pdfIn PDF document text
    • http://viswinkelindex.nl/images/uploads/15938268424.pdfIn PDF document text
    • https://montferri.com/admin/js/plugins/kcfinder/upload/files/29916916385.pdfIn PDF document text
    • http://wcag.powiatgora.pl/userfiles/file/banugisajezej.pdfIn PDF document text
    • http://nadiadsa.org/userfiles/file/38115646659.pdfIn PDF document text
    • http://cinstech-inspect-survey.com/fckeditor_userfiles/file/3670582178.pdfIn PDF document text
    • https://12shio2.com/contents/files/zebizimotoleranujujukel.pdfIn PDF document text
    • http://image.dlib.vn/libedu/news/bvu/20220218/file/sedutiliveraf.pdfIn PDF document text
    • https://latework.cz/soubory/44452312489.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16216ba921f500---18861691393.pdfIn PDF document text
    • https://konzolstudio.ro/uploaded_files/file/8771107980.pdfIn PDF document text
    • https://ecableapp.com/FCKeditor/FCKimgUpload/file/84121284354.pdfIn PDF document text
    • http://idroter.org/userfiles/files/dufunizekibakesozodepag.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620b259015344---xevekejaka.pdfIn PDF document text
    • https://appvid.eus/userfiles/files/dojezexuzido.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_off0006b968.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006b968.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006b968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B968 19024 bytes
SHA-256: d2493b9089dd40b7cec6953eb159e761ea31bda72ec74d54727398d680c3e198
font_01_sfnt_off0006eb57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB57 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00070271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70271 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa
font_03_sfnt_off00071878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71878 11300 bytes
SHA-256: a75d5443700e877e2465b605586b3c25b65fdb75ff74a43305b253d7e8cc4b94