Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c64f45b5dd5208c…

MALICIOUS

PDF

278.8 KB Created: 2022-03-15 20:15:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: f794b2f2e17982ab244b5ac6af6b0602 SHA-1: d7c8e6b0ebb072e597e2e7d36bfb868a038b7bb5 SHA-256: 6c64f45b5dd5208cee3e32d2e9473df38b5a2b19b976729eb8fedec932c2e79c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6817

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://colod.co.za/XSRYdR1H?utm_term=employee+relations+interview+questions+and+answers+pdf PDF link annotation
    • https://total-sport.pl/img/upload/files/doruligifi.pdfIn PDF document text
    • https://asiantms.com/ckfinder/userfiles/files/saribadekudusimifesi.pdfIn PDF document text
    • https://oilbasaro.com/web/images/ckfinder/files/20220313165651.pdfIn PDF document text
    • https://immo-macedo.lu/userfiles/files/rerotubigifiw.pdfIn PDF document text
    • http://medeeatour.ro/mm/file/gaxinizuji.pdfIn PDF document text
    • http://actybrain-consult.com/Upload/files/lolegetufomaw.pdfIn PDF document text
    • https://roarmysecurity.ro/mm/file/zusirewased.pdfIn PDF document text
    • https://living-stone.lu/userfiles/files/rewuxeje.pdfIn PDF document text
    • http://vinarstvi.webra.cz/userfiles/file/nabifidimuvaxukig.pdfIn PDF document text
    • https://paardenwelzijnscheck.nl/app/webroot/files/ckeditor_files/files/mabaj.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/32b44b8fb81c12ef39f3cd826c257dfe/xevawesifotiduz.pdfIn PDF document text
    • http://mpsword.com/userData/ebizro_board/file/87692255088.pdfIn PDF document text
    • http://ylpcl.com/ckfinder/userfiles/files/14720242635.pdfIn PDF document text
    • http://a-kamen.com/userfiles/file/bunugumuvezitem.pdfIn PDF document text
    • https://tgvl.in/uploads/fck/files/78212196463.pdfIn PDF document text
    • https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16207b231c3774---pizavuxazawe.pdfIn PDF document text
    • https://hrmconsulting.biz/upload/files/dopokobadinoziluzij.pdfIn PDF document text
    • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/273f223ebee5a1242b902d18d9eada1c/31072300264.pdfIn PDF document text
    • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ffe9b9dd316---zezaga.pdfIn PDF document text
    • https://bentonhomebuilders.com/kcfinder/fonevufudomuraxolufopal.pdfIn PDF document text
    • https://gpe-el.pro/ckfinder/userfiles/files/gedukomegusuredoxitajare.pdfIn PDF document text
    • http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/161fcd1d9474e9---65227136498.pdfIn PDF document text
    • https://xn----7sbab1bcaqplb0ccyi9d.xn--p1ai/files/file/gagokivanepex.pdfIn PDF document text
    • https://edusfera.pl/upload/file/94394229456.pdfIn PDF document text
    • http://shasenconsulting.com/assets/ckeditor/kcfinder/upload/files/vigasuzozej.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_off0003e7a2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003e7a2.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003e7a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E7A2 11152 bytes
SHA-256: 7fbe90278fb8d76f979b565fc64d76902c2e468986207f0e67d4c2354491d2ae
font_01_sfnt_off0004017f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4017F 19560 bytes
SHA-256: 982e5ceaa314df5e13309f75dfd6230c4aced636fead3629cd91e107fe844efb
font_02_sfnt_off00043489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43489 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9