Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d9b58346308a92…

MALICIOUS

PDF

363.1 KB Created: 2022-03-20 00:01:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 2edb2a2cb5881073f4d0298b4a0c14ef SHA-1: b2136d91e04146da2d8a19feee504fa9525be63a SHA-256: c5d9b58346308a92ac429a2ba68deffac09ac956026c67acc618498c7b54254b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7397

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://sunuf.co.za/XSRYdR1H?utm_term=prezi+templates+free+world PDF link annotation
    • http://asiavent.com/UserFiles/file///38535823788.pdfIn PDF document text
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/783c220e0db66c78f50b3b70cd0bce03/julidebava.pdfIn PDF document text
    • https://www.hippocratio.gr/ckfinder/userfiles/files/kovipox.pdfIn PDF document text
    • https://communicationscharlevoix.com/admin/kcfinder/upload/files/89285700236.pdfIn PDF document text
    • http://lafiestadelmoto.cz/files/file/xakolid.pdfIn PDF document text
    • http://bright-inter.com/file_media/file_image/file/movurudinegawusitupaki.pdfIn PDF document text
    • http://xn--c1ajalgzu0a.xn--p1ai/userfiles/file/goxode.pdfIn PDF document text
    • http://vdi.vn/userfiles/file/tujuweko.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621c54b1c2071---panokida.pdfIn PDF document text
    • https://tch.lu/files/files/vapudede.pdfIn PDF document text
    • http://ilpiccantino.it/admin/data/img/uploads/files/80023744558.pdfIn PDF document text
    • http://efuturesthai.com/uploads/files/sogamexaligazenuta.pdfIn PDF document text
    • http://alltechsro.cz/files/33942718005.pdfIn PDF document text
    • http://alpes-de-haute-provence.proximeo.com/ckfinder/userfiles/files/56681947454.pdfIn PDF document text
    • http://viquadro.com/userfiles/files/piromovureluxapal.pdfIn PDF document text
    • http://saringkarnwood.com/UserFiles/file/76332374086.pdfIn PDF document text
    • https://sukienmiennam.com/userupload/files/33299197040.pdfIn PDF document text
    • http://manhchenang.vn/webroot/img/files/88344958782.pdfIn PDF document text
    • http://thuaphatlailongthanh.vn/upload/contentFile/minhchau/file/tavuji.pdfIn PDF document text
    • http://giaydantuongphongngudep.com/images/news/file/pimaxisubodezovilovavi.pdfIn PDF document text
    • http://elixiriso.com/kcfinder/upload/files/38561723318.pdfIn PDF document text
    • https://10kshot.com/customerinterview/ckfinder/userfiles/files/ridudi.pdfIn PDF document text
    • http://shasenconsulting.com/assets/ckeditor/kcfinder/upload/files/69894691949.pdfIn PDF document text
    • https://bloodyoffice-dotrollsecure-com.budapestunderguide.com/upload/userfiles/file/rufupofu.pdfIn PDF document text
    • http://retroscope.menu-card-maker.com/uploads/files/povokizimeka.pdfIn PDF document text
    • http://jia-longsofa.com/uploadpic/jialong151126/files/202202060926188899.pdfIn PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/1622180d076bf3---vixurixig.pdfIn PDF document text
    • http://hanmih.com/userfiles/file/20220306234702.pdfIn PDF document text
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621dd6ca335bd---17027198118.pdfIn PDF document text
    • https://kimhanh.com.vn/kcfinder/upload/files/92129579259.pdfIn PDF document text
    • http://sweet-sugar.de/images/uploadedimages/file/nipuzufa.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053f98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53F98 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000556b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x556B3 17768 bytes
SHA-256: f52f6b20cab16bfa5196a1482edddcea8506d1e0a09f6a2aa0b0b87c48fcd7fb
font_02_sfnt_off000584c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x584C1 10700 bytes
SHA-256: 8ec9f4849359d8c78a62d15592912375427716ef5692965a92aaf9a4f271086c