Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d812665a7c7543f…

MALICIOUS

PDF

496.4 KB Created: 2022-01-26 02:37:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 9039acdd404d789d9781ded336471069 SHA-1: f7f673cdc54d750069cb9a0bf1175c1c726d001f SHA-256: 5d812665a7c7543fd2b2d7080e28c07bfe7590c16a9f6fabfb055a7864c901d7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4656

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://yoyep.co.za/XSRYdR1H?utm_term=blended+book+sharon+draper+pdf PDF link annotation
    • https://brazilairporttransfers.com/ckfinder/userfiles/files/nujimefagegu.pdfIn PDF document text
    • http://ngocminhcnc.com/demo_thietbimay_24_7/upload/files/kisuzefujo.pdfIn PDF document text
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/c2706327e21c90f3ab8a45dcc38e35ec/puxuke.pdfIn PDF document text
    • http://www.waetsukai.jp/system/ckfinder/userfiles/files/66033386450.pdfIn PDF document text
    • http://artattack-concerts.de/files/file/44799639637.pdfIn PDF document text
    • http://ddc-touggourt.dz/ar/files/85634231428.pdfIn PDF document text
    • http://galaxyjewel.cn/uploadfile/files/jobadasutiganukugufik.pdfIn PDF document text
    • http://www.icmtravel.net/assets/ckeditor/kcfinder/upload/files/437313594.pdfIn PDF document text
    • http://atad.ae/emanager/assets/ckeditor/plugins/kcfinder/upload/files/28665147222.pdfIn PDF document text
    • http://www.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/muparuxajolut.pdfIn PDF document text
    • http://draftingfloorplan.com/ckfinder/userfiles/files/xagizixe.pdfIn PDF document text
    • https://playindiano1.in/ckfinder/userfiles/files/raruvejepa.pdfIn PDF document text
    • http://madinagirls.com/easydo%20v2.00/files/uploads/24837652129.pdfIn PDF document text
    • http://gzcaifeilai.com/ckfinder/userfiles/files/202201130755045290.pdfIn PDF document text
    • http://ser-buk.com/userfiles/file/40282231683.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1619ce88c02221---29336506698.pdfIn PDF document text
    • http://szjwwj.com/userfiles/file///popewovobelowofoleku.pdfIn PDF document text
    • http://planao.com/ckfinder/userfiles/files/vamajovewegavilep.pdfIn PDF document text
    • https://luxurybaths.marblobaths.ph/app/webroot/img/files/43202787014.pdfIn PDF document text
    • http://cheapmarkt.com/userfiles/file/72988508649.pdfIn PDF document text
    • https://sowlindia.com/userfiles/file/89375610688.pdfIn PDF document text
    • http://ranchobg.com/img/file/88533065052.pdfIn PDF document text
    • https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/3ea170a75e6f24f7d43ad93beacb2d26/93414011423.pdfIn PDF document text
    • http://getsolarnj.com/userfiles/file/54248408889.pdfIn PDF document text
    • http://schuetzenfest-hemeringen.de/ablage/userfiles/files/rekizasutipujutoji.pdfIn PDF document text
    • http://klubbelgickychobrov.sk/editor_uploads/files/vopukebodipura.pdfIn PDF document text
    • http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b46fc32e591---31131626032.pdfIn PDF document text
    • http://ncfc.com.tr/ckfinder/userfiles/files/jewokiwo.pdfIn PDF document text
    • http://centromedicoveterinarioadda.com/userfiles/files/soloxefubup.pdfIn PDF document text
    • https://deltarents.com/upload/ckfinder/files/25115976564.pdfIn PDF document text
    • http://conf.gorganiau.ac.ir/kcfinder/upload/files/vamited.pdfIn PDF document text
    • http://heldermusic.nl/ckfinder/userfiles/files/38351466807.pdfIn PDF document text
    • http://fluorescent-training.com/file/kuwesujelorurupabel.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_off000752b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x752B4 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00076958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76958 10692 bytes
SHA-256: fddd0bcec627c7b4425e32040d8345e71cfdc2c7c8add05626b1f2054a39ebf1
font_02_sfnt_off0007818d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7818D 18384 bytes
SHA-256: 2c7c75dd66c63858a645e460d5642e747acee2ed263f342e345dd637bfed1e82