Malicious PDF — malware analysis report

Static analysis result for SHA-256 018eef2a1ef5697f…

MALICIOUS

PDF

406.2 KB Created: 2022-02-28 20:28:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-08
MD5: 76f276adbf857612f06cf5332a1ffe4d SHA-1: fa61109cee2ee073b0959eeb5980cbc2946d7c35 SHA-256: 018eef2a1ef5697ff7a3abfc9f7034a17bfb98d764e145686451e0a808e37741
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6037

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=algebra+problems+pdf PDF link annotation
    • http://xn--80age2amlc.xn--80adxhks/pics/images/file/lusevo.pdfIn PDF document text
    • http://hodoan.net/userfiles/file/8151160903.pdfIn PDF document text
    • http://umpn.pnl.ac.id/asset/kcfinder/upload/files/85883734766.pdfIn PDF document text
    • https://ms01bet.com/contents/files/xiwipuj.pdfIn PDF document text
    • http://ahrestygz.com/userfiles/files/20220218_175939.pdfIn PDF document text
    • http://byecook.com/ckupload/files/28804264829.pdfIn PDF document text
    • https://hahapediatric.com/uploads/files/202202121012057169.pdfIn PDF document text
    • http://xz-brand.com/ckfinder/userfiles/files/mubamuvazudaner.pdfIn PDF document text
    • http://jrpst.pl/userfiles/file/53350564153.pdfIn PDF document text
    • https://sportsht.com/userfiles/file/49534718668.pdfIn PDF document text
    • http://bagsh.itpd.mn/kcfinder/upload/files/4330922596.pdfIn PDF document text
    • https://matfreklam.com/calisma2/files/uploads/52579242217.pdfIn PDF document text
    • http://uniquehotelsolutions.com/files/others/dufomiwinuzani.pdfIn PDF document text
    • http://podolsk-kondicionery.ru/upload_picture/file/riwis.pdfIn PDF document text
    • http://pestaurace.sk/upload/files/dibitosujiterewuzop.pdfIn PDF document text
    • http://rcchoir.nl/upload/files/dopigokuvunaluxav.pdfIn PDF document text
    • http://pinboulevard.com/file_space/files/pelifimagikisojawides.pdfIn PDF document text
    • http://dreamcatcherltd.com/userfiles/file/zovufubifebijiwilawivif.pdfIn PDF document text
    • http://3t-t.com/User_File/UpFile/file/20220226202858_bWl4b3Zva29ub21vZml4.pdfIn PDF document text
    • http://easy-sleep24.de/shop/images/editorfiles/file/91983332629.pdfIn PDF document text
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16203847a0daf3---bematuk.pdfIn PDF document text
    • https://www.yamamotonouen.jp/js/kcfinder/upload/files/tixowenosaligediru.pdfIn PDF document text
    • https://pima-alarms.net/slicice/file/65749778879.pdfIn PDF document text
    • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16214d4a66279f---daruvobilegido.pdfIn PDF document text
    • http://www.dieseproductions.com/upload/customNews/files/mejirewutezaviwepoz.pdfIn PDF document text
    • http://obrazyramix.pl/userfiles/file/kiwewojivosovukovozeze.pdfIn PDF document text
    • http://qazaqbanki.kz/data/content/files/mitituzopukozuxoribiwena.pdfIn PDF document text
    • https://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files/gufimaropuvaga.pdfIn PDF document text
    • http://chiangmai-esc.net/user_img/files/vukugilejiwivojovanepozu.pdfIn PDF document text
    • http://immobilieninvestors.de/userfiles/file/4582162472.pdfIn PDF document text
    • http://hamdannepal.com/userfiles/file/72027355087.pdfIn PDF document text
    • https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1621b873bcb075---taludejuzoxevowujemetade.pdfIn PDF document text
    • https://penzion-pod-rozhlednou.cz/img/file/galenenirudugexakigiv.pdfIn PDF document text
    • https://cihangirhotel.com/upload/ckfinder/files/57476289765.pdfIn PDF document text
    • https://songhongresort.com/img/files/bexuj.pdfIn PDF document text
    • http://e-photosynthesis.org/userfiles/file/69167728901.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_off0005e1b1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005e1b1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005e1b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E1B1 21404 bytes
SHA-256: e898dda8e9524c585f4d81f9bbd712c50631ec11fea5ef98e6c958179d564832
font_01_sfnt_off000619b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619B8 10668 bytes
SHA-256: 6bd3e769bb98de8b8c07b517e7c4305484f63a7aa788cd9930ac2686ff833d9e
font_02_sfnt_off000631ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x631CA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9