Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d90a67efd2bdb1…

MALICIOUS

PDF

314.8 KB Created: 2022-02-26 15:58:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: b3b6f0996d3f7bf4f68bf052771381e4 SHA-1: ca206a14fe93d5802a96b9d441c59e8b59863efc SHA-256: b5d90a67efd2bdb1fb5e54e2529b3d2cf5973b10daee3e124c9300b5e55825b5
142 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7582

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://www.ktgroup.co.uk/ckfinder/userfiles/files/54571428523.pdf In PDF document text
    • http://preciz.com/uploads/wysiwyg/files/lisinomo.pdfIn PDF document text
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ee338a6643b---80969188463.pdfIn PDF document text
    • http://cheapstandard.com/uploads/files/bajevubagudemewedobana.pdfIn PDF document text
    • http://marty-triple-m.ch/inhalt/files/kajonadurotida.pdfIn PDF document text
    • https://logcabininn.me/nbloom/fckuploads/file/tegowifawoxegosubetu.pdfIn PDF document text
    • http://seoulgreeter.com/userData/board/file/20092184028.pdfIn PDF document text
    • http://oreoltour.ru/sites/default/files/file/gajutejada.pdfIn PDF document text
    • https://ecole-anglais.com/upload/files/22975515992.pdfIn PDF document text
    • http://reestr.fgosvo.ru/files/files/78609751337.pdfIn PDF document text
    • http://agrariusnet.hu/admin/ckeditor/kcfinder/upload/files/88035312059.pdfIn PDF document text
    • https://girilawfirm.com/content_files/files/61459333900.pdfIn PDF document text
    • https://apluskleaning.com/admin/images/file/81076817615.pdfIn PDF document text
    • http://xn--h1agcmh.com/ckfinder/userfiles/files/39463399376.pdfIn PDF document text
    • http://breakevenpoint.pl/uploads/editor/file/raxurixusilakosap.pdfIn PDF document text
    • http://adacu.org/userfiles/file/20211201172454.pdfIn PDF document text
    • http://giga.sk/storage/file/potizukipetolibovewedapim.pdfIn PDF document text
    • https://muziekweekend.pesse.com/bestanden/files/lizetakizozosafosinasupox.pdfIn PDF document text
    • https://heyratacademy.ir/file/jolegebikosumo.pdfIn PDF document text
    • http://starrwindow.com/clients/863399/File/dudadusilidaz.pdfIn PDF document text
    • http://hiace-yoshikawa.com/js/upload/files/76059400008.pdfIn PDF document text
    • http://clubselectionvoyages.com/images/file/97044761992.pdfIn PDF document text
    • http://fajni565.fun4two.pl/uploads/assets/file/21498660434.pdfIn PDF document text
    • https://slavicchurchmississauga.com/fck_upload/file/88514395357.pdfIn PDF document text
    • http://fotofolliasanlazzaro.it/userfiles/files/61316351808.pdfIn PDF document text
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/b708923fb64914dac0414ee2c4f42eba/88380547022.pdfIn PDF document text
    • https://alusol-kw.com/ckfinder/userfiles/files/ximipatamojalopasasifanel.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/16124db72a5196---dopixemumotogikimo.pdfIn PDF document text
    • http://geasit.it/userfiles/files/89844887050.pdfIn PDF document text
    • http://hockeydh.com/files/ups/files/56675208895.pdfIn PDF document text
    • http://casier-a-bouteilles.com/file/56300480766.pdfIn PDF document text
    • http://105chers.netsociality.com/upload/files/38947855776.pdfIn PDF document text
    • http://polenes.cl/userfiles/file/zowevokoparozil.pdfIn PDF document text
    • https://norin.co.za/XSRYdR1H?utm_term=free++image+viewer+for+windows+10PDF link annotation
    • 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_off00047848.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00047848.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00047848.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47848 19680 bytes
SHA-256: 3885f68e0f2b179a17de53cdd35eb6c549e2c48aa44bd9b376d61e071826a00b
font_01_sfnt_off0004abd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ABD5 10856 bytes
SHA-256: dfdefe97bb64fa38a1524d29aa481036f066cd6b7dada235318554f24e45cadd
font_02_sfnt_off0004c4c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C4C2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9