Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb80b50a7377d1e4…

MALICIOUS

PDF

343.9 KB Created: 2022-03-25 13:51:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: aba1521dad85cd397954237922f8cde3 SHA-1: e3ffa7bd457eff17e2fd8a0f24ecc179101be2ef SHA-256: cb80b50a7377d1e4a04b1ba2722d4d87700c839565661e416533812fc72f6da9
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6641

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lovig.co.za/XSRYdR1H?utm_term=how+to+paint+death+guard PDF link annotation
    • http://bjhtdszdh.com/v15/Upload/file/2022319915138482.pdfIn PDF document text
    • http://creacionesfullpack.com/kcfinder/upload/files/silatefedawebiniridevu.pdfIn PDF document text
    • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/e370f7225120db324e5f0d8a81fdf5be/duvovemoniziv.pdfIn PDF document text
    • https://www.leasing.net.in/ckfinder/userfiles/files/kimokizav.pdfIn PDF document text
    • http://cancercareresearch.com/userfiles/file/tugonozavowuvuroze.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622cf49817ce8---59472844060.pdfIn PDF document text
    • http://harissarantis.com/userfiles/files/febuvokewitimekavo.pdfIn PDF document text
    • https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/khaq64ai2gqrh4342r58vpbeo8/kemiwupatumazozofu.pdfIn PDF document text
    • https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16222a4367a0ce---249635780.pdfIn PDF document text
    • https://netwindowvn.com/uploads/userfiles/file/16757191878.pdfIn PDF document text
    • https://www.orthomaxindia.net/admin/kcfinder/upload/files/42639945288.pdfIn PDF document text
    • https://pgp-puh.hr/fck_media/file/zivasenulo.pdfIn PDF document text
    • http://bearbuy888.coco1490.com/upload/file_folder/file/fizaroxaxogi.pdfIn PDF document text
    • https://obo.olsztynek.pl/assets/includes/kcfinder/upload/files/viguzaxuwatixexuxibeta.pdfIn PDF document text
    • http://weldbook.net/upload/files/7476921453.pdfIn PDF document text
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/46fac4fb73751e275d2e020e720d9c09/nexaxapojadufeb.pdfIn PDF document text
    • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16200b9c239ac5---8688522831.pdfIn PDF document text
    • https://mandaljeebanking.in/ckfinder/userfiles/files/mumuloxomelapejub.pdfIn PDF document text
    • http://medlabtests.com/kcfinder/upload/files/bonifoxebi.pdfIn PDF document text
    • https://equinox-e.com/upload/UserFiles/file/3268611943.pdfIn PDF document text
    • https://dioss.eu/files/ckfiles/file/93799610769.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/uupipu95t8aluitrapejlrq486/tasipazos.pdfIn PDF document text
    • https://phatgiaolongan.com/upload/ckupload/files/9159215481.pdfIn PDF document text
    • http://1night2day.com/UserFiles/file/ziwimulagunurotagitof.pdfIn PDF document text
    • https://nsstore.mx/ckeditor/ckfinder/archivossubidos/files/rafosaxojusefuvawota.pdfIn PDF document text
    • http://getwealthythisyear.com/ckfinder/userfiles/files/sefipogu.pdfIn PDF document text
    • https://behbehaniprojects.com/uploads/files/xotedizagexoluwupodomorer.pdfIn PDF document text
    • http://erpsamik.com/ckfinder/userfiles/files/guwidabijedigizosesus.pdfIn PDF document text
    • http://hingliltd.com/userfiles/mewukevutabed.pdfIn PDF document text
    • https://neurooperations.com/ckfinder/userfiles/files/sunigopujowefujo.pdfIn PDF document text
    • http://egimmo.ch/kcfinder/upload/files/saninobogerojilasoxavigif.pdfIn PDF document text
    • https://hongmao.tw/uploads/files/202202110749382132.pdfIn PDF document text
    • http://snc.easy-event.net/img/uploads/files/5808539778.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_off0004f051.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004f051.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004f051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F051 10636 bytes
SHA-256: 0f7d72ea0847ff3d1ac72aff06f1bc10c0de4e11751df7ec46da2beb8b0825da
font_01_sfnt_off00050867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50867 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00051f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51F82 18196 bytes
SHA-256: b3cf442ba5d9deb9444a1a1d728f567996e65240a1c21debee6787048e3f94ae