Malicious PDF — malware analysis report

Static analysis result for SHA-256 624b67bae5b27d0e…

MALICIOUS

PDF

369.5 KB Created: 2022-02-09 12:10:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-29
MD5: 3a29902afa532542985e6e6cd9fba05e SHA-1: 870ceb2fe747e0b1b7399afc16412127cd63ad30 SHA-256: 624b67bae5b27d0e2468bfcbcacfec551412a71721327d899c0527656416d2a6
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6606

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=consumer+reports+worst+auto+repair+shops PDF link annotation
    • http://hurtmar.pl/Upload/file/buzodower.pdfIn PDF document text
    • http://hylimusic.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/66914356341.pdfIn PDF document text
    • https://thuhuonglacquer.com/uploads/news_file/25079655934.pdfIn PDF document text
    • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/162036892719a3---31432820297.pdfIn PDF document text
    • https://www.domaine-vrignaud.com/ckfinder/userfiles/files/16024905131.pdfIn PDF document text
    • http://autoskola-weiss.cz/userfiles/80047795098.pdfIn PDF document text
    • https://hexema.com/FCKeditor/file/54778311477.pdfIn PDF document text
    • http://eca.or.th/ckfinder/userfiles/files/jokudimusukuribumafi.pdfIn PDF document text
    • http://jca-t.com/fck_image/file/molafufotefolowil.pdfIn PDF document text
    • http://macierz-grodziec.org/files/file/mevekososoxumine.pdfIn PDF document text
    • http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161b8c8810a097---67108296510.pdfIn PDF document text
    • http://tnetimes.kr/upload/file///kezukisameligonipinunudan.pdfIn PDF document text
    • http://bikipvuikhoedep.com/app/webroot/files/editor_upload/files/nigudoputagozi.pdfIn PDF document text
    • http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/4e9c2c21c772bc96204b4f02f1bbce82/nuvogakoreduwuw.pdfIn PDF document text
    • https://olterus.org/contents/files/65613007129.pdfIn PDF document text
    • http://htwy.com/upload/file/42499965588.pdfIn PDF document text
    • http://highgaincomposites.com/img/file/2021714152652.pdfIn PDF document text
    • https://prestinieurope.ch/userfiles/files/zevikivividibima.pdfIn PDF document text
    • http://sistersaviopublicschool.com/userfiles/file/24222591687.pdfIn PDF document text
    • http://newworldss.com/uploads/file/fazaderu.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ca1a63e126---wuvedisibawun.pdfIn PDF document text
    • http://andlupa.com/userfiles/file/86247491044.pdfIn PDF document text
    • http://grimastone.ru/files/32053912821.pdfIn PDF document text
    • http://andlupa.com/userfiles/file/zisuxiditipofabotew.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_off0005546b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5546B 19564 bytes
SHA-256: a9a968253a2db3fb9906bae473de4c324fe275419694273bf12f303d87644f50
font_01_sfnt_off0005873f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5873F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00059e5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59E5F 10688 bytes
SHA-256: 88d113d88d3b6bec2314ffc8d01d6e6759249ec6290c603183ad7ce5e39795e0