Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1b9ce959c9933c…

MALICIOUS

PDF

230.9 KB Created: 2022-03-19 01:09:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 0a3aa89843c1163338919baa16ee3094 SHA-1: 04211ba93914ee73589a7b9677e8a37e6a717c4f SHA-256: 5a1b9ce959c9933c88e088a2637f9055fa9e4919f2d4fc34b18de28f0cbffb60
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7434

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=eosinophilic+esophagitis+treatment+guidelines PDF link annotation
    • https://gymlesgeants.com/upload/editor/file/pimabixironaz.pdfIn PDF document text
    • http://saopauloairporttransfers.com/ckfinder/userfiles/files/kigizovonokuvilulal.pdfIn PDF document text
    • http://kfgame.snailgame.ru/upload/files/20220315234950.pdfIn PDF document text
    • https://grandplaza.bg/uploads/assets/file/menarezapukedug.pdfIn PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/16225ed4fe8502---rirujeresitalaf.pdfIn PDF document text
    • http://www.musicboxpiano.com/contentfiles/gedizewimalisuxok.pdfIn PDF document text
    • https://www.alfalahmedical.org/c_panel/ckeditor1/ckeditor/kcfinder/upload/files/57955823898.pdfIn PDF document text
    • http://immobilieninvestors.de/userfiles/file/33737645304.pdfIn PDF document text
    • http://tipsclubcr.com/campannas/file/pipunesav.pdfIn PDF document text
    • https://open-call.fr/uploaded/files/39999251466.pdfIn PDF document text
    • https://auditorescr.com/ckfinder/userfiles/files/37523991665.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16204c36dabd3e---75825924054.pdfIn PDF document text
    • http://hankook-system.com/userData/ebizro_board/file/rizoduwesupifinarufip.pdfIn PDF document text
    • https://diamond-marketing.cz/soubory/89078186373.pdfIn PDF document text
    • http://nincity.de/inline/file/78585758158.pdfIn PDF document text
    • https://chennothinterios.com/uploads/file/latabas.pdfIn PDF document text
    • http://tuyendung.btccorp.vn/uploads/files/38932079477.pdfIn PDF document text
    • http://thanhnhomdinhhinh.net/uploads/files/9420001084.pdfIn PDF document text
    • http://dsfly.com/uploads/files/10163677073.pdfIn PDF document text
    • https://www.ssemusic.com/kcfinder/upload/files/sutafu.pdfIn PDF document text
    • https://abrasco.org.br/ckfinder/userfiles/files/lijifelefezugozonojimegam.pdfIn PDF document text
    • http://iviltra.lt/images/files/jazanarugetajojolo.pdfIn PDF document text
    • http://leeclinic.kr/userData/board/file/54264004529.pdfIn PDF document text
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620b1677a7f43---tolubatib.pdfIn PDF document text
    • http://vinhomeshaiphong.net/app/webroot/img/files/lujono.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1621d6f433a15d---60045470392.pdfIn PDF document text
    • http://www.vyroba-plastovych-bazenu.cz/upload/files/37167826180.pdfIn PDF document text
    • http://www.majbrno.cz/uploads/files/puxujemorajozi.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/qdhsr47ml8vpdl57frcljo1g2p/xojoxegivukelanexomixuwe.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_off00032c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C9B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000343b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x343B6 18076 bytes
SHA-256: e276a179276f4b07e22b410ba361bb68e7c4ed2787c9b79549018049d222fd84
font_02_sfnt_off000372a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x372A3 11044 bytes
SHA-256: 81333142343c2b901062185906b1e3c8814f2aaa26aa3a3fbdffd68a8f7a4dd4