Malicious PDF — malware analysis report

Static analysis result for SHA-256 63403c5c13d4a596…

MALICIOUS

PDF

513.0 KB Created: 2022-02-18 11:49:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-28
MD5: 9a1067bea43342c64f6bef9acd542ad0 SHA-1: a3dcf003eead467c692da514d4e15bd8da4a3baa SHA-256: 63403c5c13d4a596c9d4c4184e422f3a8acf492cff69462a7b0e8d333219bc4b
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4421

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://tevav.co.za/XSRYdR1H?utm_term=first+information+report+police PDF link annotation
    • http://rs-entp.com/upload/file/liwuvofuwataxuratow.pdfIn PDF document text
    • https://www.sudoku-cool.com/ckfinder/userfiles/files/11859549854.pdfIn PDF document text
    • http://personnelstrategies.net/userfiles/file/78140805178.pdfIn PDF document text
    • https://etevent.itweald.com/uploads/files/61fd5d4b7a61e.pdfIn PDF document text
    • http://interstroy96.ru/uploads/files/68819558159.pdfIn PDF document text
    • http://afslab.asia/upload/files/molasesi.pdfIn PDF document text
    • http://sarinyaequipment.com/userfiles/file/sipopulujujababoninekoroj.pdfIn PDF document text
    • http://controlsystemco.com/cache/fck_files/file/jejarubufujidiluto.pdfIn PDF document text
    • http://sanmorales.es/userfiles/files/pujagudu.pdfIn PDF document text
    • http://nena-artspace.com/ckfinder/userfiles/files/13399834529.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/felgkqinco8ls6sdosf3ffn9j4/wogarowowazaridapal.pdfIn PDF document text
    • https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ae23504ee5f---13268377336.pdfIn PDF document text
    • https://matrixx.lu/images/xunupalodenoxevo.pdfIn PDF document text
    • https://ashleymongolia.mn/uploads/files/50378127333.pdfIn PDF document text
    • https://avukat.dnsaktif.net/upload/files/kabelaxuna.pdfIn PDF document text
    • https://a2designbg.com/userfiles/file/76156984121.pdfIn PDF document text
    • http://congtyvima.com/images/Download/35631973248.pdfIn PDF document text
    • http://gmixlocadora.com.br/admin/kcfinder/upload/files/woxusadojawu.pdfIn PDF document text
    • http://jornalespacoaberto.com/app/webroot/datafiles/editor/files/89906468171.pdfIn PDF document text
    • http://elite-nails.pl/Upload/file/luwibirodizovebuxidur.pdfIn PDF document text
    • http://thermogroup.ru/uploads/files/zafabewegunimuluk.pdfIn PDF document text
    • http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1616b0da9bda53---53018396512.pdfIn PDF document text
    • http://nprofit.hk/userfiles/lawavejineverevi.pdfIn PDF document text
    • https://vitanov.rs/files/80611680664.pdfIn PDF document text
    • http://johndanton.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/lobanori.pdfIn PDF document text
    • https://peusch.lu/userfiles/files/60857016555.pdfIn PDF document text
    • http://color-gateway.com/userfiles/file/sigiveweti.pdfIn PDF document text
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16156221121fb2---gajixokekelez.pdfIn PDF document text
    • http://zeguvietnam.com/uploads/ckfinder/files/buxapogibunibefafirewi.pdfIn PDF document text
    • http://a-mega.ua/images/uploads/file/kubaxirumiku.pdfIn PDF document text
    • http://medlabtests.com/kcfinder/upload/files/18510886244.pdfIn PDF document text
    • http://restravel.ru/ckfinder/userfiles/files/78948638089.pdfIn PDF document text
    • http://rocb-ap.org/file_media/file_image/file/ladewime.pdfIn PDF document text
    • http://www.biogreeno.com/cms/ckfinder/userfiles/files/86881203539.pdfIn PDF document text
    • https://inwestorfinanse.pl/userfiles/file/13654466045.pdfIn PDF document text
    • http://www.herbertvanderbrugghen.nl/draft/55293991134.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_off0007919a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0007919a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0007919a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7919A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0007a8b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8B5 19472 bytes
SHA-256: 8edcd8674e0cb2124e754b24f7b747718ea80c871f142188771e9da960f0b744
font_02_sfnt_off0007dbe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBE4 10620 bytes
SHA-256: bd8f2c1d7c4efc3106d89e477c380ce21e55b4ff5c687b67c9abac29a49db78f