Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dde03cad27cb19…

MALICIOUS

PDF

317.3 KB Created: 2022-03-22 20:10:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: c7baa62316f880ab399103152ce78a2a SHA-1: 01524ab3eeec603bde45d5da433c92604b10c0f0 SHA-256: c5dde03cad27cb193b6e9e1a2d7314b58bbaa7ae51ef7d53726b433f96c05d23
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7511

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://loheb.co.za/XSRYdR1H?utm_term=estaban+guitar+lessons PDF link annotation
    • http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/162189a8ce854b---85286017786.pdfIn PDF document text
    • http://cgmorenanews.com.br/ckfinder/userfiles/files/32669489475.pdfIn PDF document text
    • http://www.corazondelsol.es/ckfinder/userfiles/files/24355350397.pdfIn PDF document text
    • http://kvaltex.cz/files/file/78587162150.pdfIn PDF document text
    • http://kstarsmall.net/userfiles/file///woginesoj.pdfIn PDF document text
    • http://shijijiaming.net/filespath/files/20220323004929.pdfIn PDF document text
    • http://man-shoes.moscowfashion.net/content/xuploadimages/file/65796761921.pdfIn PDF document text
    • http://jcsh.bluezp.com/ckfinder/userfiles/files/33219606019.pdfIn PDF document text
    • https://xuanhongkhang.com/upload/files/70017985705.pdfIn PDF document text
    • http://clanlogging.com/images/fck/file/xuvunuvewibiba.pdfIn PDF document text
    • http://kubablimel.pl/Image/files/wenijirexe.pdfIn PDF document text
    • https://cira.thinkabit.net/downloads/files/vunus.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/16213b77e0e7cc---vusob.pdfIn PDF document text
    • http://etyekilovarda.hu/userfiles/file/66494454570.pdfIn PDF document text
    • http://corpinal.com/kcfinder/upload/files/89358184829.pdfIn PDF document text
    • http://ain.proximeo.com/ckfinder/userfiles/files/rezubasevowopiziruze.pdfIn PDF document text
    • https://datatech-int.com/userfiles/file/bifazip.pdfIn PDF document text
    • http://moscowcharm.com/content/xuploadimages/file/38796482764.pdfIn PDF document text
    • http://alituncer.com/userfiles/file/mokamuvute.pdfIn PDF document text
    • http://cmtsport.com/pliki/nefazade.pdfIn PDF document text
    • https://cahayaapi1.com/contents/files/rizebowor.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/44325abbf8b72f83e5f8baa8e8e152b3/gogazazogadepalevodute.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/58ae190d0b4fb839abe2069178c2d493/35542768820.pdfIn PDF document text
    • http://otticagries.it/custom/archivio/files/3084082491.pdfIn PDF document text
    • http://www.klasikmoto.sk/admin/ckeditor/kcfinder/upload/files/tirafozimuvizamivipomafe.pdfIn PDF document text
    • https://activepymes.com/pub/file/xusojominuruxij.pdfIn PDF document text
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/16236c63fb3ad5---tebugopiduju.pdfIn PDF document text
    • http://imobilestore.de/userfiles/file/merajil.pdfIn PDF document text
    • https://medbillings.us/lightspeedweb1/file/39202391920.pdfIn PDF document text
    • https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1621e6ab004cb9---wawodinevizolale.pdfIn PDF document text
    • https://www.ibericaseguridad.com/admin/kcfinder/upload/files/25047048485.pdfIn PDF document text
    • http://dochoiotovn.com/uploads/userfiles/file/kutap.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_off00047b4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47B4D 10504 bytes
SHA-256: 98347bd1cdeebc065941ec85f17f9c763b5feefc5bf2d63f7e3c13d30d5d6ead
font_01_sfnt_off00049351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49351 22144 bytes
SHA-256: a9e95df645644633c02b988b39aec305e871da81e0fe2734c0c9465d57f57913
font_02_sfnt_off0004ce03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CE03 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9