Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd71ce7f20b2bd54…

MALICIOUS

PDF

417.6 KB Created: 2022-02-21 20:46:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 214a22da69e4a3a9b4a5e380260244c0 SHA-1: 5c75bcf9ae16d382a22963a0c3a305159ce6718e SHA-256: cd71ce7f20b2bd5494b65c59e5ff90c3277d7c5e9c6fcfaa082e6a05a5217f2b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5142

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://fecuq.co.za/XSRYdR1H?utm_term=attack+on+titan+eren+transformation+theme PDF link annotation
    • http://jet-boilers.ru/kcfinder/upload/files/60218569974.pdfIn PDF document text
    • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/dfband3vfi7enpb0nn7hun0ic3/82446814141.pdfIn PDF document text
    • http://ludothequelancy.ch/kcfinder/upload/files/xomoxitirisevabetaposovof.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161dcaffda3cba---28148419182.pdfIn PDF document text
    • https://iringmalaysia.com/ckfinder/userfiles/files/nefaguvetese.pdfIn PDF document text
    • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/e1b5f1c6b17ac9e382fd8874ce455f7b/mikemabak.pdfIn PDF document text
    • https://royal-art.pl/uploads/userfiles/files/75914407142.pdfIn PDF document text
    • https://aykutemlak.com/upload/ckfinder/files/musofemovapekasaka.pdfIn PDF document text
    • http://ekorepetycje.eu/Upload/file/zafezi.pdfIn PDF document text
    • https://fsbulletsandbrass.com/userfiles/files/84018859352.pdfIn PDF document text
    • https://its-bulgaria.bg/files/file/minivitogeberixotov.pdfIn PDF document text
    • https://www.cvr2021.scrs.in/kcfinder/upload/files/jawekenebojowide.pdfIn PDF document text
    • http://inistor.com/ufiles/files/wuvinugokazojiwaxuf.pdfIn PDF document text
    • http://transporteslaplata.com/imagenes_web/file/lufapuxeziro.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1618e59d864566---67818830690.pdfIn PDF document text
    • http://indianspringhomes.com/userfiles/files/82951418629.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b07e3d193ad---rovovir.pdfIn PDF document text
    • http://quangcaosms.org/media/ftp/file/wilawenivafirujivufime.pdfIn PDF document text
    • http://thaoduocquyhiem.com/userfiles/image/file/dinoxetasemiren.pdfIn PDF document text
    • http://aaykpn.com/uploads/editor/files/musidaputopipokizojo.pdfIn PDF document text
    • http://clinivetmadonnadirosa.eu/userfiles/files/10520654243.pdfIn PDF document text
    • http://lidaoxc.com/upload/files/44958553388.pdfIn PDF document text
    • https://markyatirim.com/resimler/files/12811537466.pdfIn PDF document text
    • https://jecoexports.com/ckfinder/userfiles/files/9688652807.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_off00061649.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61649 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00062d64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D64 18876 bytes
SHA-256: da29c5ac00c6e93985498097c29f4a551b9e349db3e724fdc8fdf82dc79bd312
font_02_sfnt_off00065e9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E9B 10628 bytes
SHA-256: e46547d6a7064a20c88127f0eab001517e27fbe1408b2c8c37f7e3817b10ef77