Malicious PDF — malware analysis report

Static analysis result for SHA-256 4451e15d44149075…

MALICIOUS

PDF

237.5 KB Created: 2022-02-12 11:55:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 02a3f5017eacbf96a1e72fa5d325b78a SHA-1: 4958c4eaae0e54974d96b243a9be36e3872fdb26 SHA-256: 4451e15d441490757af6d21ca56f1434bf6a110bcfa96917d22bf5f1245f3c6e
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7517

Heuristics 7

  • 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.
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=sql+injection+cheat+sheet+authentication+bypass PDF link annotation
    • http://dvif.fr/userfiles/file/kizesatibopujagubuzabades.pdfIn PDF document text
    • http://chi-kara.net/userfiles/file/kitibipinopofixivodegel.pdfIn PDF document text
    • http://f-kcc.jp/user_data/userfiles/files/pemipetunowesovelese.pdfIn PDF document text
    • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1613e51b1e913d---53666537222.pdfIn PDF document text
    • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/t1ek5tbaact6pgd9ik96pju9l7/39200013636.pdfIn PDF document text
    • http://www.siphonicflowmandiri.com/upload/files/lusadekeluwipareloviba.pdfIn PDF document text
    • http://chretkinia.pl/userfiles/file/4192326748.pdfIn PDF document text
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/tnvep3o6oh92eaa484i60sn585/govuzosewagikobezikukaw.pdfIn PDF document text
    • http://patrick-jardinage.fr/ckfinder/userfiles/files/32920340918.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f6c6a215d1---33761445339.pdfIn PDF document text
    • http://piscesappliances.com/userfiles/file/16868505650.pdfIn PDF document text
    • https://beldapin.com/calisma2/files/uploads/83205828006.pdfIn PDF document text
    • http://ahdongjiu.com/upload_fck/file/2021-11-5/20211105025741578742.pdfIn PDF document text
    • http://alwaditrading.com/userfiles/files/12488863112.pdfIn PDF document text
    • http://www.kinoimaging.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161c7a24836b04---18134609175.pdfIn PDF document text
    • https://wspaperbag.com/userfiles/file/1415079480.pdfIn PDF document text
    • http://studiobonvino.com/userfiles/files/luduruviw.pdfIn PDF document text
    • http://coeb.eu/userfiles/files/21719818906.pdfIn PDF document text
    • https://inmaabiladi.com/userfiles/files/filevepurazukugusizudigan.pdfIn PDF document text
    • http://tsnpharma.com/upload/files/95304849224.pdfIn PDF document text
    • https://www.ijdsir.com/ckfinder/userfiles/files/disanifedopiwinu.pdfIn PDF document text
    • http://fundacjaproartis.pl/javascript/ckfinder/userfiles/files/rigiwobinovudezenilibize.pdfIn PDF document text
    • http://veedik.net/assets/admin/kcfinder/upload/files/giduxuzevibadutewodapa.pdfIn PDF document text
    • http://nofatrans-int.com/userfiles/file/18686966190.pdfIn PDF document text
    • http://ekorepetycje.eu/Upload/file/29020140707.pdfIn PDF document text
    • http://prochem.vn/images/uploads/files/fuxulupuzadizofujogo.pdfIn PDF document text
    • https://seeandhearbetter.ie/img/shop//contents/nevafawegajopazasolivu.pdfIn PDF document text
    • https://wita.lt/images/files/76378364340.pdfIn PDF document text
    • http://citadelcaralarms.com/userfiles/file/49802197387.pdfIn PDF document text
    • http://qdxqw.com/uploadfile/file/2163604695.pdfIn PDF document text
    • http://ywjxz.com/userfiles/image/2022/01/file/53134618174.pdfIn PDF document text
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/1a9c33d2c6703ed95f43f94ee1b20575/74124318303.pdfIn PDF document text
    • http://playos.net/data/playos.net/uploadfiles/file/zadikikuzifegara.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_off0003440c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3440C 11076 bytes
SHA-256: 63449ce0447648a97a983bd8798ab4f48957d94af55a38398cd92ce8445985b3
font_01_sfnt_off00035d8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35D8C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000374a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x374A7 18204 bytes
SHA-256: 5f313fa41dab211980b8174e75f9a342e2f7543835cafdf70d98384a594444e1