Malicious PDF — malware analysis report

Static analysis result for SHA-256 941a0c1c650516ba…

MALICIOUS

PDF

292.8 KB Created: 2022-04-29 06:48:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 546ac6b1fcafa8acd1ff9d0a7e8f4dc8 SHA-1: 8d753bc75546dce6d71c1754cf4899392eb529f1 SHA-256: 941a0c1c650516ba58faeb9264974115e36131488abe098fc0462fcc1c948d02
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple links, including one pointing to a compromised WordPress upload directory. The heuristic 'PDF_SEO_UTM_REDIRECTOR_LINK' indicates an image lure for free downloads, suggesting a phishing or malware distribution scheme. The embedded JavaScript likely facilitates the download or execution of a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7513

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. 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://ragaz.co.za/XSRYdR1H?utm_term=bootstrap+animated+cards+template PDF link annotation
    • https://perfecthospitals.com/FCKeditor/file/loxosixo.pdfIn PDF document text
    • http://potolokomsk.ru/ckeditor/kcfinder/upload/files/21011938478.pdfIn PDF document text
    • http://xn--b1agpbmdtf.xn--p1ai/upload/file/74228564617.pdfIn PDF document text
    • http://ctmmaximoravenna.com/ckfinder/userfiles/files/59479800100.pdfIn PDF document text
    • http://vmkmsz.hu/userfiles/file/48835520673.pdfIn PDF document text
    • https://futboltotal.net/images/files/mamutozivejogujefakogaxa.pdfIn PDF document text
    • https://www.bevillelecomte.ovh/ckfinder/userfiles/files/podigen.pdfIn PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1625be3eb92d3f---69882071541.pdfIn PDF document text
    • https://bringem.de/wp-content/plugins/super-forms/uploads/php/files/d7dc7d2fc894627acd1d52fa6ded352d/laxibogesonatalejikoma.pdfIn PDF document text
    • https://www.madenisg.org.tr/kcfinder/upload/files/69633474473.pdfIn PDF document text
    • https://aprenda-atdi.com/uploads/files/27520223253.pdfIn PDF document text
    • http://comfortreality.sk/userfiles/file/niguluk.pdfIn PDF document text
    • http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20220316_994C0915690A0BD5.pdfIn PDF document text
    • http://kamkmori.cz/ckfinder/userfiles/files/99219591147.pdfIn PDF document text
    • http://travelport.pl/userfiles/file/48051583784.pdfIn PDF document text
    • http://cgmorenanews.com.br/ckfinder/userfiles/files/85466510772.pdfIn PDF document text
    • http://mecateengenharia.com.br/ckfinder/userfiles/files/16386206151.pdfIn PDF document text
    • http://tns-china.cn/editor_upload_image/file/43265359783.pdfIn PDF document text
    • https://bestofbucerias.com/upload/file/turelisemebin.pdfIn PDF document text
    • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/16230f70fd9ffa---31780355137.pdfIn PDF document text
    • http://apatity.verlauf-ekb.ru/admin/ckfinder/userfiles/files/vimipujo.pdfIn PDF document text
    • http://www.comhairleuladh.com/uploads/files/kadexilujurenifema.pdfIn PDF document text
    • http://kimsanghun.com/upload/userfiles/file/2022312049490234.pdfIn PDF document text
    • http://xn--42ci4cc0aric4a6dd7c5af9nef7sg.com/userfiles/files/47108203180.pdfIn PDF document text
    • http://communication-pointcom.fr/userfiles/medias/99385653833.pdfIn PDF document text
    • http://www.romdom.pl/public/js/kcfinder/upload/files/wovuvexixuf.pdfIn PDF document text
    • http://studiotecnicoarduini.eu/userfiles/files/10242400468.pdfIn PDF document text
    • https://kingsnews.org/app/webroot/js/image/files/luwen.pdfIn PDF document text
    • https://sabagdasarov.ru/upload/file/70223842034.pdfIn PDF document text
    • http://www.aippc.net/kcfinder/upload/files/lenatepip.pdfIn PDF document text
    • http://laserinnsbruck.com/static/vemokukogoduzokoponujozu.pdfIn PDF document text
    • https://www.iconcollege.ac.uk/AdminPanel/public/ckeditor/kcfinder/upload/files/2813609948.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/fifihu2eh7iru0ntqpj9ir4ugt/98083068466.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_off000426a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x426A7 17328 bytes
SHA-256: 8921c100cacb415734a867ee948ebb6aa4bc02c6c35fd11b37b8674050a0e533
font_01_sfnt_off000452f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x452F6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00046b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46B0D 10728 bytes
SHA-256: 262d11547bf66e328b9bccb49726ad43cc0e13bc4d98e22d8c46e17b0dbe6397