Malicious PDF — malware analysis report

Static analysis result for SHA-256 5503050676cd6252…

MALICIOUS

PDF

196.9 KB Created: 2022-03-03 07:45:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-04
MD5: 9db1eaebf4b7aa5ebfdee5bed79333b1 SHA-1: 335befc355ab329b39e3c2c5744f30126978a2c5 SHA-256: 5503050676cd6252293f6b70c6388c4151bd6a9e34bcd0d271c0e6993bfae779
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9305

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 http://myxroad.net/upload/userfiles/file///78399363561.pdf In PDF document text
    • http://factorycontrolprojects.com/userfiles/file/darot.pdfIn PDF document text
    • https://xn--fct8ml6mwue.tw/uploads/files/baxakab.pdfIn PDF document text
    • http://zavalinka.by/var/upload/file/dutepemu.pdfIn PDF document text
    • https://fcksa.com/ckfinder/userfiles/files/xamadeba.pdfIn PDF document text
    • https://thuaphatlaihoanghuy.com/uploads/files/viderexamutiwatulibi.pdfIn PDF document text
    • http://sdruzeniprojablonne.cz/userfiles/files/77878066970.pdfIn PDF document text
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/16201853a1621c---jenaxuxuvoxometexes.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161f888937ef10---zenujonub.pdfIn PDF document text
    • http://standdominica.org/files/files/39435696126.pdfIn PDF document text
    • https://upsoul.com.br/assets/kcfinder/upload/files/rogoxizugefejapefapiga.pdfIn PDF document text
    • http://healhumanity.foundation/userfiles/file/vumipegakunuvonumow.pdfIn PDF document text
    • http://cungcapbaoduongcuanhatban.com/upload/files/ganenemij.pdfIn PDF document text
    • http://4chan.ro/UserFiles/file/72837131239.pdfIn PDF document text
    • http://fuguchair.com/upfolder/e/files/20220225143735.pdfIn PDF document text
    • http://integrotech.pl/zdjecia/file/91927965619.pdfIn PDF document text
    • https://www.amc-lda.com/assets/kcfinder/upload/files/96938142004.pdfIn PDF document text
    • http://yuhenganquan.com/userfiles/file/20220208064431_1094952169.pdfIn PDF document text
    • http://professionalcsali.hu/admin/ckeditor/kcfinder/upload/files/81607031955.pdfIn PDF document text
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/aacf41e39d24e2b340fdeafadbe7b8bf/mewuwosido.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/161f86b8fedd9b---nunixoxuza.pdfIn PDF document text
    • http://gorre-paysage.fr/ckeditor/kcfinder/upload/files/37304014440.pdfIn PDF document text
    • https://podar.co.za/XSRYdR1H?utm_term=linear+sequences+differentiated+worksheetPDF link annotation
    • 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_01_sfnt_off0002a444.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_01_sfnt_off0002a444.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00027b74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27B74 13504 bytes
SHA-256: a0c06b179127700703764be570ebaa3b6eb4c5799c3a55a3bbe49ebe2c8bfa05
font_01_sfnt_off0002a444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A444 10908 bytes
SHA-256: 092c3363959c68a9e24ff1bd641158d8b515d080dafe771186b29d95940f96d4
font_02_sfnt_off0002bd59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD59 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off0002d474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D474 18268 bytes
SHA-256: d1f7096d41fffeed69eebb16e8b13f36a3e4e0f0ca0111f9c4adecc949216bb8