Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3c8cf3aa986418…

MALICIOUS

PDF

264.2 KB Created: 2022-03-16 02:43:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 639069f89838c5158cd7b86e9eab0884 SHA-1: 1d136ae19adec93637aab65962528c326e2b7794 SHA-256: 0d3c8cf3aa986418418b7f5963222a1f088beaf81916376ca2ad18cb62a41405
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded JavaScript and multiple external URLs, including one pointing to a compromised WordPress site, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded JavaScript likely facilitates the download and execution of a second-stage payload from the identified URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6316

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://tevav.co.za/XSRYdR1H?utm_term=cassandra+for+windows+8.+1+64+bit PDF link annotation
    • http://taiwanquinoafamily.com/shopadmin/upload/files/kebabo.pdfIn PDF document text
    • https://braindevelopmentmaps-org.neurondevelopment.org/userfiles/files/12754961129.pdfIn PDF document text
    • http://exms.fr/sites/default/files/file/84159348389.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/3e1f0190145008fb7f5d152e79cd5407/21217287373.pdfIn PDF document text
    • https://equator-maritime.com/userfiles/file/94476410549.pdfIn PDF document text
    • https://www.datacom.com.br/assets/admin/ckeditor/kcfinder/upload/files/jokulogobalemizajo.pdfIn PDF document text
    • http://studiozammuner.eu/userfiles/files/salijixeletexejozuvud.pdfIn PDF document text
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621026563246e---kemotojatevopubudaxeset.pdfIn PDF document text
    • http://belovosushi.ru/files/wewivejaduzilezetizowap.pdfIn PDF document text
    • https://e-s-c.fr/lib/ckeditor/kcfinder/upload/files/dewubijetijifewarule.pdfIn PDF document text
    • http://hotelparkplaza.in/app/webroot/js/kcfinder/upload/files/9566660836.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16221c5de3be3e---86428578629.pdfIn PDF document text
    • http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16210c55c35bdb---mareporufawowux.pdfIn PDF document text
    • http://fnb-concepts.com/images/uploads/files/24018554406.pdfIn PDF document text
    • http://hotelpenza58.ru/ckfinder/userfiles/files/17722770646.pdfIn PDF document text
    • https://wonkingchina.com/d/files/30610814405.pdfIn PDF document text
    • https://sagarexpress.com/userfiles/file/disewemirobe.pdfIn PDF document text
    • http://emannsltd.com/userfiles/68570993216.pdfIn PDF document text
    • http://studiolorenzino.eu/userfiles/files/15491992480.pdfIn PDF document text
    • http://nerezove-kuchyne.cz/UserFiles/File/wawilosurotomesote.pdfIn PDF document text
    • http://hipscycle.simplywebeditor.com/site-uploads/72567849460.pdfIn PDF document text
    • https://basisnomor.com/contents/files/75328885228.pdfIn PDF document text
    • http://makaroma.fr/upload/file/11532776393.pdfIn PDF document text
    • http://netcentricnj.com/ckfinder/userfiles/files/wuguve.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/9670121482.pdfIn PDF document text
    • https://www.nysc.lk/dmin/include/ckeditor/kcfinder/upload/files/31193088232.pdfIn PDF document text
    • http://grafika.szklo-lux.pl/nowa/userfiles/file/52963389422.pdfIn PDF document text
    • http://kargo-box.com/uploads/files/30948866837.pdfIn PDF document text
    • http://motopujcovnateplice.cz/userfiles/file/nobakefubigo.pdfIn PDF document text
    • https://bashmak55.ru/ckeditor/kcfinder/upload/files/17719060669.pdfIn PDF document text
    • http://vietnaminsight.biz/ckfinder/userfiles/files/83446788845.pdfIn PDF document text
    • http://style4.allwebeasy.com/userfiles/files/kuvelakovobiku.pdfIn PDF document text
    • http://ancheng-medical.com/uploadfile/files/24485930475.pdfIn PDF document text
    • http://polletnv.be/uploads/files/jepanatotatoxirumixeduv.pdfIn PDF document text
    • http://xn----7sba5bgeydgh6hd.xn--p1ai/upload/files/nifuj.pdfIn PDF document text
    • https://shturnev.com/files/foFKED/file/13769849508.pdfIn PDF document text
    • https://kingcom.edesign.fr/gr33/web/uploads/assets/file/18992476626.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_off0003b14a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B14A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0003c86a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3C86A 10996 bytes
SHA-256: 19fc7bb8fcbe243aab12f8db0a9f17da38a080c0745dc000fd5e65285ca03888
font_02_sfnt_off0003e234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E234 17900 bytes
SHA-256: 83c32b4765bcbbf4321960686c71317690b4cdad93600416601b493985b8e344