Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd091db0e2f06de…

MALICIOUS

PDF

309.1 KB Created: 2021-12-20 15:50:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: d754c6da04c9247f5865ca251f71cc2d SHA-1: 1d3c8139e4f40b2f8f33a8d967e2646a0e06322c SHA-256: 3dd091db0e2f06de28f5a66daeaaccb62429c003196b839dcd46aa5ea91e2876
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7334

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 http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/5331be00012ba36e3ec76782d4a04ec0/57333036627.pdf In PDF document text
    • http://xn--299a941ap1h.com/userfiles/file/20210930203132.pdfIn PDF document text
    • http://www.kyousei-fukushi.or.jp/system/ckfinder/userfiles/files/turorebadugurofu.pdfIn PDF document text
    • http://beerskiboot.de/img/upload/file/beluxamo.pdfIn PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/16140ac006f59b---sutuduxavugi.pdfIn PDF document text
    • http://gartenbaukoeln.de/uploads/files/karoxiror.pdfIn PDF document text
    • http://hadjtaharsteel.com/app/webroot/js/kcfinder/upload/files/musim.pdfIn PDF document text
    • http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202110171312178984.pdfIn PDF document text
    • https://hockeymro.ca/docs/file/3969413779.pdfIn PDF document text
    • https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1618f0e32d5ac7---zudafivedixan.pdfIn PDF document text
    • http://yer-krasnodar.ru/ckfinder/userfiles/files/polelu.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b1295b25c55---bekejegotaduzolopavibef.pdfIn PDF document text
    • http://citty.org/images/uploads/file/67822670168.pdfIn PDF document text
    • https://yingzhaoliuart.com/upload/file/32865396982.pdfIn PDF document text
    • http://ez-surveying.com/htdocs/cljr/data/files/98608105154.pdfIn PDF document text
    • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/351ef807a78432cf7ec229f050cae59e/257907130.pdfIn PDF document text
    • http://cerescommoditiesltd.com/Images_upload/files/begujobotogifisetexusa.pdfIn PDF document text
    • http://ekonopuntos.com/campannas/file/94594186637.pdfIn PDF document text
    • https://excellencetogether.com/img/files/file/70604836095.pdfIn PDF document text
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/a6de68c8d486873ede473600e22d1f66/81525720781.pdfIn PDF document text
    • http://xn--80aafbanafwvcftiqfecrg2a.xn--p1ai/pict/file/31963749766.pdfIn PDF document text
    • https://malmospelmanslag.se/userfiles/file/duzetodusosirokarop.pdfIn PDF document text
    • http://cukierniabrzezinski.pl/www/artizam/fck/file/16790906300.pdfIn PDF document text
    • http://maturitni-ples.eu/UserFiles/File/dapigibogexugumalodarel.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/HTGXzuRVGb4/uplcv?utm_term=agya+bekas+2016+manualPDF 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 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_off000468e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x468E2 17080 bytes
SHA-256: 1292f62310d23f71744810c314ca5f834e8e74ad8f0afa62bd64048b243a22df
font_01_sfnt_off00049573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49573 10932 bytes
SHA-256: a63049d12ed388d2de4069c72c55f7f7f73da0ac46fd9d0a6c79d731b38d76e9
font_02_sfnt_off0004aef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AEF2 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336