Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddb817f3b072050…

MALICIOUS

PDF

330.7 KB Created: 2021-12-25 14:01:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 64c372d4837e72ba7e03a1e2d4445171 SHA-1: 0423fce8fad199b73766b3d27a3f5d9a37cd7457 SHA-256: 3ddb817f3b072050b78fc2a73d714346390c21f1ca5edf0bb3f1414ef37146f8
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7724

Heuristics 8

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147ed8b5e004---39836334246.pdf In PDF document text
    • http://gxzepu.com/userfiles/file/3676809821.pdfIn PDF document text
    • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16177e64229af2---1312888692.pdfIn PDF document text
    • http://unseretochter.com/images/file/kilemuwerukowusebanuxe.pdfIn PDF document text
    • http://veterinariacasettamattei.it/userfiles/files/74236681606.pdfIn PDF document text
    • https://partroyfuneralhome.com/partroy/assets/file/sogifokizimofulunaxe.pdfIn PDF document text
    • http://frutapac.es/ckfinder/userfiles/files/gawowawijowoxejaxufomin.pdfIn PDF document text
    • https://valeaflorilor.ro/img/uploads/file/10640941921.pdfIn PDF document text
    • https://wilocom.ro/ckfinder/userfiles/files/17644768565.pdfIn PDF document text
    • http://185.33.116.145/~acus01/upload/files/97149162218.pdfPDF link annotation
    • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16147bdfc1dd5d---sewavugus.pdfIn PDF document text
    • http://ekvatorbl.com/userfiles/file/wowaw.pdfIn PDF document text
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16183ec4d136ff---5211245159.pdfIn PDF document text
    • https://dermatologie-chamonix.com/userfiles/file/viwixemunamomevifani.pdfIn PDF document text
    • http://tehnicgaz.eu/files/file/62033080805.pdfIn PDF document text
    • http://xn----1-6cdapb2bdyqawnpcindqfc.xn--p1ai/media/file/22146355431.pdfIn PDF document text
    • https://vivantinvest.nl/userfiles/file/96260310134.pdfIn PDF document text
    • https://tarzminder.com/resimler/files/76398786913.pdfIn PDF document text
    • http://begemot-rus.com/uploadfiles/file/2021112814515273499.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e58d3a307---11470680174.pdfIn PDF document text
    • http://mackyz7automotive.com/js/upload/files/80182709973.pdfIn PDF document text
    • http://www.naoconsulting.fr/ckeditor/kcfinder/upload/files/xivipirajoniwugo.pdfIn PDF document text
    • https://nic-irq.com/userfiles/files/tawakofipuxifazobikadugef.pdfIn PDF document text
    • http://kiiga.ru/userfiles/file/menojapipikojikuze.pdfIn PDF document text
    • https://jjcfurnituremaker.com/userfiles/files/64771037891.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/cmwvf4RlXg4/uplcv?utm_term=he+bhagwa+rang+full+songPDF 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_off0004bb31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BB31 10620 bytes
SHA-256: 0ce085158a22bfd3496098191883b06c0263fa9a6fb74104313a473d043a3632
font_01_sfnt_off0004d373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D373 19068 bytes
SHA-256: 3cd1973612784f14fb6343418a7bc896e0e02f53ca2439545329c5b2b66b1eef
font_02_sfnt_off0005046e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5046E 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336