Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d3372dd5886d68…

MALICIOUS

PDF

407.2 KB Created: 2022-02-25 13:55:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: c4067d0aee8c9905bfda44a9d5cdecbb SHA-1: 465560edbb68607d52dc29c5401caa5bb88e8763 SHA-256: c5d3372dd5886d68a9471a321f1cceb1bb1e920db825471e0dc72417bd6fe71e
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6197

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://mifuj.co.za/XSRYdR1H?utm_term=coldplay+viva+la+vida+flute+sheet+music PDF link annotation
    • https://burkina-businessschool.com/business_school/uploads/file/zukipadebogepowijewowogo.pdfIn PDF document text
    • http://mehmetrasimmutlu.com/icerik/file/25663281352.pdfIn PDF document text
    • http://bctlorraine.org/userfiles/file/kiwobapowoxudexawu.pdfIn PDF document text
    • https://ingatlanfelugyelet.hu/uploads/file/78164719133.pdfIn PDF document text
    • http://ozona.pt/wysiwygfiles/file/wobukisavevaruda.pdfIn PDF document text
    • https://tepatsasaran.com/contents/files/49016069020.pdfIn PDF document text
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161e5415186f21---34511629149.pdfIn PDF document text
    • https://pensiuneavalentina.ro/app/webroot/file/xanijulosaj.pdfIn PDF document text
    • https://arerp.kr/data/file///kojotumadato.pdfIn PDF document text
    • http://prochem.vn/images/uploads/files/kizenusi.pdfIn PDF document text
    • https://chinatupai.com/web/js/ckfinder/userfiles/files/65383988767.pdfIn PDF document text
    • https://newtech-utm.pl/userfiles/file/xejobutiwalugipokenod.pdfIn PDF document text
    • https://dorfadvertising.com/ckfinder/userfiles/files/64366785301.pdfIn PDF document text
    • http://svsteinfurth.de/radsportfiles/file/ratelibugeduzovulavikef.pdfIn PDF document text
    • https://jecoexports.com/ckfinder/userfiles/files/39506676671.pdfIn PDF document text
    • http://ux-school.ru/files/files/jeliwulotumalorilener.pdfIn PDF document text
    • https://conrays.ru/f/data/79164569376.pdfIn PDF document text
    • https://zenit-npk.ru/files/file/19560831669.pdfIn PDF document text
    • http://helpnri.org/kcfinder/upload/files/gosovipikuvawigoxuk.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161c2e585232a1---pajixinoxazu.pdfIn PDF document text
    • http://mjacz.cz/soubory/files/54965481190.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c94e06ed88---97940921430.pdfIn PDF document text
    • http://forsheda.se/admin/kcfinder/upload/files/kigurijasijegefotab.pdfIn PDF document text
    • https://ontozescentrum.hu/tmp/jubidenotidasurudorodemad.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ccbe594004---kagumuretazumekaboje.pdfIn PDF document text
    • https://servicenter.ro/ckfinder/userfiles/files/25906477017.pdfIn PDF document text
    • http://scvumaichiramen.com/uploads/files/wisutexenupoxa.pdfIn PDF document text
    • https://kinhdoanhvaphapluat.com/img-dn/files/wawisanajipubaravobidopop.pdfIn PDF document text
    • http://blue-balloon.pl/files/files/77114846417.pdfIn PDF document text
    • https://myleague.vn/uploadfiles/kcfinder/files/57053029799.pdfIn PDF document text
    • https://noticky.net/akce/fotky/file/livelamotiwe.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_off0005ea08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA08 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00060123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60123 18848 bytes
SHA-256: 465036541fbe2280c72b4c02c17bd40aa8a28812f2ff9b15168335c11e2e0baa
font_02_sfnt_off00063359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63359 10992 bytes
SHA-256: 690626bf64b9d6d88adfa107ea153e63c2848d6c0b9b49f5812fde43f6ad566f