Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea00d40935f5ffc4…

MALICIOUS

PDF

693.3 KB Created: 2022-03-26 09:03:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-12
MD5: b24db6f1bfe55ae8a46ef61324906b6d SHA-1: 1cc1102d999f9ef3d68d7a42f48edf10f9b8e34b SHA-256: ea00d40935f5ffc4a1ae3d1d478e3404e69b31c802555d7b6e9a1a1d46be03c8
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2572

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://letnaterasa.customreal.sk/data/files/xovowatidokabuvenajezazu.pdf In PDF document text
    • https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/7ba965eb06c12a65f96af7f26680f5db/85586454077.pdfIn PDF document text
    • http://sfipl.in/userfiles/file/49779257147.pdfIn PDF document text
    • http://com123.vn/uploads/file/24553352033.pdfIn PDF document text
    • https://lensprovn.com/ckfinder/userfiles/files/rixupezopepamutiva.pdfIn PDF document text
    • https://nhabe.com.vn/ckfinder/userfiles/files/97926889833.pdfIn PDF document text
    • http://garantc.ru/userfiles/file/zozuwu.pdfIn PDF document text
    • https://hungarogun.hu/feltoltes/files/kulopuvenemoxanukasul.pdfIn PDF document text
    • https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/93a4206eb48534f97f128859ab9a2bde/vuzuvamerixinuzivopuk.pdfIn PDF document text
    • https://dbmotorbrokers.com/userfiles/file/nubavubanukodibid.pdfIn PDF document text
    • http://simp-q.ru/userfiles/file/tibebirevukenavipebaro.pdfIn PDF document text
    • https://coombs.gocascadia.com/images/cms/file/36747625382.pdfIn PDF document text
    • http://anpamedical.com/kcfinder/upload/files/92603224093.pdfIn PDF document text
    • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/162154b595d839---45034893248.pdfIn PDF document text
    • http://krokodilok.hu/_user/file/78292988201.pdfIn PDF document text
    • http://drairtools.com/ckfinder/userfiles/files/sebulugijowofizofomaxob.pdfIn PDF document text
    • https://hilanguage-com-tw.triangle-design.com/files/92076191172.pdfIn PDF document text
    • http://kaoli88.com/upload_fck/file/2022-3-1/20220301165738324419.pdfIn PDF document text
    • http://www.icmtravel.net/assets/ckeditor/kcfinder/upload/files/20650419819.pdfIn PDF document text
    • http://jumpinfit.it/userfiles/files/koxugoxapafakukipok.pdfIn PDF document text
    • https://trouver-une-ssii.com/img/pics/files/70354467639.pdfIn PDF document text
    • http://salespate.com/userfiles/file/gatidupimiximamuziril.pdfIn PDF document text
    • https://netcsemege.hu/ckfinder/userfiles/files/seroful.pdfIn PDF document text
    • http://zespolbahamas.pl/zdjecia/file/18429952218.pdfIn PDF document text
    • https://vatlieuchongnong.baohohoanglong.com/userfiles/file/3426458975.pdfIn PDF document text
    • https://pima-alarms.eu/slicice/file/zigirifupebev.pdfIn PDF document text
    • https://nexusmediation.nl/files/jujukoxififadamitun.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/16215c0d8b47c4---67132705798.pdfIn PDF document text
    • http://bk-plus.at/userfiles/files/zonisuzigatiwobiv.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=infinity+war+comic+book+coverPDF link annotation
    • http://szigetkoz-vizitura.hu/admin/kcfinder/upload/files/48141452738.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 extracted file (font_00_sfnt_off000a5f91.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000a5f91.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000a5f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5F91 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000a76ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA76AC 19848 bytes
SHA-256: 77b6535ca4a6fc22aa4f63acbe29c25c776360734b1aaabe050a5e79950b41b5
font_02_sfnt_off000aab6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAB6B 10732 bytes
SHA-256: 7de0a3cffac153fd7a4955eaa81e493e18396fc3a4e3208275a4d0e0a7ce7eb9