Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dda7f6c0e8ea384…

MALICIOUS

PDF

546.8 KB Created: 2022-03-05 00:34:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: fb304dc6deec297267a0e6dc3dbc9e02 SHA-1: 9aec120f03c431936a184f4e7ee30dcb978e363f SHA-256: 3dda7f6c0e8ea3840b78d81b0b281c6d38a9dd4f0a970ad44ee2fcfd4066e8b7
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4831

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 https://lazav.co.za/XSRYdR1H?utm_term=nytimes+daily+mini+answers PDF link annotation
    • https://nnt52.ru/userfiles/file/1236491443.pdfIn PDF document text
    • http://jezirka-biobazeny.cz/UserFiles/File/46742723221.pdfIn PDF document text
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620599165f69f---33747760066.pdfIn PDF document text
    • http://spzn.narewka.pl/narewkagmina/userfiles/file/28829035172.pdfIn PDF document text
    • https://www.champagne-cornevin.fr/ckfinder/userfiles/files/malonuwagotazuvuzitesana.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621fdce6b9798---vabitaloxarujavumosu.pdfIn PDF document text
    • https://gcr.goldcrownresort.com/magazine_files/files/wevawimawarujitugixe.pdfIn PDF document text
    • http://magdrywall.com/project-new/christianbook/upload_images/file/20074279474.pdfIn PDF document text
    • http://geshome.co.jp/cmsdesigner/kcfinder/upload/files/vopepepilarerex.pdfIn PDF document text
    • https://roundtable106trust.org/admin/uploads/file/juzosetorixuti.pdfIn PDF document text
    • http://www.sman1batusopang.sch.id/asset/kcfinder/upload/files/83413285519.pdfIn PDF document text
    • http://neuroxl.com/images/file/63969828674.pdfIn PDF document text
    • https://bazab.ru/ckfinder/userfiles/files/39609561585.pdfIn PDF document text
    • https://mantyobras.com/userfiles/file/wadupigevarawatesefamipif.pdfIn PDF document text
    • http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fbd12d64b69---45250775796.pdfIn PDF document text
    • http://coming-c.com/userfiles/file/49319989980.pdfIn PDF document text
    • http://www.kigimex.com.vn/ckfinder/userfiles/files/gofojoxidulokodawiji.pdfIn PDF document text
    • http://artpolinakuzina.ru/pict/file/lowax.pdfIn PDF document text
    • https://m-astar.com/UserFiles/files/77288237060.pdfIn PDF document text
    • https://rwd.webseo.tw/upload/files/70981371042.pdfIn PDF document text
    • http://fermobkorea.com/userfiles/file/20220211100941.pdfIn PDF document text
    • https://dreesmann-foto.de/userfiles/file/vebejekuporalifimijuro.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_off00081660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81660 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00082d7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82D7B 21156 bytes
SHA-256: 2e3e5874b5777ff877051cf57cc9ee2ad365cfa56b7d97258e759c70289eb638
font_02_sfnt_off000864ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x864ED 10464 bytes
SHA-256: 5b5884ebe960a2cb5f505b0e5c047c917e38ab5b476f5ea225a9bfb9864159d0