Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a6f6922f43ff81…

MALICIOUS

PDF

286.2 KB Created: 2022-02-10 04:10:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: f390ba90a044f7962090056aa349eb3a SHA-1: 4194ff1fa40cfc4aaed3284d62b286d4c6bb4dcf SHA-256: 18a6f6922f43ff81809248d8dedca7d1817532cb7101c9bd252492059812f1c7
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8625

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://bushurov.ru/images/files/dixamewemazivuperugesav.pdf In PDF document text
    • https://gbp.dropship-online.com/userfiles/files/65116147106.pdfIn PDF document text
    • https://www.ssemusic.com/kcfinder/upload/files/73055131758.pdfIn PDF document text
    • http://dekobonner.de/userfiles/file/ranomip.pdfIn PDF document text
    • https://bdblue.com/ckfinder/userfiles/files/duvor.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160eff1e3f1b06---lukepilanu.pdfIn PDF document text
    • https://ximangcampha.vn/upload/files/55460303183.pdfIn PDF document text
    • https://imaggu.com/ci/userfiles/files/nunukoxujojipi.pdfIn PDF document text
    • http://www.dinapart.net/frontend/web/kcfinder/upload/files/51869926946.pdfIn PDF document text
    • https://vienhung.com/webroot/img/files/57980976594.pdfIn PDF document text
    • https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/lazokiluzumison.pdfIn PDF document text
    • https://sanagustin.cl/files/ziwalelewu.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/b8gq57d7mlep91v12u0d7ou585/55990409919.pdfIn PDF document text
    • https://kawanmto.com/contents/files/84198953093.pdfIn PDF document text
    • http://ylphs.com/ckfinder/userfiles/files/28260718622.pdfIn PDF document text
    • http://fotocaroli.it/userfiles/files/47829806647.pdfIn PDF document text
    • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/c7e0fa386f35f8f396f49b8ae2de3f75/zoradakopijorutozivu.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=chirugali+naa+songs++comPDF link annotation
    • http://royal-pizza.eu/files/file/majafojeduwu.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_off000409e8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000409e8.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000409e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x409E8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00042103.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42103 19204 bytes
SHA-256: 27d197dfe30c58a3ce57531c9f1accd1a68b5460be8236a85f1a0cfa17a6d65e
font_02_sfnt_off00045277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45277 10576 bytes
SHA-256: 92bf9b001fa37949534ad4e7335f3c9cc4ff5c5b14190a6648bbf22de5addc00

Open this report in the interactive analyzer, or submit your own file for analysis.