Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af3574a267ebea0…

MALICIOUS

PDF

71.6 KB Created: 2022-04-08 20:42:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 09945996819586bf57532ff73a0349bb SHA-1: cb7ac710dd5fe002b03577d8165b4f61b1a79999 SHA-256: 4af3574a267ebea0b99b6c668911e46b94767b7fad56c655d8b41e96a633fb47
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://norin.co.za/YmrXLWy8?keyword=south%20west%20water%20insurance PDF link annotation
    • https://zobawejifeli.weebly.com/uploads/1/3/4/4/134458567/puvokaxuboja_kalutaloledo_punuwatekumijos.pdfIn PDF document text
    • http://chinhsuasolieu.com/media/files/89042289393.pdfIn PDF document text
    • https://gajodugibo.weebly.com/uploads/1/3/4/6/134635488/84085351db93e2.pdfIn PDF document text
    • https://xepidazezupos.weebly.com/uploads/1/3/5/3/135343087/9312491.pdfIn PDF document text
    • http://xn--vb0b83rba554gca.kr/page_data/file/20220309214942.pdfIn PDF document text
    • http://geofer.eu/userfiles/files/29189498427.pdfIn PDF document text
    • https://timivoza.weebly.com/uploads/1/3/5/3/135315173/gikufoxelerurakusole.pdfIn PDF document text
    • https://vemozanuw.weebly.com/uploads/1/4/1/3/141377150/8494143.pdfIn PDF document text
    • http://thietkevang.com/upload/files/xejinomuxokusivilovalogo.pdfIn PDF document text
    • https://maintogelonline.bet/contents/files/52997912689.pdfIn PDF document text
    • https://nojijakifon.weebly.com/uploads/1/3/4/0/134012839/d7207cc.pdfIn PDF document text
    • http://soncongnghiepjotun.com/media/ftp/file/popawiboxivagexex.pdfIn PDF document text
    • https://conventualsindia.org/ckfinder/userfiles/files/dimuxubukagijegew.pdfIn PDF document text
    • http://pravkniga.ru/files/userfiles/files/bikonimenexojikako.pdfIn PDF document text
    • http://wjvanderheidedienstverlening.nl/uploads/file/juxosokexoxurube.pdfIn PDF document text
    • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/36c844c1b985a6d4c4ed8777d8e81724/65540867456.pdfIn PDF document text
    • http://come2menorca.com/images/file/98256392680.pdfIn PDF document text
    • https://davuxafaketasix.weebly.com/uploads/1/3/4/7/134716677/a0c8866483bf9.pdfIn PDF document text
    • https://gobiduromom.weebly.com/uploads/1/3/4/6/134660247/4919323.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_off0000b639.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB639 10540 bytes
SHA-256: 264759f7e549b009de38d783ad907d744800a6f4bae5c4718a90b70ca944bc89
font_01_sfnt_off0000ce4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE4B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000e65d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE65D 16732 bytes
SHA-256: f01b3213e3ed1a485afac8b7cfa2b000399b1449b5bf678b9e0ea41eefdabb3f

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