Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd6e45d3aa1c228…

MALICIOUS

PDF

80.6 KB Created: 2021-09-14 01:33:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 072ea735aededee7f6208876bc638022 SHA-1: 24d682d59671727ae1ef2f4bcf8bb61b7ccfaed6 SHA-256: 3dd6e45d3aa1c22854814fcb1747c1ea27c314dc4136fc99ee9525fd881c3add
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 5

  • 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 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://infrive.ru/uplcv?utm_term=sharepoint+online+portal PDF link annotation
    • https://aynispirit.nl/userfiles/file/39755469043.pdfIn PDF document text
    • https://cafesca.mx/ckfinder/userfiles/files/56343800379.pdfIn PDF document text
    • http://xn----gtbercbfedtm3b.xn--p1ai/admin/ckfinder/userfiles/files/lidagogupew.pdfIn PDF document text
    • http://lex-ter.ru/admin/ckfinder/userfiles/files/51568675683.pdfIn PDF document text
    • http://mardeestilos.es/fotos/file/6401340018.pdfIn PDF document text
    • http://archinfo.ru/uploads/file/danulamagemijo.pdfIn PDF document text
    • https://goldgreiner.de/userfiles/file/xebab.pdfIn PDF document text
    • http://lamexmarket.com/uploads/files/fixamerores.pdfIn PDF document text
    • https://cafesca.info/ckfinder/userfiles/files/zuxedadobote.pdfIn PDF document text
    • http://bularz-auto.pl/images/userfiles/file/virixubawesomivakolorafaj.pdfIn PDF document text
    • http://qiuyutv.com/userfiles/files/20210911052332.pdfIn PDF document text
    • http://romanakladatelstvi.cz/userfiles/file/jimubatanopurotevam.pdfIn PDF document text
    • https://clinicaabrahaoosta.com.br/ckfinder/userfiles/files/76191659885.pdfIn PDF document text
    • https://euroialinsol.ro/userfiles/file/57374305746.pdfIn PDF document text
    • http://open.ua/uploads/ckeditor/files/80097712711.pdfIn PDF document text
    • http://giovanninociti.com/userfiles/files/74897483142.pdfIn PDF document text
    • http://rm-centr.ru/uploads/file/74215784650.pdfIn PDF document text
    • https://prcomponents.com/ckfinder/userfiles/files/2478431010.pdfIn PDF document text
    • http://cuanhuadanang.vn/uploads/image/files/66475286968.pdfIn PDF document text
    • https://jvlegacyhomerepairsmd.com/nbloom/fckuploads/file/69083062960.pdfIn PDF document text
    • http://demenagements-remond.fr/userfiles/file/20210913235051.pdfIn PDF document text
    • http://e-cluny.cz/UserFiles/file/54787145110.pdfIn PDF document text
    • http://forum-auto.ru/data/files/fexojijuko.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_off0000d77f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD77F 17996 bytes
SHA-256: 51ea2787a894c0c31c0e700455f07e14fbdc95dba429dcf74358b6f09a7f8696
font_01_sfnt_off000105d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105D6 10256 bytes
SHA-256: a043469d3f4bfc7f1c972339dcdd605afeece7a340c7f03eea60b53483cf871c
font_02_sfnt_off00011ccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CCC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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