Malicious PDF — malware analysis report

Static analysis result for SHA-256 7829108a50cedf8e…

MALICIOUS

PDF

77.9 KB Created: 2021-10-08 03:18:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 471225a982845e261a6df9e3b53b549f SHA-1: c0c43be7b5953649cdf355eb18d917916efa0380 SHA-256: 7829108a50cedf8e80254dea21eb66e6f148a1f02dbd66e6656a7a67ae5e5fee
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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
  • 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.
  • 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://pixomot.ru/uplcv?utm_term=condensation+in+nature PDF link annotation
    • http://forglass.sk/userfiles/file/dewagezaxaf.pdfIn PDF document text
    • http://sayarbobinaj.com/file/74014599422.pdfIn PDF document text
    • http://vekosgroup.ru/userfiles/file/19354241148.pdfIn PDF document text
    • http://web-news.eu/www/pkpar/userfiles/file/89823511078.pdfIn PDF document text
    • https://evrenmentese.com/upload/ckfinder/files/jurunisesuzi.pdfIn PDF document text
    • http://maulich.vn/attachment/files/kazowabeviri.pdfIn PDF document text
    • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/68651db7f5fc5ba0e7157e2c5c1c7bd4/43894768468.pdfIn PDF document text
    • https://www.lipca.com/ckfinder/userfiles/files/32670966100.pdfIn PDF document text
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/1i7l9mhsrs3ej9qdvi06q47os0/buwikerogolevikon.pdfIn PDF document text
    • http://cwsf2013.sfiab.com/data/userfiles/file/xaleselalapoxuguboxuka.pdfIn PDF document text
    • http://lsneotek.com/ckupload/files/pewonijowirudeboxuz.pdfIn PDF document text
    • http://festacreativita.org/userfiles/file/16762851795.pdfIn PDF document text
    • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/uhso5ap7a56o9us8prg6jh7vd5/vopevukojo.pdfIn PDF document text
    • https://www.amata.org.uk/ckfinder/userfiles/files/56451994520.pdfIn PDF document text
    • http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1615a72200f822---31341092055.pdfIn PDF document text
    • https://1tlstar.com/storage/uploads/files/lofotif.pdfIn PDF document text
    • https://mayphotocopydogia.com/upload/files/pelibum.pdfIn PDF document text
    • https://maria-galland.ru/files/file/tisodigojufofalarunabig.pdfIn PDF document text
    • http://xueyuan.zlyxgw.com/uploads/ckeditor/files/20211007100019.pdfIn PDF document text
    • https://hzautomatisering.nl/userfiles/file/xudekisuretinoruwod.pdfIn PDF document text
    • http://abnig.friendship-match.com/upload/files/50980149363.pdfIn PDF document text
    • http://furniture83.com/upload/files/33969466563.pdfIn PDF document text
    • http://polimak.pl/userfiles/file/80112136184.pdfIn PDF document text
    • http://budgettranslation.hu/sites/default/files/file/funov.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_off0000c8e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8E1 10324 bytes
SHA-256: 09786e7f86a917ab5e454e0e8dd36edccaeb60f872c44b7d091e9a5dadd5b257
font_01_sfnt_off0000e059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE059 19512 bytes
SHA-256: a5d625cf21b62a874b069c7f2cffe42eb116da836a4bde17f0088ba745c2efb3
font_02_sfnt_off00011196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11196 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1