Malicious PDF — malware analysis report

Static analysis result for SHA-256 793f5eb37556953c…

MALICIOUS

PDF

85.7 KB Created: 2021-11-04 03:06:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: be37f869dbe4ae388862c6be65e10b8a SHA-1: 269083e6f476d34f1e34c544087f54f49e1d7d81 SHA-256: 793f5eb37556953ccdb38990544eea39a1196877227b7507c17dec82bb5f635f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/593jgmlcfpkm6kcb8jpao7q894/14368344746.pdf In PDF document text
    • http://aedelsur.com/contenido/files/nixapadikaluriteb.pdfIn PDF document text
    • http://montpellier-businessplan.com/mbp/upload/images/images/upload/ckfinder/48238908869.pdfIn PDF document text
    • https://namphuctourist.com/userfiles/file/tabatelezepefiripenok.pdfIn PDF document text
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/161779884d320f---leliwibimawenodapisorab.pdfIn PDF document text
    • https://dondepodemosir.com/userfiles/file/jekudulawutuxibitixakobin.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/161679faaa9c95---49479545975.pdfIn PDF document text
    • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/f00eaf2266d2af550eedbdd373d7b286/51194040166.pdfIn PDF document text
    • http://leebyunghun.kr/new/upload/board/files/nulonamikofiwes.pdfIn PDF document text
    • https://asthasupermarket.com/userfiles/file/fiburutejin.pdfIn PDF document text
    • https://www.cascatai.com.br/ckfinder/userfiles/files/lupobufekuxopixumodoxu.pdfIn PDF document text
    • http://helderlive.nl/ckfinder/userfiles/files/dipimiluluxezup.pdfIn PDF document text
    • http://wjcopy.com/upload/files/zirunafidit.pdfIn PDF document text
    • http://aquatherm-graz.at/files/lijawo.pdfIn PDF document text
    • http://konakelektrik.com/userfiles/file/situtenuwogape.pdfIn PDF document text
    • http://simonkuehner.de/gfx/userfiles/files/mexifekifedojolobupazo.pdfIn PDF document text
    • https://afayl.com/userfiles/file/21880887981.pdfIn PDF document text
    • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/9f496592d22bc8cd13eb99a36b9c6b00/61131305766.pdfIn PDF document text
    • http://pobierzplik.pl/uploads/files/motorinodebubosiwexavaz.pdfIn PDF document text
    • http://bolshunoff.ru/images/wysiwyg/file/11777090530.pdfIn PDF document text
    • http://sivam.pl/files/file/vudexe.pdfIn PDF document text
    • http://cpils.com/userfiles/file/kiwidaguluwofupimafes.pdfIn PDF document text
    • http://cleversystems.ru/userfiles/file/9429913897.pdfIn PDF document text
    • https://shiokuda2.com/contents/files/28039324130.pdfIn PDF document text
    • http://www.peritaonline.es/ckfinder/userfiles/files/62400385924.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/BcFPVxLj4jw/uplcv?utm_term=new+rugged+smartphones+2020PDF link annotation
    • 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_off0000e6b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B4 11104 bytes
SHA-256: b15cfc8710ea54a2d86b68fd1f436efc94e2682f5d49be04d53ee8c66aef5920
font_01_sfnt_off00010055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10055 18660 bytes
SHA-256: 09f378700bfe054ca82d3c29d90f49ff31098c939db98509e4f7b7434a5cb252
font_02_sfnt_off000130f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130F7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1