Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d993f5bf4dba743…

MALICIOUS

PDF

283.4 KB Created: 2021-06-28 20:19:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f4020318d9ede615e564778e6749aef4 SHA-1: c5c2eab4e00f2ca65848c07a880c782175deb726 SHA-256: 5d993f5bf4dba74308520ed10c307467e787cf2dea8822122c00506e31146bca
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF document that contains multiple links, several of which point to compromised WordPress sites. The ML classifier and ClamAV both flagged this PDF as malicious, specifically as a phishing trojan. The embedded links suggest an attempt to redirect the user to malicious content hosted on these compromised sites, likely for phishing or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9766

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
  • 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 https://archism.ru/uplcv?utm_term=automated+railway+crossing+project+pdf PDF link annotation
    • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5a95e4b86---45818617353.pdfIn PDF document text
    • http://csc0532.com/userfiles/file/20210622184207_k05bn0.pdfIn PDF document text
    • http://drthchowdary.net/userfiles/file/mavojabefu.pdfIn PDF document text
    • https://benqmusicworkshop.com/fupload/file/98827374002.pdfIn PDF document text
    • https://cakenepal.com/userfiles/file/81495281534.pdfIn PDF document text
    • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/7dc1858d99eea32253b0f657aba052cb/golopifoxira.pdfIn PDF document text
    • http://ccapostolicchurch.org/clients/1/19/19d200bce63520a637954fb60b162b1a/File/kilixitagobewig.pdfIn PDF document text
    • https://mercedesmazo.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607ea38dd8f47---49307946988.pdfIn PDF document text
    • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/43c192ba03147b99ffcd421426d5d255/94985831363.pdfIn PDF document text
    • https://tvmreza.tv/ckfinder/userfiles/files/xagaxap.pdfIn PDF document text
    • https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/1ea0ff23953035c3536f8e2155bf0921/nozite.pdfIn PDF document text
    • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/16080c506d07ae---favovanogisafuzu.pdfIn PDF document text
    • https://debcopharma.com/userfiles/file/50268629777.pdfIn PDF document text
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/eb6c31c67a7a544232319937b3268c76/lanozarijaso.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/kularatejibupe.pdfIn PDF document text
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/36a3d876ce0038400ce60322ea1641d3/xomumisugawukuvipigog.pdfIn PDF document text
    • https://fentesmakina.com/paket/upload/files/25613629894.pdfIn PDF document text
    • http://ya-ke.cn/admin/upload/33374040013.pdfIn PDF document text
    • http://strategie-online.net/catalogue_dynamique/file/26648003820.pdfIn PDF document text
    • https://xanbiente.de/userfiles/file/74920833864.pdfIn PDF document text
    • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/a8a51a8245933fdfb18778f3be3a8515/95175378386.pdfIn PDF document text
    • http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/342719d9fc23385ca6ec8d14d06cccc1/venunariludowanaginu.pdfIn PDF document text
    • http://canxetaianhduc.com/images/file/7212365625.pdfIn PDF document text
    • https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/0a9d3de842effbd312325746a1679b04/49646097456.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160945c540ab23---30641731908.pdfIn PDF document text
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/dec22c977fa935236796373a774cb9e4/geromovotiruberozozapife.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_off0003fe41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FE41 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00041658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41658 11376 bytes
SHA-256: 49dba82dddd45f4944ba9e14b7d94e052c1dc5c312733f69f676f38136525685
font_02_sfnt_off000430f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x430F5 17664 bytes
SHA-256: 1e2279b35679d8590545ce7ee1c78681112f13260b75362192e439acb1252f3a

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