Malicious PDF — malware analysis report

Static analysis result for SHA-256 20513064831314f8…

MALICIOUS

PDF

176.8 KB Created: 2022-01-20 19:07:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-20
MD5: d254f85fc6dfffc3de28ca749a936d96 SHA-1: 6acb9456d57067c9ea935f82d0facd781be9e5cd SHA-256: 20513064831314f87802f9e8cc056ecbde533ca8d2d3cf25e6bf8612e4c02fa1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7746

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 http://mamaskitchenorder.com/uploads/files/27632113611.pdf In PDF document text
    • http://upnbkk.com/file_media/file_image/file/fumib.pdfIn PDF document text
    • http://budoprojekt.eu/obrazy/file/73601437885.pdfIn PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/f1thugrqit7dauparfheu854dq/25743820257.pdfIn PDF document text
    • https://fleschimmo.lu/userfiles/files/44161837326.pdfIn PDF document text
    • https://nocenzura.space/web/img/podborky/files/zuvek.pdfIn PDF document text
    • http://rrarental.org/upload/file/zazejijapilekuti.pdfIn PDF document text
    • https://vzglavniki.net/data/file/vimuzokopi.pdfIn PDF document text
    • http://originalbau.hu/imagesfiles/lunutu.pdfIn PDF document text
    • http://www.juniorcollege.cl/ckfinder/userfiles/files/80785352458.pdfIn PDF document text
    • http://france-ex.com/images/blog/file/34680120360.pdfIn PDF document text
    • https://ksi-system.pl/editorfiles/file/pivogumetegesolawem.pdfIn PDF document text
    • https://taechoclub.com/FileData/ckfinder/files/20211002_F09826A90FD09672.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161bc36a506e69---funabonot.pdfIn PDF document text
    • http://clinicaveterinariabilancino.it/userfiles/files/sabevosabidoxigimoziz.pdfIn PDF document text
    • https://uclerbaklava.com/resources/file/wodurugeremoxojan.pdfIn PDF document text
    • http://vietcem.vn/public/default/ckeditor/files/nopimopubomufafofukosulof.pdfIn PDF document text
    • http://ubest.ru/images/file/raxebovexalemivuvobisiv.pdfIn PDF document text
    • https://demoepaper.104portal.com/upload/serback/files/20211129134337.pdfIn PDF document text
    • http://babijie.com/upload_fck/file/2021-10-10/20211010071546326219.pdfIn PDF document text
    • http://studioingtassinari.eu/userfiles/files/kixobuxigapogibexararegib.pdfIn PDF document text
    • https://abouelhoulgroup.com/userfiles/files/jetozoreliwot.pdfIn PDF document text
    • https://oncallanatomist.com/ckfinder/userfiles/files/newimunixamuvirub.pdfIn PDF document text
    • https://hchoanglong.vn/userfiles/file/rixus.pdfIn PDF document text
    • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/1da228gve9t46uie7mnia6fnbf/webunenonedosuwiko.pdfIn PDF document text
    • https://sudahhabis.com/contents/files/xadujalirotadotoniroz.pdfIn PDF document text
    • http://ombs.ru/uploads/files/34408195229.pdfIn PDF document text
    • http://villa-carlshorst.de/sites/default/files/file/bineporosijovamakad.pdfIn PDF document text
    • https://servicenter.ro/ckfinder/userfiles/files/81652775779.pdfIn PDF document text
    • http://bright-inter.com/file_media/file_image/file/bomab.pdfIn PDF document text
    • http://yildizteknikelektrik.net/resimler/files/66057350930.pdfIn PDF document text
    • https://suativisamsungtaihanoi.net/upload/files/87193896899.pdfIn PDF document text
    • http://iglozawiercie.pl/zdjecia/file/lefevununugoni.pdfIn PDF document text
    • http://studioriboldi.eu/userfiles/files/91232905208.pdfIn PDF document text
    • https://chothuexeninhbinh.net/data/dulieu/files/fisexobuw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/RC0zOYPQW8A/uplcv?utm_term=how+to+perform+batch+processing+in+jdbcPDF 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 extracted file (font_00_sfnt_off000242b4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000242b4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000242b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x242B4 11368 bytes
SHA-256: 2ac06b2d4ef2ecac7a93c4214e87c4a4e89e9a92b02211232eca810072242601
font_01_sfnt_off00025cdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25CDD 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0002737c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2737C 29136 bytes
SHA-256: a1635c2ee75da7f97674173246734eeeef8ebeb6baf8da5575c884dd0aee1151