Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c839585e87e8d58…

MALICIOUS

PDF

222.8 KB Created: 2022-03-13 19:10:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 95965827a7757f8d64bac9fac382256b SHA-1: 7886d2ea36dcf78b471db219b25f6277f239e5de SHA-256: 2c839585e87e8d58af6bb944c6adfaf9f2e618e6b5a5d451b222e121614ac1c3
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7583

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://lazav.co.za/XSRYdR1H?utm_term=3d+printer+supported+file+format PDF link annotation
    • http://julianowka.pl/ckfinder/userfiles/files/75505444345.pdfIn PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/6l20dbo6gk1je467m1ciemkhc0/20064380035.pdfIn PDF document text
    • https://webkapper.nl/ckfinder/userfiles/files/xolovimewodugidozexogub.pdfIn PDF document text
    • http://tvkinter.com/file_media/file_image/file/zunazoleliteganesetif.pdfIn PDF document text
    • https://shinko-tw.com/UserFiles/file/fisexobaretivewa.pdfIn PDF document text
    • https://www.milestonesmn.org/ckfinder/userfiles/files/fotakabuzokuloga.pdfIn PDF document text
    • http://www.aippc.net/kcfinder/upload/files/63945108026.pdfIn PDF document text
    • https://www.steyr-mannlicher.hu/admin/kcfinder/upload/files/1183274163.pdfIn PDF document text
    • https://mayphoviet.com/media/ftp/file/1282501882.pdfIn PDF document text
    • https://drproperty.in/userfiles/file/zamanumika.pdfIn PDF document text
    • https://ask-it.softki.com/Ask-it/UserFiles/file///62484459843.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/xudotepilemovagera.pdfIn PDF document text
    • http://sieuthibds.net/images/files/50983545615.pdfIn PDF document text
    • http://szjwwj.com/userfiles/file///ligagegovitigerevukodun.pdfIn PDF document text
    • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/16227ad47b144e---18651645987.pdfIn PDF document text
    • https://firmabudowlanawalczak.pl/web/uploads/files/65475532492.pdfIn PDF document text
    • http://89928386.com/uploads/files/202203031359562401.pdfIn PDF document text
    • http://rebornfair.com/FileData/ckfinder/files/20220223_5B481AD8F43B3D8F.pdfIn PDF document text
    • http://standardamulet.com/files/files/71685197316.pdfIn PDF document text
    • https://planet-pvc.com/upload/files/92847532367.pdfIn PDF document text
    • https://grup-rul.ro/printuri-fi/files/49566931801.pdfIn PDF document text
    • https://www.peeryhotel.com/wp-content/plugins/super-forms/uploads/php/files/34340202320f49f7e2ec1946afd8cb3f/susuwurazi.pdfIn PDF document text
    • https://ymy-tea.tw/upload/files/rokevuzavaxul.pdfIn PDF document text
    • http://archiwalna.slezanie.eu/userfiles/file/bimebodarus.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_off00030571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30571 21056 bytes
SHA-256: a74dad191bc7ccc04a80628e344416aed830189e63f702b6a43014b560548834
font_01_sfnt_off00033c4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33C4A 10832 bytes
SHA-256: 864bc64ee12c37de9d63ba0fbdaca9b45c1a48f427ee1dcd851697e8befbdde8
font_02_sfnt_off0003553e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3553E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9