Malicious PDF — malware analysis report

Static analysis result for SHA-256 98f03ad74d16972e…

MALICIOUS

PDF

69.3 KB Created: 2022-03-29 20:00:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: cac181378b8a0267cbacacbc75a962ed SHA-1: 08c3cdbd48057741db523b11cb1c4930934919e8 SHA-256: 98f03ad74d16972ed6ca65b0c3581a2c94e5cc409545a42a59a6e4bc1eed3dcc
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://lazav.co.za/YmrXLWy8?keyword=raizes%20brasil%20courtry PDF link annotation
    • https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/gitetimazorugi.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620462b4a8337---40777043490.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/19ae877af3d867e37a1943bffae2f3aa/webakopiludawidarupefi.pdfIn PDF document text
    • https://www.magrinienergia.it/_admin/kcfinder/upload/files/vuwoluzixi.pdfIn PDF document text
    • http://chinnanaidoo.org.za/kcfinder/upload/files/dojexejejukulid.pdfIn PDF document text
    • http://sithome.com/upfiles/file/20220323225136.pdfIn PDF document text
    • https://rhodium.vn/uploads/news_file/21447858940.pdfIn PDF document text
    • https://balolemarivapi.weebly.com/uploads/1/3/5/3/135309218/melox.pdfIn PDF document text
    • https://riwominejakubik.weebly.com/uploads/1/3/4/5/134598273/rafiwabufiki.pdfIn PDF document text
    • http://salamatekhanevadeh.ir/ckeditor/files/files/jegabanuregev.pdfIn PDF document text
    • http://www.alexgis.com/siteuploads/editorimg/file/43815842881.pdfIn PDF document text
    • http://promerilaclama.com.tr/panel/kcfinder/upload/files/30201332841.pdfIn PDF document text
    • http://tekizolasyon.com/ckfinder/userfiles/files/sifupipolapifija.pdfIn PDF document text
    • https://wesotapaxo.weebly.com/uploads/1/3/4/4/134488604/viwozototamesipe.pdfIn PDF document text
    • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620325a2c4745---56505738471.pdfIn PDF document text
    • https://tudupumodowi.weebly.com/uploads/1/3/1/4/131406798/ledetuzulaxebiki.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/8t9nntdt53o4eib1n87qlq9rf2/vibafoseneluj.pdfIn PDF document text
    • http://mytenniscoach.net/admin/ckeditor/kcfinder/upload/files/jowabeliwibikasedexo.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621ac16870ea7---kusifilawarowumugis.pdfIn PDF document text
    • https://drproperty.org/userfiles/file/rimupupidijofiforemikivod.pdfIn PDF document text
    • http://hadt.vn/upload/files/85158181450.pdfIn PDF document text
    • https://unityofmyanmar.org/images/files/79920597849.pdfIn PDF document text
    • https://fobibopokigafo.weebly.com/uploads/1/3/4/7/134702456/sivukuralaja.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 extracted file (font_00_sfnt_off0000a95a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000a95a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a95a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA95A 10580 bytes
SHA-256: 2e2438ef716be983888e8f608e74d1638885feaaabf3e3547ea08f3674e5695c
font_01_sfnt_off0000c1c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1C3 18592 bytes
SHA-256: 697a0d165e828ab14ff7c0497b3e48314ed6c19f616b81161ff514f6fcafb9eb
font_02_sfnt_off0000f125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF125 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336