Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b37f8682eac2ed…

MALICIOUS

PDF

87.2 KB Created: 2022-04-18 08:46:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 83c22d36f80f1b211b5a48503e0c23be SHA-1: 64cc5e3135a9053581978cebaab7f9be75eb86ee SHA-256: 72b37f8682eac2ed749901563d18da7503cf94cd022f21ca487cdf43ca5c532d
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://fecuq.co.za/YmrXLWy8?keyword=pan%20vs%20original%20crust%20papa%20murphy PDF link annotation
    • https://octvads.site/js/ckfinder/userfiles/files/mumemuzukejupiwip.pdfIn PDF document text
    • https://veraxoli.weebly.com/uploads/1/3/4/0/134040716/2128727.pdfIn PDF document text
    • https://duvarifa.weebly.com/uploads/1/3/5/3/135347264/6243703.pdfIn PDF document text
    • http://mhzsolutionz.com/userfiles/file/misawadamu.pdfIn PDF document text
    • http://lube-stc.com/ckfinder/userfiles/files/38802936234.pdfIn PDF document text
    • http://elisa5888.com/shopadmin/upload/files/83679492490.pdfIn PDF document text
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623d4c02ed7bc---69043591594.pdfIn PDF document text
    • https://paxuxavige.weebly.com/uploads/1/3/4/3/134373921/5528694.pdfIn PDF document text
    • http://azv-goldeneaue-uthleben.de/kcfinder/upload/files/81027385677.pdfIn PDF document text
    • https://livozowenenebu.weebly.com/uploads/1/3/0/8/130874097/zujosezizomarakun.pdfIn PDF document text
    • http://c2r-auto.com/uploadfiles/file/2022021208022473499.pdfIn PDF document text
    • http://naturalfurnish.com/userfiles/file/46113610596.pdfIn PDF document text
    • http://salamino.pl/userfiles/file/dojasoboro.pdfIn PDF document text
    • http://muralsdecoracio.com/ckeditor/kcfinder/upload/files/96913870304.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/161fa41d9ab245---43768812124.pdfIn PDF document text
    • https://nevonanopovew.weebly.com/uploads/1/3/4/3/134335048/zosurovimid.pdfIn PDF document text
    • http://vincitydata.com/uploads/ckfinder/files/73398150028.pdfIn PDF document text
    • https://makiriaszto.hu/ckfinder/userfiles/files/refum.pdfIn PDF document text
    • http://sindcomerciarioscs.org.br/adm/kcfinder/upload/files/zugewawa.pdfIn PDF document text
    • http://gibisch.org/files/files/25941113772.pdfIn PDF document text
    • http://poexali.org/static/image/_u/system/files/fawurirexokiril.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16248842527d11---86694050972.pdfIn PDF document text
    • http://daiichibus.vn/uploads/news_file/86382789387.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD0D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f524.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF524 11004 bytes
SHA-256: c321dfc7aa00e0b77f41745c1b433f2101a66e63afa88cf6da179ee5f672da9e
font_02_sfnt_off00010e9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E9B 2440 bytes
SHA-256: 5f9489db96fdfefda6296b7f3d1625c07d7946c1d71a655e11177c1cfffd0e72
font_03_sfnt_off0001192b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1192B 20068 bytes
SHA-256: 4daff0a679abd4249185b8983694625a2ffb243bc3150371e161086317d1739a