Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc3c9adb0f148c1…

MALICIOUS

PDF

74.6 KB Created: 2022-03-30 14:35:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: 83828ad61ee348685813a79caf532a88 SHA-1: c678267f9be8eb3c4cd82d2b9fba10317aefa713 SHA-256: 1dc3c9adb0f148c16eba759ee9478b33560583b20894ab8fa5e2811857fa471d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://cafij.co.za/YmrXLWy8?keyword=online%20english%20grammar%20checker%20tool%20free PDF link annotation
    • https://jevixivuxed.weebly.com/uploads/1/3/4/6/134622771/5e656fca33.pdfIn PDF document text
    • https://tawatoxox.weebly.com/uploads/1/3/4/0/134018263/dafubosuvugakotab.pdfIn PDF document text
    • https://mosozedap.weebly.com/uploads/1/3/1/8/131856454/6e783ab2624.pdfIn PDF document text
    • https://fuvogazukipow.weebly.com/uploads/1/3/4/6/134603691/gelejinunizobu.pdfIn PDF document text
    • https://wapixetisabin.weebly.com/uploads/1/3/4/6/134685373/wajor_tebusofekil.pdfIn PDF document text
    • https://lisogawe.weebly.com/uploads/1/3/5/3/135312855/7035105.pdfIn PDF document text
    • https://zunovuxosuseso.weebly.com/uploads/1/3/4/4/134497136/kotabosaf-xuxexafib-bafodivo.pdfIn PDF document text
    • https://wixarisituxu.weebly.com/uploads/1/3/4/6/134612607/zeroparexizaj-wufopurotavoxir-lefafenumuter-luzigezufakoja.pdfIn PDF document text
    • http://noticiasdoms.com/userfiles/file///tusababitu.pdfIn PDF document text
    • https://mebiwabubeneven.weebly.com/uploads/1/3/1/8/131871414/lavowi-kejubiteboj-muzaz-kikanoj.pdfIn PDF document text
    • https://whatstrendingnj.com/userfiles/files/renerezuwenufekuneve.pdfIn PDF document text
    • https://gibelugexafop.weebly.com/uploads/1/3/4/6/134687098/jemijodafodimofa.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16209a22220547---92309740966.pdfIn PDF document text
    • https://devogenigibef.weebly.com/uploads/1/3/4/5/134501446/gamegudi_wobufetuterepov_robajotujamadum.pdfIn PDF document text
    • https://jixinedoxe.weebly.com/uploads/1/3/1/3/131383771/xetutopa.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1623a52240e2b7---furevuf.pdfIn PDF document text
    • http://soc-in.com/data/media/files/57997250516.pdfIn PDF document text
    • https://vopuxobud.weebly.com/uploads/1/3/5/9/135974080/jonar.pdfIn PDF document text
    • https://gademivovemoxu.weebly.com/uploads/1/3/1/3/131383546/bubiralomaxepami.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_off0000bf37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF37 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000d5d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D6 16788 bytes
SHA-256: 83b4e798d8b21c6c5b1477640b15ecd6df4398c355b97833682cd81bbc439c91
font_02_sfnt_off00010146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10146 10900 bytes
SHA-256: 40813ac3069a96279681459c2e72f2d3a86e075f115afd0dedac27c9c0834bf8