Malicious PDF — malware analysis report

Static analysis result for SHA-256 f870d4f76ecb3650…

MALICIOUS

PDF

79.6 KB Created: 2022-04-04 18:55:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: cf7c1b8d4dcfe5128ac08b9499eb710a SHA-1: 98168e9aa804be745197cb7b7a5d3f71bb7dc0ee SHA-256: f870d4f76ecb36503eb63a93fca56680e072e12f47d033f7ba29912653904e29
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://colod.co.za/YmrXLWy8?keyword=casio%20g%20shock%20ga%20110%20manual PDF link annotation
    • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16229eeed4edce---14159572651.pdfIn PDF document text
    • http://romengo.com/ckfinder/userfiles/files/jubuzip.pdfIn PDF document text
    • http://www.petercar0937494634.com/upload/img/files/nokokusenorabivurate.pdfIn PDF document text
    • http://www.jacenter.org/js/ckfinder/userfiles/files/maxixutad.pdfIn PDF document text
    • https://jibisovewa.weebly.com/uploads/1/3/4/6/134653871/2427856.pdfIn PDF document text
    • http://gu-bo.cn/uploads/files/fosuzoza.pdfIn PDF document text
    • https://saxexowiki.weebly.com/uploads/1/3/0/9/130969873/a1be759ab0f0f8.pdfIn PDF document text
    • https://gazodajatara.weebly.com/uploads/1/3/2/7/132712558/3167592.pdfIn PDF document text
    • http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/1622b7546d8310---57908438165.pdfIn PDF document text
    • http://gpba.ge/admin/ckeditor/ckfinder/userfiles/files/zapodakiwepuvurizebeg.pdfIn PDF document text
    • https://zahrek.com/userfiles/file/77886226567.pdfIn PDF document text
    • https://xibopenevitamog.weebly.com/uploads/1/3/4/4/134488628/3052485.pdfIn PDF document text
    • http://smelawservice.com/file_media/file_image/file/molevuz.pdfIn PDF document text
    • https://runonidalebemi.weebly.com/uploads/1/3/2/6/132682230/mufejizamibogozoviwu.pdfIn PDF document text
    • https://kimoroluloni.weebly.com/uploads/1/4/1/2/141252608/4560978.pdfIn PDF document text
    • https://prettygreekvillas.com/admin/fckeditor/editor/filemanager/connectofile/14896002613.pdfIn PDF document text
    • https://quangtriasianwindow.com/uploads/image/files/xewolegikavig.pdfIn PDF document text
    • https://luxowodadobib.weebly.com/uploads/1/3/5/3/135325591/savijogutoz.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_off0000d092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD092 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e8a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A9 10744 bytes
SHA-256: d673dbb961faeb90b1dc0e6bebbbaa2ee4c3624bd4283a8567bd854cac9a4511
font_02_sfnt_off00010132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10132 17320 bytes
SHA-256: 57b4a4a2077e04162bb6f64dced976061b3400a5b18392d3fbf0bdf354d479da

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