Malicious PDF — malware analysis report

Static analysis result for SHA-256 f875d55ef209954b…

MALICIOUS

PDF

76.7 KB Created: 2022-04-24 00:42:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 80599635108700af285dcd63312648f3 SHA-1: 9e8db6684fe7bfcaaa5a96241f6d3a8b2e99a596 SHA-256: f875d55ef209954b28294e0100a1e4a1329c1bc74871ee5e38c95eb0d18619a7
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://tevav.co.za/YmrXLWy8?keyword=lab%20reports%20examples%20biology PDF link annotation
    • https://nafoxowozuvika.weebly.com/uploads/1/3/1/3/131383754/3236733.pdfIn PDF document text
    • https://vafopizinenited.weebly.com/uploads/1/3/4/4/134480139/famumasuxad_fuxuruzodeje_makazumonipap_lisorejinodipe.pdfIn PDF document text
    • https://bokixewabukogu.weebly.com/uploads/1/3/4/3/134341992/fumizirijeremam.pdfIn PDF document text
    • http://terrigena.cz/data/pic/files/78577512053.pdfIn PDF document text
    • http://gnbc-global.com/app/webroot/js/kcfinder/upload/files/62165714907.pdfIn PDF document text
    • https://vumexafof.weebly.com/uploads/1/4/1/4/141445736/telitodabufo-sutepubo.pdfIn PDF document text
    • https://vokefuda.weebly.com/uploads/1/3/4/7/134709273/2253047.pdfIn PDF document text
    • https://biwawidojimu.weebly.com/uploads/1/3/4/6/134648839/8415913.pdfIn PDF document text
    • http://ecoaga.com/documentos/file/sawiroz.pdfIn PDF document text
    • https://gagoxesuv.weebly.com/uploads/1/3/2/6/132681450/gusufo_lujuzubagul_diwekenoziz_mufolumisomowaf.pdfIn PDF document text
    • http://studiotecnicolari.it/userfiles/files/46629744392.pdfIn PDF document text
    • https://xidaxawefitorat.weebly.com/uploads/1/3/5/9/135958331/jaterizesux_tewaze_liwibi.pdfIn PDF document text
    • https://www.3zslitomysl.cz/admin/editor/kcfinder/upload/files/wupunalotixilazilutikixi.pdfIn PDF document text
    • https://mobonojijokatu.weebly.com/uploads/1/3/4/3/134320628/4745641.pdfIn PDF document text
    • http://retrofotr.cz/files/file/8854797738.pdfIn PDF document text
    • https://vasukopedu.weebly.com/uploads/1/3/4/7/134709477/suduxaragitanu-tovovugewad.pdfIn PDF document text
    • https://vomediwanuxorat.weebly.com/uploads/1/3/4/3/134327005/zefonowezerubimodiva.pdfIn PDF document text
    • https://vinacoma3.vn/userfiles/file/95202199161.pdfIn PDF document text
    • https://miwugurelogubu.weebly.com/uploads/1/3/4/0/134000151/mapozixumu_malavo.pdfIn PDF document text
    • http://thainightjob.com/ckfinder/userfiles/files/75915683306.pdfIn PDF document text
    • http://skkl.cn/filespath/files/20220406194723.pdfIn PDF document text
    • https://misadedami.weebly.com/uploads/1/3/3/9/133997414/rajakisapogawaz-wuwakozufam-zukedisuxonog.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_off0000c596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC596 17464 bytes
SHA-256: 7e92ed3f4d578355e8e6aa5fa8dd1893aaa8b9f7d70ebafa728b12b9834a76fa
font_01_sfnt_off0000f321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF321 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010b38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B38 10804 bytes
SHA-256: 44fbfcdd53e07d16b7e51d691659207a626c8eb1f717a591e8faa3a140e1eef8

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