Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8c28b095c95f35…

MALICIOUS

PDF

81.6 KB Created: 2022-04-30 14:49:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: fc3bcd4f82703771a1db5e645d75c2d4 SHA-1: 2112a111b52c19488abbb5ce2624c40f6e54403f SHA-256: aa8c28b095c95f35a7f867de07bb13c84d5c59408e788b261da1a8a644cff34f
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://norin.co.za/YmrXLWy8?keyword=rca%20converter%20box%20model%20dta800b1 PDF link annotation
    • https://fesitafixob.weebly.com/uploads/1/3/4/6/134653549/kewofosijodigu.pdfIn PDF document text
    • https://korvioinfotech.com/ckfinder/userfiles/files/luvisu.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/10d0824516b32dbb029e2394050dd4ac/dowulusid.pdfIn PDF document text
    • https://gebodakejodige.weebly.com/uploads/1/3/4/3/134316683/f8834e713b0459.pdfIn PDF document text
    • https://jolezutixuzusav.weebly.com/uploads/1/3/4/6/134605000/tiferij_pomaluf_nesavegozenonuj_kuzumotafipawat.pdfIn PDF document text
    • https://radinake.weebly.com/uploads/1/3/1/8/131856095/6651558.pdfIn PDF document text
    • https://gexamefirizawem.weebly.com/uploads/1/3/4/6/134668325/xatari-mozazoworowo-mugidek.pdfIn PDF document text
    • https://toxupenowa.weebly.com/uploads/1/3/4/0/134042648/lanujopam.pdfIn PDF document text
    • https://jurulekoteg.weebly.com/uploads/1/3/4/7/134700509/7087117.pdfIn PDF document text
    • https://pupuwovojetisig.weebly.com/uploads/1/3/1/4/131438468/67f01.pdfIn PDF document text
    • http://www.alborada.es/ckfinder/userfiles/files/pezawaxitirozujasa.pdfIn PDF document text
    • https://gujejedadun.weebly.com/uploads/1/3/1/3/131398181/acc9238bf6f7d40.pdfIn PDF document text
    • https://putidano.weebly.com/uploads/1/3/4/3/134388569/95ef43359b9.pdfIn PDF document text
    • https://sakavikonur.weebly.com/uploads/1/3/4/8/134854141/diridebob.pdfIn PDF document text
    • https://wakowugiluto.weebly.com/uploads/1/3/5/4/135401031/posik.pdfIn PDF document text
    • https://jejaparax.weebly.com/uploads/1/3/5/3/135332208/konijepixuzulodipik.pdfIn PDF document text
    • http://eugensa.lt/app/webroot/uploads/userfiles/files/wazuvujagepojidalolupimif.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_off0000d7d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000efe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE7 11004 bytes
SHA-256: f9f52788ce8beff23b5f55054ec4ec558ffe5982223aa6647d1e8df792052737
font_02_sfnt_off00010995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10995 18380 bytes
SHA-256: 3379b835d60e16227604feab0f256b3fbfa3921009cec14dd375e13ee7ba8d1f

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