Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fce0ecad98fbe8…

MALICIOUS

PDF

78.3 KB Created: 2022-04-05 04:46:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 563a7669a6fd114178457bdbd4f8049f SHA-1: e1947dbafb1ee85c02a04625df7cf727817f1ebe SHA-256: a4fce0ecad98fbe8e0222bb570346860889152d4743c9e7b963c2aeab78870b0
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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=bose%20awrcc2%20cd%20skipping PDF link annotation
    • https://zoxofaduw.weebly.com/uploads/1/3/2/6/132683138/getokutuk.pdfIn PDF document text
    • https://cungcapthitdetuoi.com/app/webroot/files/images/pages/files/gemef.pdfIn PDF document text
    • https://gazezujebek.weebly.com/uploads/1/3/4/8/134881616/7864702.pdfIn PDF document text
    • http://espwireless.net/uploads/file/25744787337.pdfIn PDF document text
    • https://pasifikendustriyel.com/userfiles/file/88174393867.pdfIn PDF document text
    • https://dumixegilo.weebly.com/uploads/1/4/1/2/141257745/gopimeruziwuvit.pdfIn PDF document text
    • https://tosofovopige.weebly.com/uploads/1/3/3/9/133998067/09b1583c6.pdfIn PDF document text
    • https://gcr.goldcrownresort.com/magazine_files/files/wetezawazax.pdfIn PDF document text
    • https://nusemidokiz.weebly.com/uploads/1/3/5/3/135395372/9130671.pdfIn PDF document text
    • https://collinite.pl/userfiles/file/pelisenonugaduzixu.pdfIn PDF document text
    • https://pixelisikug.weebly.com/uploads/1/3/1/4/131407736/277f217.pdfIn PDF document text
    • http://braciszewska-klimek.pl/fck_files/file/zamotosixowimalabavu.pdfIn PDF document text
    • https://dusuwepi.weebly.com/uploads/1/3/4/5/134589125/nunopafiguwafimibito.pdfIn PDF document text
    • https://labelamujevodit.weebly.com/uploads/1/3/1/6/131606697/3884817.pdfIn PDF document text
    • https://tanaxigurav.weebly.com/uploads/1/3/4/2/134266775/wuzifetules-tegokalorewa-vimiwalid.pdfIn PDF document text
    • https://tumafivefaj.weebly.com/uploads/1/3/3/9/133999435/nopebirodo.pdfIn PDF document text
    • https://bandai-k.com/userfiles/file/xedagotogabu.pdfIn PDF document text
    • http://robedecreateur.com/img/files/7460749676.pdfIn PDF document text
    • https://www.varoslod.hu/kcfinder/upload/files/pawuraja.pdfIn PDF document text
    • http://mjacz.cz/soubory/files/xipokuxare.pdfIn PDF document text
    • http://support-cmu.com/filedata/file/46301018852.pdfIn PDF document text
    • https://powiedzdoktorze.pl/file/files/pazoli.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 extracted file (font_00_sfnt_off0000cdd4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cdd4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDD4 17116 bytes
SHA-256: 03493b213cbfc55457440c63c87706240b7d5464e8bc707db9e32b0e6e88c6a7
font_01_sfnt_off0000fa9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA9F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000112b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112B6 10896 bytes
SHA-256: d68432715619747f4150f2dea39b2b057b2a72f512d0ff7a235df2f83ebdda09