Malicious PDF — malware analysis report

Static analysis result for SHA-256 478936e8d9221876…

MALICIOUS

PDF

76.3 KB Created: 2021-09-09 06:33:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 86e4d800d4bbe680b24b60a88b94305c SHA-1: 9adb3d6c1d5deb838355c34952da48f0fa47204f SHA-256: 478936e8d92218765d6e2d3f5406aebc4e6d00b57842426f366ae9592b690bd0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 5

  • 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 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 http://ivepe-elearning.gr/assets/UserFiles/mainHome/file/84081599546.pdf In PDF document text
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161394d627c026---mivixizenifujuxixepida.pdfIn PDF document text
    • https://kaskad-74.ru/images/uploads/21550880569.pdfIn PDF document text
    • http://umrllc.com/userfiles/files/pimanaloxeguvubisukopelo.pdfIn PDF document text
    • https://stehovani-ostrava.cz/static_pages_files/file/zonulusesazosonanobew.pdfIn PDF document text
    • http://boxerdapolenta.com/cmsimple/images/file/ninirotajo.pdfIn PDF document text
    • http://restokrat.info/userfiles/file/54029652121.pdfIn PDF document text
    • http://imobilestore.de/userfiles/file/vezotugixomolagokusuxu.pdfIn PDF document text
    • http://lasermedia.cn/userfiles/file/sokosuridevabanujo.pdfIn PDF document text
    • http://sushikyototogo.com/uploads/files/xejewegutoxedaxifotipik.pdfIn PDF document text
    • http://e-store-sys.com/userfiles/file/jatewevojapoxusovutid.pdfIn PDF document text
    • http://ky-auto.com/uploadfile/files/wakiparesumavesida.pdfIn PDF document text
    • https://www.hermanosvalerorecio.com/ckfinder/userfiles/files/86955238598.pdfIn PDF document text
    • http://mg001.cn/upload_fck/file/2021-9-9/20210909110432668553.pdfIn PDF document text
    • https://groupekineconcept.com/userfiles/file/xizivabe.pdfIn PDF document text
    • http://seoaudytor.pl/userfiles/file/96117027830.pdfIn PDF document text
    • http://medrea.ru/upload/files/12314009314.pdfIn PDF document text
    • http://freeski.hu/freeski/file/59156474801.pdfIn PDF document text
    • http://abwwilson.com/uploads/files/goromiga.pdfIn PDF document text
    • http://zxsolar.com/d/files/kuxutexobepuv.pdfIn PDF document text
    • https://crcnueva.naturasoftware.com/uploads/images/files/lizipipu.pdfIn PDF document text
    • http://xedaptap.net/userfiles/file/zamodowi.pdfIn PDF document text
    • http://xn--80aafbjcazdrhzgiddbbcsg4l.xn--p1ai/pict/file/79143125247.pdfIn PDF document text
    • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612eef3318faa---63487483695.pdfIn PDF document text
    • http://asacnfservices.com/ckfinder/userfiles/files/17022483904.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=colors+channel+onlinePDF link annotation
    • 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_off0000c764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC764 17340 bytes
SHA-256: 49a8bd6fbd82a144eda518fc549bc10ca5dc3928cac7518ed97f1476ad16a483
font_01_sfnt_off0000f444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF444 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010c5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C5B 10260 bytes
SHA-256: 9d40b7c0ae09cc647ff4c9f2f95d3b1417390663bd5c1b8b3e0c08f0b3c291b1

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