Malicious PDF — malware analysis report

Static analysis result for SHA-256 478dc4622f3a823b…

MALICIOUS

PDF

79.5 KB Created: 2022-04-06 18:45:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 503e82fad0c3aad9e6611f3e3e8f1c28 SHA-1: 244f151b8e9dfd8d162d85f4d2418675114de9fe SHA-256: 478dc4622f3a823bac0dd91640b05da37e3c79cc3c9fc5eed30c71a3b1cc16ed
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=burger%20king%20breakfast%20uk%20prices PDF link annotation
    • https://wipamixupes.weebly.com/uploads/1/3/4/4/134460990/fuwadugemezafo-vunopavig-jatusan.pdfIn PDF document text
    • https://kinurilidere.weebly.com/uploads/1/3/1/3/131379896/d1deb1673f3.pdfIn PDF document text
    • https://jovaramovopeg.weebly.com/uploads/1/4/1/3/141380338/617797.pdfIn PDF document text
    • http://pet.nfe.go.th/m_site/ckfinder/userfiles/files/mifuvakofixaxif.pdfIn PDF document text
    • https://anne-berger.de/sites/anne-berger.de/files/fkcfile/38070048039.pdfIn PDF document text
    • https://zugavalomiseba.weebly.com/uploads/1/3/6/0/136082075/lopagefigufu.pdfIn PDF document text
    • https://tupuzenetuz.weebly.com/uploads/1/3/4/5/134519332/8768181.pdfIn PDF document text
    • https://mufabevazom.weebly.com/uploads/1/3/1/3/131382955/0a1d6ad6610.pdfIn PDF document text
    • http://bluelakehomestay.com/uploads/image/files/fomilibuwese.pdfIn PDF document text
    • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621afa7dbcf77---pobolub.pdfIn PDF document text
    • https://bidatezo.weebly.com/uploads/1/3/4/6/134604373/monewewavav.pdfIn PDF document text
    • http://fujieshubao.com/zk/UploadFile/file/2022030907451073499.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1620f9dc8b022f---talebubujoguwupilowom.pdfIn PDF document text
    • https://gapotijaj.weebly.com/uploads/1/3/1/3/131383657/fajogazisevimawen.pdfIn PDF document text
    • https://nasipowo.weebly.com/uploads/1/3/1/3/131383467/xokixirafawozobab.pdfIn PDF document text
    • http://gruppocinofilomarsalese.com/userfiles/files/17468892028.pdfIn PDF document text
    • https://virenogapugutu.weebly.com/uploads/1/3/4/6/134635416/1767175c7826.pdfIn PDF document text
    • http://bluebirdcanada.com/FileData/ckfinder/files/20220401_D08A60E17405640D.pdfIn PDF document text
    • https://disamaro.weebly.com/uploads/1/3/4/6/134697064/ninejiximiwuzen-jopenevu.pdfIn PDF document text
    • https://wipemaxo.weebly.com/uploads/1/3/5/3/135345075/rujadogu.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_off0000cfbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFBB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e7cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7CD 17784 bytes
SHA-256: e5dd1d4ca01cbb350a81fbe74ca0ff57118176f6eccb17158fe46842cfd4af91
font_02_sfnt_off000116a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116A2 10872 bytes
SHA-256: adb439d8c051e9d103bd6c22713cec1f02041a38531a9738058416eb03105ab4

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