Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af6f62e092b0714…

MALICIOUS

PDF

75.0 KB Created: 2021-10-06 06:54:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 90325379ff521cb74a6f53464bba27f8 SHA-1: d322c22143fbc483efab54c73dac19355bf09cc4 SHA-256: 4af6f62e092b0714ddffd09bfc6080a06121afe39f1c1eeabf30d67027f2f731
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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 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://groupekineconcept.com/userfiles/file/dafoxi.pdf In PDF document text
    • https://uleshuzatabc.hu/files/file/69249555400.pdfIn PDF document text
    • http://grimastone.ru/files/73970270684.pdfIn PDF document text
    • https://crcnueva.naturasoftware.com/uploads/images/files/nufuporajuxo.pdfIn PDF document text
    • http://peknanevesta.sk/media/file/74447566941.pdfIn PDF document text
    • https://leganordavigliana.com/uploads/file/dagasixizel.pdfIn PDF document text
    • http://ciba.lv/uploaded/file/mowabekatano.pdfIn PDF document text
    • https://raselapp.com/userfiles/file/rapifarafetutolokafewugi.pdfIn PDF document text
    • http://cortocircuito.trialpanel.com/images/Upload/files/jujuzujimixuko.pdfIn PDF document text
    • https://zifu-tech.com/app/webroot/userfiles/files/58211940040.pdfIn PDF document text
    • http://residencecarlofelice.com/userfiles/files/menitugugofemamagilet.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/6c4v04t4g4otfm99u7lalg0ejo/gugerifimefi.pdfIn PDF document text
    • http://www.hussco-steel.com/husscofiles/files/majuxuzawimepup.pdfIn PDF document text
    • https://daqing-jewelry.com/uploads/files/202109271851004164.pdfIn PDF document text
    • http://unewstoday.com/task/userimages/file/99560904369.pdfIn PDF document text
    • http://ardennes.proximeo.com/ckfinder/userfiles/files/lenetiximemalamum.pdfIn PDF document text
    • http://word.mn/uploads/assets/24329909212.pdfIn PDF document text
    • http://garageanything.com/js/upload/files/begaresopiweviminutixowo.pdfIn PDF document text
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/161509d19f3d30---12738537522.pdfIn PDF document text
    • http://indago-rovigo.it/userfiles/files/11802190327.pdfIn PDF document text
    • https://alarouba.com/ckfinder/userfiles/files/fitupetezeripawavif.pdfIn PDF document text
    • http://inica.org/files/file///50704608077.pdfIn PDF document text
    • http://inarchengineering.it/userfiles/files/19609016483.pdfIn PDF document text
    • https://managedentalclinic.com/ckfinder/userfiles/files/24462913514.pdfIn PDF document text
    • http://ozkayalarlojistik.com/userfiles/file/nunuxezijoruniwibibagatij.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=simple+present+tense+exercises+for+grade+2PDF 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_off0000bef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEF6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d70d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD70D 11260 bytes
SHA-256: 66c0029b54a4efe3f02b045ca32f82a1e0fac7c76cb84b9bcfcfb5439c946326
font_02_sfnt_off0000f146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF146 17160 bytes
SHA-256: 5fdfec20cf3b0876c38ae6ac66449c0847c287d92f9f9ff7d9a2b8f43f82f72f