Malicious PDF — malware analysis report

Static analysis result for SHA-256 4789049dccfc299a…

MALICIOUS

PDF

87.8 KB Created: 2021-10-06 10:04:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 8a744b20c72c8a9688c9446e14d2402e SHA-1: 626d29b7f55c63faea30c21f5e8a5ecc97dfa544 SHA-256: 4789049dccfc299a8754823951e1234c28577d8e8dec5e6f62732866e9ca170e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=miller+and+levine+biology+textbook+pdf+download.
  • 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://washlounge.in/ckfinder/userfiles/files/revatekopolefo.pdf In PDF document text
    • https://cissud.eu/uploads/ck_editor/files/migaj.pdfIn PDF document text
    • https://people11people.com/uploads/File/gitigizututud.pdfIn PDF document text
    • http://akcihlar.cz/userfiles/file/jenutibomanuf.pdfIn PDF document text
    • http://szwygs.com/upload/dajobobijufixumopitin.pdfIn PDF document text
    • http://tinhotsaigon.com/uploads/files/15505225587.pdfIn PDF document text
    • http://mail.teleserviciomalaga.com/ckfinder/userfiles/files/buwixexetupidavil.pdfIn PDF document text
    • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/16158b8867006a---77597246992.pdfIn PDF document text
    • https://thefertilizerequipment.com/d/files/kimatox.pdfIn PDF document text
    • http://oldmotorsclub.com/files/file/maxusalarabuvinukavexexuz.pdfIn PDF document text
    • https://combrooncom.com/contents/files/negitorixuliv.pdfIn PDF document text
    • https://mk-promotions.com/ckfinder/userfiles/files/76929924045.pdfIn PDF document text
    • https://rotitelor.com/contents/files/xerivomediniduj.pdfIn PDF document text
    • https://thuaphatlaihanoi.net/uploads/files/35484783410.pdfIn PDF document text
    • https://www.wemservice.com/ckfinder/userfiles/files/jibanimujejefubidiri.pdfIn PDF document text
    • http://canphantich.net/Images_upload/files/2473271107.pdfIn PDF document text
    • https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e2394e68ec---40807802239.pdfIn PDF document text
    • https://rubfila.in/files/file/86421624466.pdfIn PDF document text
    • http://xedaptap.net/userfiles/file/fenovebufosukubufidalatup.pdfIn PDF document text
    • http://indexone.ru/upload/file/41298601293.pdfIn PDF document text
    • http://novosib-sport.ru/ckfinder/userfiles/files/23460702758.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=miller+and+levine+biology+textbook+pdf+downloadPDF 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_off0000ea4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA4E 11096 bytes
SHA-256: 77836a9da4da1bafa9d1338ee9a7872fdb1f1e59a1f159faf4e0b39d4ab21c65
font_01_sfnt_off000103e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103E4 20364 bytes
SHA-256: 5fbbcd822291989e7716fc0a5855fb88869c5b4a3fec9c9d48f2a96662ce5a05
font_02_sfnt_off0001395c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1395C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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