Malicious PDF — malware analysis report

Static analysis result for SHA-256 4257eb215c414259…

MALICIOUS

PDF

98.6 KB Created: 2022-04-01 12:43:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: 269af2d76fefd5f5fd3279fa40ff7667 SHA-1: 65cd7a522835355f120ebd9a6e9dafae7f8c625c SHA-256: 4257eb215c41425913601948852d1a616c96629a1ecda3034b9e18bc3dc62327
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9918

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 https://wirut.co.za/YmrXLWy8?keyword=best%20analytic%20number%20theory%20textbook PDF link annotation
    • https://promptcorporate.com/ckeditor/ckfinder/userfiles/files/nejizupibijaminavokore.pdfIn PDF document text
    • http://atlasbasincli.com/panel/kcfinder/upload/files/82588909109.pdfIn PDF document text
    • https://pujabhandar.com/kcfinder/upload/files/dixakobodolutodugajev.pdfIn PDF document text
    • https://migger.dk/userimages/file/39560325327.pdfIn PDF document text
    • http://www.globalnautique.nl/upload/files/xikudobuxunoxelapigumo.pdfIn PDF document text
    • http://teamtrinity.net/trinitya/file/ruvesanokasapaba.pdfIn PDF document text
    • https://wofalexo.weebly.com/uploads/1/3/4/6/134697980/322675.pdfIn PDF document text
    • http://wsospice.org/uploads/userfiles/file/file/jitevolijobokoferebexosel.pdfIn PDF document text
    • https://avigailpekelman.com/sites/default/files/file/54024083713.pdfIn PDF document text
    • http://thibidi.vinadesign.info/uploads/images/files/54002405718.pdfIn PDF document text
    • https://vemenujobife.weebly.com/uploads/1/3/5/3/135399872/legol-valare.pdfIn PDF document text
    • http://zdravi-kromeriz.cz/files/file/xapigasitugu.pdfIn PDF document text
    • http://privatmajo.sk/upload/files/paranidusarex.pdfIn PDF document text
    • http://sportschoolindex.nl/images/uploads/tuwinemunosixew.pdfIn PDF document text
    • http://bastola.org/userfiles/file/vexadobiwudejuvegu.pdfIn PDF document text
    • http://jerry-cheese.com/kcfinder/upload/files/89504852846.pdfIn PDF document text
    • http://arquivolta.net/files/95707029551.pdfIn PDF document text
    • https://www.stc-tn.com/webroot/upload/files/89002258592.pdfIn PDF document text
    • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/162357db652292---83085654158.pdfIn PDF document text
    • http://pronobile.de/catalog/file/75169705735.pdfIn PDF document text
    • http://bdsductri.com/upload/files/dovokurazeje.pdfIn PDF document text
    • https://ciiinnovationsummit.com/ci/userfiles/files/2892426237.pdfIn PDF document text
    • https://fikuzafunowu.weebly.com/uploads/1/3/1/8/131857523/33145d1b8db8.pdfIn PDF document text
    • http://robertfeinberglaw.com/images/edit_images/file/zabovuruzejen.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC90 16500 bytes
SHA-256: b5a456351ba71c7f18f8d485bd4235bff27d9da9fe86232c3a001ee42ce8ec98
font_01_sfnt_off0001138e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1138E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012ba0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BA0 20176 bytes
SHA-256: f23c93082857936670cbbaaea91514bf90d6519b21379fd5ce64962e182984e8
font_03_sfnt_off00016092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16092 11096 bytes
SHA-256: 6b6e5c48fd2b3ef34bbdefc459f86dd72fbe17b38179f75ec351cd8adabf23ed

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