Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dca38db4bd4df6…

MALICIOUS

PDF

81.4 KB Created: 2021-10-21 08:30:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 5947ce70f10efa6646e1a07483ebdd4d SHA-1: 3a4f4866604a191e0b390e35b6ee0f6d1074a105 SHA-256: c5dca38db4bd4df6c246d83586279d62ea1f991cabff7890604ce46006ebd8fb
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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 http://defhjdrjioo.friend-match.com/upload/files/99404107489.pdf In PDF document text
    • http://ver9ctrl.sonikgps.com/ckfinder/userfiles/files/rireleluvusozozavazubivus.pdfIn PDF document text
    • http://webinaris.blog/ckfinder/userfiles/publics/files/sewovovazudasetalozexe.pdfIn PDF document text
    • https://listapp.in/ci/userfiles/files/5346372944.pdfIn PDF document text
    • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145694b1d643---52837005972.pdfIn PDF document text
    • https://ikincielinmak.com/upload/ckfinder/files/73768503879.pdfIn PDF document text
    • http://attep.com/home/sandbox/domains/heekee.com.hk/public_html/ckfinder/userfiles/files/nunubovolavukorinox.pdfIn PDF document text
    • http://tpokebar.com/uploads/files/vusoxe.pdfIn PDF document text
    • https://cfbadalona.net/ckdata/files/86395559979.pdfIn PDF document text
    • https://pecsikult.hu/files/file/72743094355.pdfIn PDF document text
    • https://cochleartudaskozpont.hu/files/33239834475.pdfIn PDF document text
    • http://2016.letnifestiwal.pl/ckfinder/userfiles/files/30018580052.pdfIn PDF document text
    • http://www.hro.ait.ac.th/js/ckfinder/userfiles/files/86257502016.pdfIn PDF document text
    • http://www.oe.com.tw/ezadmin/ckfinder/userfiles/files/pabutev.pdfIn PDF document text
    • http://loca-granderoue-montaletang.com/ckfinder/userfiles/files/welezulopaxegumevadufoma.pdfIn PDF document text
    • https://ginecologmuresan.ro/ckfinder/userfiles/files/zusukepi.pdfIn PDF document text
    • http://www.startservis.sk/novy/ckfinder/userfiles/files/35597261761.pdfIn PDF document text
    • http://p-energo.ru/content/file/47646665905.pdfIn PDF document text
    • http://motolargo.pl/userfiles/file/janizogivavun.pdfIn PDF document text
    • https://mattress-leader.com/media/jiwim.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/1612fccdd0f825---31693352165.pdfIn PDF document text
    • http://373113.linker.tw/files/roveluti.pdfIn PDF document text
    • https://msiutilities.net/documents/detigosenirilegafozo.pdfIn PDF document text
    • http://bm-shower.com/userfiles/files/gaxemiwoti.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/HKUGBsJGI0E/uplcv?utm_term=sammy+keyes+and+the+psycho+kitty+queenPDF 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_off0000d95d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD95D 17228 bytes
SHA-256: 62b41f422f86d229fa61a7be4458b26b0558189e45904e50533b97f08846986e
font_01_sfnt_off000105af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105AF 11160 bytes
SHA-256: 6d8cc2992b76de383c9fca292fb02ee0d29fff4ec384fe30a66372d6ce26ff0e
font_02_sfnt_off00011f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F62 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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