Malicious PDF — malware analysis report

Static analysis result for SHA-256 8471effb860554df…

MALICIOUS

PDF

183.8 KB Created: 2022-04-10 11:36:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 7909b544bbf70c772d8baac9c3cfda6b SHA-1: 0893162fe448ae268ffd6f37e808a314db65073c SHA-256: 8471effb860554df31eecef58fdb75e9a432a7f49defaeae219a56eb585fa657
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8543

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://twojeloty.pl/admin/kcfinder/upload/files/pavedimarinofezowijisa.pdf In PDF document text
    • https://open-call.fr/uploaded/files/nikoxijevirimuxabo.pdfIn PDF document text
    • http://urbanposthotel.com/admin/ckfinder/userfiles/files/97590253203.pdfIn PDF document text
    • http://www.rodnolespropertymanagement.com/siteuploads/editorimg/file/43023125043.pdfIn PDF document text
    • https://grafconsulting.pl/Upload/file/vixopolatone.pdfIn PDF document text
    • http://chemtron-vostok.ru/media/file/1448488694.pdfIn PDF document text
    • https://fefupitemoxawa.weebly.com/uploads/1/3/4/4/134480784/segaxurunezibini.pdfIn PDF document text
    • https://cursosadistanciayonline.com/medios/files/jijavorudulemoroti.pdfIn PDF document text
    • http://tehnaplus.mk/tehnaplus/kcfinder/upload/files/gidug.pdfIn PDF document text
    • http://gusanhightec.com/userData/board/file/gefubarupene.pdfIn PDF document text
    • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/4ea5cef90f59be3c1d6d07ea683b0bb6/70071545818.pdfIn PDF document text
    • http://kuhomania.ru/ckfinder/userfiles/files/lofeporowezivota.pdfIn PDF document text
    • https://hiroyoung.com/data/files/65765209488.pdfIn PDF document text
    • http://bahiratpatil.com/kcfinder/upload/files/bikogap.pdfIn PDF document text
    • https://kalafiber.com/webroot/js/ckfinder/userfiles/files/wavipevimelotised.pdfIn PDF document text
    • http://sdtech-kh.com/kcfinder/upload/files/74736867928.pdfIn PDF document text
    • http://flamefitnessstudio.com/cewit/images/file/55663940335.pdfIn PDF document text
    • http://www.vycvikprvnipomoci.cz/upload/files/tutizovelijalefitesugu.pdfIn PDF document text
    • http://wignaccent.com/FCKeditor_2.6.3/userimages/file/20220219225233.pdfIn PDF document text
    • https://konokuvov.weebly.com/uploads/1/3/3/9/133997141/mojadexekevosi-zunugez.pdfIn PDF document text
    • https://zimavilagapiwe.weebly.com/uploads/1/3/2/7/132712623/ririvatuno_vujimiz_pugojiniru_davajawe.pdfIn PDF document text
    • https://storycycle.com/ckfinder/userfiles/files/50346060017.pdfIn PDF document text
    • https://zenit-npk.ru/files/file/85865327098.pdfIn PDF document text
    • https://korovin.org/site/img_ufiles/91017112423.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1622af603be37a---voxumazubuzekudo.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=teletron+bg+8000PDF link annotation
    • http://vivaibonomo.it/userfiles/files/2174067890.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 extracted file (font_00_sfnt_off00026f91.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00026f91.bin)

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00026f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26F91 10292 bytes
SHA-256: b75d0f6694fa07b53f79c6a660e85823cb8f3448bc7c744116a86575b8a3174f
font_01_sfnt_off000286db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x286DB 18308 bytes
SHA-256: cb0c6c7826dd549be15c22dffbdbdc005c28c4b3b836ba0b549e3677ea5dc42d
font_02_sfnt_off0002b71c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B71C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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