Malicious PDF — malware analysis report

Static analysis result for SHA-256 94180f47b9de5e81…

MALICIOUS

PDF

101.6 KB Created: 2021-09-13 05:33:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: e234b77264ab23d22f9a0a64d6da00e1 SHA-1: 46c10c322217a25fbd6fd256cb943cb2b660dcf9 SHA-256: 94180f47b9de5e81821bcff83745353ec828242a97e533599345e9c93cb2581e
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, a common technique for exploiting PDF vulnerabilities or redirecting users. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a large number of external links pointing to potentially malicious domains, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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://crmloccitanecr.com/campannas/file/fizafipon.pdf In PDF document text
    • http://bakineshr.az/ckfinder/userfiles/files/29016164560.pdfIn PDF document text
    • https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/48526956345.pdfIn PDF document text
    • http://zoldjogsi.hu/uploads/files/67799890425.pdfIn PDF document text
    • http://pampa.be/uploads/userfiles/files/44050921388.pdfIn PDF document text
    • http://veterky.ru/ckfinder/userfiles/files/32464134576.pdfIn PDF document text
    • https://castilloexterior.org/ckfinder/userfiles/files/29312951027.pdfIn PDF document text
    • http://apmnir.ro/fckfiles/file/rirexegowuxigixu.pdfIn PDF document text
    • http://www.examnotice.in/uploads/files/boboxotisuwelejigi.pdfIn PDF document text
    • http://urs-certification.com/gais/image/file/32525615770.pdfIn PDF document text
    • http://maschimaurizio.it/userfiles/files/41039171552.pdfIn PDF document text
    • http://oodow.cn/upload/file/210908013540076777nb2t6fslvyxw.pdfIn PDF document text
    • http://cmorshomecareassociates.org/uploaded_files/userfiles/files/41359648279.pdfIn PDF document text
    • http://aquitaine.annuaire-regional.com/ckfinder/userfiles/files/85733153883.pdfIn PDF document text
    • http://geologicatoscana.eu/userfiles/files/sofabut.pdfIn PDF document text
    • http://yousefmaktabi.com/ckfinder/userfiles/files/74500688957.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/4d62dabef4e376bfe21a3c4c34731371/vukigopovujerubiwim.pdfIn PDF document text
    • http://bangkokmagnetwire.com/ecodev_test/image_system/files/tiseregedubujiguxokuf.pdfIn PDF document text
    • https://matratva.in/userfiles/file/pilufivujonusidinebe.pdfIn PDF document text
    • https://angelsolutions.ro/ckeditor/ckfinder/userfiles/files/81521654002.pdfIn PDF document text
    • https://newchat.xyz/js/ckfinder/userfiles/files/pibawuzevuzuzaxalakoluki.pdfIn PDF document text
    • http://dentalweek.eu/userfiles/files/97737023064.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=one+ui+3.1+galaxy+note+20+ultraPDF 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_off0001157c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1157C 25824 bytes
SHA-256: 0e2129cce1721af559825238de4f0e08a8b2307bdd52f92ed25bc28ac73e0dfc
font_01_sfnt_off000156df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x156DF 10988 bytes
SHA-256: 79f8ecce3aa8f65895b37e3ea12002541b8ba2f8f896436d63973b5f3fa79ba0
font_02_sfnt_off000170aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x170AA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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