Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d87a01ca881f11…

MALICIOUS

PDF

78.3 KB Created: 2022-04-01 09:50:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: 022c483614e5c7455c9b423ea6fe619c SHA-1: 2809fec2ebccd659e7233c326c97e27cf7cbac6e SHA-256: b5d87a01ca881f11446de6c4f1d99278b081718cb14101e5af4a542c992bcb5e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://kaginugopaz.weebly.com/uploads/1/3/4/3/134310825/2869e1d20a2.pdf In PDF document text
    • https://pavovebowejimop.weebly.com/uploads/1/3/1/6/131607108/c23a2cba00cf34.pdfIn PDF document text
    • https://www-prod.ecpa.fr/uploaded/file/41537347273.pdfIn PDF document text
    • https://faruraponowol.weebly.com/uploads/1/3/5/3/135311790/4397730.pdfIn PDF document text
    • https://lesitoziperitij.weebly.com/uploads/1/3/4/3/134381346/fetabujomeliwovizeb.pdfIn PDF document text
    • https://ludabasekid.weebly.com/uploads/1/3/2/7/132740342/15e6b25af56.pdfIn PDF document text
    • https://dewubolisevibe.weebly.com/uploads/1/3/4/3/134318954/6f389f764.pdfIn PDF document text
    • https://sipexagugiresu.weebly.com/uploads/1/3/4/6/134607427/vegixesamikiv.pdfIn PDF document text
    • http://www.jatekkalmesevel.hu/admin/ckeditor/kcfinder/upload/files/33269247254.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623d23f0f3cc6---60582661705.pdfIn PDF document text
    • http://pilot-market.ru/new/files/file/nezidozokuf.pdfIn PDF document text
    • https://gusinunizu.weebly.com/uploads/1/3/4/3/134380178/d65b33fc7fa2ed.pdfIn PDF document text
    • https://misefumod.weebly.com/uploads/1/3/2/6/132680918/wexaxeg.pdfIn PDF document text
    • https://fenorepaxok.weebly.com/uploads/1/3/1/8/131856491/pitan.pdfIn PDF document text
    • http://arucax.am/user_images/file/1204065525.pdfIn PDF document text
    • https://wuraruxirike.weebly.com/uploads/1/3/1/4/131453605/3184750.pdfIn PDF document text
    • http://duhocvangsang.com/ckeditor/kcfinder/upload/files/5457733140.pdfIn PDF document text
    • https://lufuneliza.weebly.com/uploads/1/3/2/6/132682735/bivogedoninowuneku.pdfIn PDF document text
    • https://zisefedid.weebly.com/uploads/1/3/4/7/134767142/c1183b0f9dce.pdfIn PDF document text
    • https://satiragekawojiw.weebly.com/uploads/1/3/2/7/132740750/fanepi_junuzarel_pewesexamepo.pdfIn PDF document text
    • https://korumarivaz.weebly.com/uploads/1/3/4/5/134506991/jusixosa.pdfIn PDF document text
    • https://lovig.co.za/YmrXLWy8?keyword=gre%20online%20sample%20test%20freePDF 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 extracted file (font_00_sfnt_off0000b856.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b856.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB856 16320 bytes
SHA-256: 281a8e0f5d6ff93c8b68c010f229fb6ad7bb76303726e8bceb98a17be6b52fdc
font_01_sfnt_off0000ce5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE5D 16968 bytes
SHA-256: 2dc4fa63d68c42082761702945249be4fce00fe810186c8628e3684fd60265da
font_02_sfnt_off0000f9ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9FF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00011216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11216 10556 bytes
SHA-256: d56c53cc1ff99df7188124015760880a1b0d73f94b3eb7a9f0b9e2d8d3647f37