Malicious PDF — malware analysis report

Static analysis result for SHA-256 425b459c8f4aec2b…

MALICIOUS

PDF

130.2 KB Created: 2020-11-11 22:20:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 959be817c07a430f1f67199b8c6f5ce6 SHA-1: 6b82f1e2caf242221cb7c1c22361fcf550b96c0f SHA-256: 425b459c8f4aec2b9c8b8f1a6a6238421ba302d7bbfa0b5f56f6595c9d15c4af
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafftec.ru/strik?utm_term=simple+present+reading+comprehension+exercises+pdf PDF link annotation
    • https://tejigenunonim.weebly.com/uploads/1/3/0/8/130813632/9085281.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366031/normal_5f9844159094c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388428/normal_5f935019e41d1.pdfIn PDF document text
    • https://vuxojamobepu.weebly.com/uploads/1/3/4/3/134333522/xixutumoruk_tivowul_tatik.pdfIn PDF document text
    • https://gafalevomunu.weebly.com/uploads/1/3/4/2/134235362/693275.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369309/normal_5f91b257d6317.pdfIn PDF document text
    • https://sazoxizifa.weebly.com/uploads/1/3/4/5/134505384/deac000ec2d1.pdfIn PDF document text
    • https://viwuwobigoku.weebly.com/uploads/1/3/1/3/131378942/nilatoj-lumuk-lulexupiteleg-viwaz.pdfIn PDF document text
    • https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/6292ad61c99dc02.pdfIn PDF document text
    • https://gomemetunugup.weebly.com/uploads/1/3/2/7/132712315/najuwik.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a37f8295-9fe3-470c-a026-ce69801830a5/95071487679.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a2fb7ba-02b5-4389-88aa-7503dd679179/numenebafefemowafigem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b45368d-966c-46b3-85b5-0d7096bc7e7f/jizevazidadapuresukoruno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c983df9-91c7-44ba-b68a-00e6fe0325aa/tugug.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://scripts.sil.org/OFLIn 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_off0001a913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A913 5740 bytes
SHA-256: f934d788a2ebe43ad51e5b7d294fca2f91d1298b82cc1f3a57353162d3deeb78
font_01_sfnt_off0001bc77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BC77 12848 bytes
SHA-256: 38b698ccb1c492bbb0845872227669a14045a1d2286e73e3041c595be4a27c10
font_02_sfnt_off0001e576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E576 16244 bytes
SHA-256: dc743b41e5c9b9e4d56ad8c22d1311c6eb3cecbc0d04401a7a33aeed2fa7944a

Open this report in the interactive analyzer, or submit your own file for analysis.