Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a503fc90cecb0b2…

MALICIOUS

PDF

90.5 KB Created: 2021-02-28 11:47:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: cf4c67da8f01d7a2408678349130819f SHA-1: c71bf236074029c717db814f8699c47a378ef0ab SHA-256: 1a503fc90cecb0b2c3a54484d0753143572c0ee035ae0f76106930ad839ca45a
166 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains multiple external URLs and is flagged by ML classifiers and ClamAV as malicious phishing content. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document's intent to trick users into downloading a password-protected archive, likely containing a secondary payload. The document body, though heavily garbled, suggests a lure related to a driver's license exam in Spanish.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://baarspo.ru/strik?utm_term=examen+de+licencia+de+conducir+florida+en+espa%25C3%25B1ol PDF link annotation
    • https://cdn.sqhk.co/lofujumixas/dijjiEs/63208744369.pdfIn PDF document text
    • http://handler-autoscout24.com/vugujaxalab96rh.pdfIn PDF document text
    • http://magnetfix.store/theseus_and_the_minotaur_libro_en_espaolgiykc.pdfIn PDF document text
    • http://bestita.space/82043972943eo263.pdfIn PDF document text
    • http://lg-copyrightforms.com/non_ferrous_alloys_download9v7jg.pdfIn PDF document text
    • https://cdn.sqhk.co/runetonorox/Gibiijm/crewpl_app_download.pdfIn PDF document text
    • http://classkaod.ru/football_squares_template_printablen1kez.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/gcjezji/vonabejeporesizoxunul.pdfIn PDF document text
    • http://xufelaketodo.getenjoyment.net/what_is_my_birthday_today.pdfIn PDF document text
    • http://vitalia-transports.com/zojavezesavavusariramipot67yrr.pdfIn PDF document text
    • http://mxbur.fun/dakuzokutojz162e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455195/normal_5feb4927b6e2c.pdfIn PDF document text
    • https://cdn.sqhk.co/vupapevixu/cMgEJqL/80458267743.pdfIn PDF document text
    • https://cdn.sqhk.co/kasavakujosi/iihcgco/60601782222.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://newemepakirid.myartsonline.com/convert_to_jpg.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001128c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1128C 5536 bytes
SHA-256: efb84fd62c3ae06a5631d91839d021a4ef8eff7572c92a0266772ef150ac4c0f
font_01_sfnt_off00012515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12515 17744 bytes
SHA-256: ee31d8bbf8690b9f4f66b85a0f53d860c0c3d9312f26f0ad4bb240f43f2fab4d

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