Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed34178cae10f5a1…

MALICIOUS

PDF

95.0 KB Created: 2021-03-14 07:44:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5f7d6df482d16b188e02d7fb22d94fdc SHA-1: 18c9c297a9a1d1e52f7faade90bdbe7bc2d49521 SHA-256: ed34178cae10f5a159262efbaf3bf7d1242c00cb4ce3f7f941e7f2a3a72f694a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of numerous embedded URLs suggest the document is designed to redirect users to potentially harmful websites, likely for phishing or malware distribution. The document body contains text related to 'intelligence emotional psicologia' which may be a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kuzutuzo.ru/strik?utm_term=que+es+la+inteligencia+emocional+psicologia PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4368466/normal_5ff6d4051c0aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403948/normal_6046bd6a04ffc.pdfIn PDF document text
    • http://zuvilivupeke.iblogger.org/nuxibamoxo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459776/normal_600a6c115a26a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417645/normal_5fd8954097ba7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387808/normal_60353aa2b65f1.pdfIn PDF document text
    • http://pepariravifaza.getenjoyment.net/club_car_carryall_1500_service_manual.pdfIn PDF document text
    • http://carbags.site/9446173319941gyr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407810/normal_6022b39351d33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495531/normal_602c972218e52.pdfIn PDF document text
    • http://nukels.xyz/jotosasomi819ur.pdfIn PDF document text
    • http://sovuradema.medianewsonline.com/how_long_do_snow_blowers_last.pdfIn PDF document text
    • http://reduslim-siteofficial.site/gatufukovujaxo0v5rf.pdfIn PDF document text
    • http://sidagopuxi.22web.org/15878182531.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379487/normal_5fe74d45f27af.pdfIn PDF document text
    • http://mavigawika.scienceontheweb.net/bidalokofupuzudizelul.pdfIn PDF document text
    • http://mon-compte-cmb.best/what_is_philosophy_logical_positivismpfcf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408721/normal_600b9263276d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365620/normal_602fc6bcae484.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476758/normal_60485c6904910.pdfIn PDF document text
    • http://whysmall.space/acquired_traits_vs_inherited_traitskjm3z.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476146/normal_60010c9b81ee7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000131fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131FB 5216 bytes
SHA-256: debc7590ac940d9d76a96f0d102c6c49e2e0d2c58b4292fb9ec340e089d4e781
font_01_sfnt_off000143b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x143B1 12504 bytes
SHA-256: 17811ccfa68427b91129d00d9a025f018087b6ace0fd699450124f7b4baa1613

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