Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c474513ae048548…

MALICIOUS

PDF

73.7 KB Created: 2021-02-27 14:13:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: bd6a6813315e9cd8c4841324f2f6d374 SHA-1: 69373fb4c1db95967642c26881c375c4e89f3e75 SHA-256: 0c474513ae0485489d7cc8cacb9706611fc1e027042fff770f1f9b44dffe71b4
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous external links, many hosted on disposable domains, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. The embedded URLs point to suspicious domains, with one specifically identified as a potential lure for crafting software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jumiwimov.ru/award?keyword=how+to+layer+images+in+cricut+design+space PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383687/normal_60233d47c4969.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_6025287029cd0.pdfIn PDF document text
    • http://moreprodukti.com/matshita_cd_rom_drivers_freem50vy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378164/normal_6039441704dac.pdfIn PDF document text
    • http://gakukuketisalum.scienceontheweb.net/what_reading_level_should_a_5th_grader_be_at.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471488/normal_602e13936fed3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414336/normal_5ff7618367a90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446174/normal_6037d36652c88.pdfIn PDF document text
    • http://uspeh.icu/pimsleur_korean_torrentxbdnq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457586/normal_5fef6b6670319.pdfIn PDF document text
    • http://keto-menu.online/554929694776q2f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472766/normal_6013a73e0f28d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fazajupozapufo.rf.gd/nokaweli.pdfIn PDF document text
    • http://dujabonesisu.rf.gd/employment_exchange_registration_form.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/89878881875.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_off0000e312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE312 5548 bytes
SHA-256: 5aa500f5091bd54a2e7f7facf85935f81612f4088e54aa85a06565563980d490
font_01_sfnt_off0000f5f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F4 10412 bytes
SHA-256: 7a2cd348b2f9f2275115e658270883fcef11f31da6a886dab407d1c87b20f96c

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