Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3a691ce307dd86…

MALICIOUS

PDF

78.2 KB Created: 2021-04-08 01:09:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4f52266d16e64c8a58f1a6a9764b2070 SHA-1: e15614b5e0e12699709d7cb30ab23313529a323b SHA-256: 0e3a691ce307dd869ac1d5a398abae2bab2e2ea91da96a1c137491454746c520
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous embedded links, many pointing to disposable or unknown domains, suggesting a link farm or phishing attempt. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically classified as a phishing trojan. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of a phishing lure designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/wix?keyword=library+genesis+website+quora PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366395/normal_604a1ffa2cde9.pdfIn PDF document text
    • http://novobemebubavex.iblogger.org/danabenoxoba.pdfIn PDF document text
    • http://ledaxobakisufi.22web.org/change_to_jpg_iphone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459621/normal_600dd06cccf7b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387826/normal_600a4ef88fe77.pdfIn PDF document text
    • http://xenuven.22web.org/74495788751.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/89f17bd2-26e4-4357-aba5-4f9510409b74/how_to_cite_a_book_title_in_chicago_style.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6768eea6-7f02-4565-90d3-6d730d7ed165/68191818201.pdfIn PDF document text
    • http://gipuluzew.rf.gd/thriller_english_movies_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11a338b8-0d79-41a3-a498-10a902e45fd4/wordpress_themes_for_food_blogs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cd47a14-c374-4adc-98e3-966dbac78707/31119517076.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/loxelesagolorew.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/ripogi.pdfIn PDF document text
    • http://vepesupilet.epizy.com/accounting_income_statement_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tamovagag/cyber_security_engineer_salary_in_dubai.pdfIn PDF document text
    • http://topufopotu.epizy.com/theorizing_posthumanism.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d716116-6680-4ae0-b83f-748376881322/casio_ctk_2080_midi_driver.pdfIn PDF document text
    • http://padadubijimesib.epizy.com/pewefipiko.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/59877396736.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/bol_chudiya_bol_kangna_video_hd.pdfIn PDF document text
    • http://dudolisimak.epizy.com/29261678929.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_off0000f3ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BA 5224 bytes
SHA-256: db6cb8ff6575d566d0436778b698eb367b8cb1198b6f2262a742de3be0c73aa6
font_01_sfnt_off000105a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105A8 10740 bytes
SHA-256: d742d80f60211b16d1cf829af4a245661b7c75cbd0b130164604114ba7d6b71a

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