Malicious PDF — malware analysis report

Static analysis result for SHA-256 496e498c2e9f4908…

MALICIOUS

PDF

76.5 KB Created: 2021-02-15 20:36:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4d894c0162ae0a89e10a21f9a1c135e0 SHA-1: 9fc91902e9e26565a1bbbd5f3129a94193acf0c0 SHA-256: 496e498c2e9f49085c6507f732184fd6b222d10977dda3b3cf69dedb4e126091
126 Risk Score

Malware Insights

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

The PDF contains numerous external URIs and is flagged as a link farm on disposable hosting, indicating a phishing or SEO manipulation attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics point towards a malicious document designed to redirect users to potentially harmful sites.

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://leonvi.ru/wix?keyword=samurai+vs+ninja+samurai+jack PDF link annotation
    • https://nafoxowozuvika.weebly.com/uploads/1/3/1/3/131383754/253ca516f.pdfIn PDF document text
    • http://smotrikino.fun/maida_plant_project_reportrh4t1.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/ligUsjf/dining_table_set_for_6_round.pdfIn PDF document text
    • https://jiromozuno.weebly.com/uploads/1/3/5/3/135387519/184912.pdfIn PDF document text
    • http://pomirkapa.site/poe_delve_achievements_guidecr3i7.pdfIn PDF document text
    • http://chempion.coffee/75853973366i3u2j.pdfIn PDF document text
    • https://damobupakul.weebly.com/uploads/1/3/1/4/131453350/ed44a.pdfIn PDF document text
    • http://topmassage.net/edinburgh_tourism_reportonrgm.pdfIn PDF document text
    • http://cheapkeys.site/war_kabir_bgm_ringtone_download_mp3yn7fc.pdfIn PDF document text
    • http://lefegesitorezod.iblogger.org/sony_bravia_tv_manual_controls.pdfIn PDF document text
    • https://digeforoxega.weebly.com/uploads/1/3/4/6/134668277/1863199.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 6

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_off0000f1e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1E3 5216 bytes
SHA-256: 9266a1065efb8b7d85a298535dacec619704a5427eb201ac051de7f98bcdf04c
font_01_sfnt_off00010394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10394 9888 bytes
SHA-256: 1d30e21f3f338b23b2d43a264c09ac97f27b1213862974b3c2041f6d19940b14

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