Malicious PDF — malware analysis report

Static analysis result for SHA-256 5697293afb89b97f…

MALICIOUS

PDF

94.6 KB Created: 2021-03-02 20:35:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ed13f40064b3a403cfea477ef079e415 SHA-1: b8d33a7c2cf3518ba8736f34bab5b43710e9b41e SHA-256: 5697293afb89b97fa83c80ed403d5b1b37afe3a8806910c76ac6282a65c2abb8
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 embedded URLs and is flagged by multiple heuristics, including a ML classifier and ClamAV, as malicious and phishing-related. The document body, though heavily obfuscated, contains text related to 'warcraft 2 release date' and references wkhtmltopdf, suggesting a lure to a specific topic. The primary malicious URL identified is https://pelibifir.ru/strik, which is likely used to redirect the user to further malicious content.

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://pelibifir.ru/strik?utm_term=warcraft+2+release+date PDF link annotation
    • https://s3.amazonaws.com/zunaporam/fagisetufakajogoj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372085/normal_6008381c37d62.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/anodized_aluminum_sheet_metal_suppliers.pdfIn PDF document text
    • https://cdn.sqhk.co/foseziwate/SAjgrgi/masobunibejisivaj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496391/normal_5fde49e50f75b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417325/normal_6011ec4e42e15.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501993/normal_5fd08db4a7c2f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fodimate.rf.gd/what_is_the_theme_of_ode_to_autumn.pdfIn PDF document text
    • http://biwodonugawodil.rf.gd/full_movie_site_for_mobile.pdfIn PDF document text
    • http://napajex.epizy.com/10552172161.pdfIn PDF document text
    • http://vaguwiraji.rf.gd/android_update_for_galaxy_s6_edge_plus.pdfIn PDF document text
    • http://bokakemipik.epizy.com/free_adobe_indesign_report_templates.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

Related samples 7

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_off00013428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13428 5160 bytes
SHA-256: 51b422aa9902a8a77ed75c3ed7a147d4550690938edd6ae01f827bee1c823718
font_01_sfnt_off000145d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x145D1 11880 bytes
SHA-256: 3bc06b35e3aa8646975ef45f3626e3209e0dfbc5ce1640fb24c6aac47089a047

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