Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cb1fbde8b6d91f0…

MALICIOUS

PDF

75.0 KB Created: 2021-02-24 20:44:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: cddf25ce4085701f417d5a37c5b54026 SHA-1: 687aa6bb808d775adf18cdfa6016920a5def7ff6 SHA-256: 0cb1fbde8b6d91f0bbb43dc3d7127a08431da8eab18d00ff0f59ae29375b4327
186 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains a large number of external links, many hosted on disposable domains, indicating a link farm designed to redirect users. The document body, though heavily obfuscated, appears to reference a movie title, likely as a lure. The presence of embedded URLs and the overall structure strongly suggest an attempt to distribute further malicious content or phish users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/strik?utm_term=el+amor+en+los+tiempos+del+colera+pelicula+completa+espa%25C3%25B1ol PDF link annotation
    • https://supokiroxuleniv.weebly.com/uploads/1/3/1/6/131606692/bagadutuzebab_wejixenuvusuwo_dewiwovevewojog_rumoda.pdfIn PDF document text
    • https://pujuwofox.weebly.com/uploads/1/3/4/8/134882524/fd48a2944f2.pdfIn PDF document text
    • http://jobs-ingenieur.best/vaniwanavewaxiji6ka8z.pdfIn PDF document text
    • https://cdn.sqhk.co/zojixemem/hgigfGd/24748336684.pdfIn PDF document text
    • https://gibekadizekuni.weebly.com/uploads/1/3/1/4/131452913/d6ab5e729e4ad82.pdfIn PDF document text
    • https://cdn.sqhk.co/xurawupo/evFgj1X/21254519901.pdfIn PDF document text
    • http://storezone.info/film_a_critical_introductionhor25.pdfIn PDF document text
    • http://axacheat4.xyz/gudesirizurikaonjrq.pdfIn PDF document text
    • http://1freedom.space/zifezizawazojedol0mcr.pdfIn PDF document text
    • http://sks-expertiza.ru/9645691045842sk0.pdfIn PDF document text
    • https://tivepikilusu.weebly.com/uploads/1/3/4/7/134759048/komazuva_vunubenajaz_kotileted.pdfIn PDF document text
    • https://cdn.sqhk.co/fagisuxupinu/GyTjjii/senidegafa.pdfIn PDF document text
    • https://werevofapopaja.weebly.com/uploads/1/3/4/4/134492388/difubunate-kularem-ganazodabaxuna-xutan.pdfIn PDF document text
    • https://norofuzalugegok.weebly.com/uploads/1/3/4/8/134882219/5929386.pdfIn PDF document text
    • https://xiridibokolu.weebly.com/uploads/1/3/1/3/131379099/gugozapokud_fofekexip_zesamagopajoxa_wobolaxevi.pdfIn PDF document text
    • http://fruit-italy.space/julius_caesar_movie_2002_rotten_tomatoesif7u7.pdfIn PDF document text
    • http://virona.org/fupozegulobulikavu2b98p.pdfIn PDF document text
    • https://fubomagasikeka.weebly.com/uploads/1/3/4/4/134474343/0987f36058.pdfIn PDF document text
    • http://trikotoria.ru/prenuptial_agreement_texas_templatedtdus.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e55f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55F 5388 bytes
SHA-256: 223b4a5efa505c4fa840031e71ea9bb73f74c586fdb2c56380be6a8e3b8f9d13
font_01_sfnt_off0000f75c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75C 10968 bytes
SHA-256: 13d6afd4fd02371a9984b39c65e943fe0476cf0cbfec2094354f4c556bf4dcab