Malicious PDF — malware analysis report

Static analysis result for SHA-256 7710543711ab50c7…

MALICIOUS

PDF

76.7 KB Created: 2021-05-09 08:57:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a36035f016e662851ecd66815c3391e8 SHA-1: 5e94185c9e3edc63e82a5c643da15d8e8bc05238 SHA-256: 7710543711ab50c7cab5795968185e08564b419953f6b98b9dbd1d7a336f8830
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically pointing to 'zajinet.ru' and including 'anders breivik manifesto deutsch' in the query parameters, suggesting a phishing or redirection attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further indicates a link farm on disposable hosting, reinforcing the malicious intent. ClamAV also detected this file as 'Pdf.Phishing.Trojan'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://zajinet.ru/strik?utm_term=anders+breivik+manifesto+deutsch PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476294/normal_603e757f4081e.pdfIn PDF document text
    • http://iranianvc.com/i_was_sitting_at_the_counter_lyricsjjx0r.pdfIn PDF document text
    • http://mevukavotidu.getenjoyment.net/56967744433.pdfIn PDF document text
    • http://naturfresh.space/69847606085sma30.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476927/normal_5fef47adcc813.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477173/normal_602efcd6f0f1c.pdfIn PDF document text
    • http://bcpreactiva-enlinea.com/33696125874pol8.pdfIn PDF document text
    • http://kopalirigel.mypressonline.com/bimumobirunetomuveka.pdfIn PDF document text
    • http://vuvabadiredowa.getenjoyment.net/calligraphy_tutorial_free_download.pdfIn PDF document text
    • http://neojust.ru/nojusuzonapexulesomogflbeh.pdfIn PDF document text
    • http://wobafobigo.mywebcommunity.org/46007507722.pdfIn PDF document text
    • http://pimifawimonidij.mywebcommunity.org/xagapiwamojidotijimo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418796/normal_5fdc23bd11879.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474999/normal_606d6b0b7127e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382406/normal_606b3e9e9bbc0.pdfIn PDF document text
    • http://jajuviramigawo.medianewsonline.com/finance_for_dummies_australia.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gajopule.myartsonline.com/zabagoda.pdfIn PDF document text
    • http://gizixaxeviduf.myartsonline.com/autocorrelation_test.pdfIn PDF document text
    • http://jatoxat.atwebpages.com/cadastral_surveying_books.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 8

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_off0000e8da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8DA 5480 bytes
SHA-256: 210ee6236a2af38c48b12e25cb4c3125ca880eed4570f5351fffdb3ba4bf5b0a
font_01_sfnt_off0000fb5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB5B 13080 bytes
SHA-256: 78dc33b042a4fb3e9725f77f078d7b70d69af28cc10b31bbac88e189898b3dbb

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