Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6905774d61c3ab…

MALICIOUS

PDF

77.3 KB Created: 2021-02-13 08:17:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-17
MD5: 6ae50ff09ee6599d63d220766cfaa7b0 SHA-1: eacb5d857572cb918eb1b7495f17eaf4697a6e20 SHA-256: 2b6905774d61c3ab8e4dccbe148ef2c2bb787237fd1daee84ca9418f6f242261
196 Risk Score

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/wb?keyword=new%20year%20shayari%20image%202019 PDF link annotation
    • https://cdn.sqhk.co/zifeduwa/osYjcM7/60987467711.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460723/normal_5fde029884795.pdfIn PDF document text
    • http://wazalugele.22web.org/86379927468.pdfIn PDF document text
    • http://lifokuvaxodime.iblogger.org/xfinity_channel_guide_boston_ma.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477147/normal_5fdc06c75a36e.pdfIn PDF document text
    • https://bodosimif.weebly.com/uploads/1/3/3/9/133999894/8269497.pdfIn PDF document text
    • http://bilapak.66ghz.com/tafigu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424025/normal_5ff8ac616ddd1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414695/normal_5fe394a1bfd09.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488809/normal_600839d8a3692.pdfIn PDF document text
    • https://bakadowo.weebly.com/uploads/1/3/1/3/131380427/jubefo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/gatazeromij/78923710709.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/electric_renewable_energy_systems.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/bride_and_prejudice_full_movie_1080p.pdfIn PDF document text
    • http://tesoxukezeziles.epizy.com/35731838688.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/jawure.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dff2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF2 5712 bytes
SHA-256: 5be43457d10474d0ca7a17c32484b6c8b1796acf531d7f9e5056b939d6c93d87
font_01_sfnt_off0000f35c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF35C 11432 bytes
SHA-256: 148bd0d70272be62e6e6450b2eecc5566aa6e62dc2f15d61f7a3225e929b0969
font_02_sfnt_off000118c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118C3 4044 bytes
SHA-256: 4464f363836cf903f3b40bac63441a9943687c670a61ffc89142920dfd620312