Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7de0d684fc6466…

MALICIOUS

PDF

40.9 KB Created: 2020-10-30 09:54:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: 2cb143bc49ba3650d6f19cd299d123a0 SHA-1: eec08a9ef38bf86105afe61bff3e91f464a2f93a SHA-256: cd7de0d684fc64660f6b06aedea9fff2857193ae5cdf13635ef9f4d35f1c4ecb
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.com/123?keyword=game+of+dice+apk In PDF document text
    • https://mipolapepel.weebly.com/uploads/1/3/4/3/134395859/radoxu.pdfIn PDF document text
    • https://nipufijupetobug.weebly.com/uploads/1/3/1/4/131482996/watujedakedo.pdfIn PDF document text
    • https://korodaziso.weebly.com/uploads/1/3/0/7/130740443/pukadelino-tigafowikuxedap-remadumawalun-sozukepevoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407327/normal_5f968b95d9c7d.pdfIn PDF document text
    • https://pirivelel.weebly.com/uploads/1/3/4/5/134505874/duneve.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409096/normal_5f9b7bd897bc4.pdfIn PDF document text
    • https://worobewunit.weebly.com/uploads/1/3/1/4/131406731/wulob.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tadovu/automatismo_mental_paranoia.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/sukilekepanajowamiwimeg.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/metodologia_de_la_investigacion_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/occupational_safety_and_health_standard_of_the_philippines_dole.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/87703893698.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d413802f-cda8-4291-8797-a0823d9637c6/pogomujifumatazakibu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F7 5088 bytes
SHA-256: fad90183ffc28d4381dc67caf9204c14781c31f936beecb06fe9171de566bffd
font_01_sfnt_off00007549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7549 9912 bytes
SHA-256: cdb0a62d818905ac96a4a1e306766238c073178855ba952cbb61cc3aace9ad1e