Malicious PDF — malware analysis report

Static analysis result for SHA-256 efaab9e50b46271f…

MALICIOUS

PDF

39.8 KB Created: 2020-11-08 00:16:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e30e9092dd6921add5fcfc478768651d SHA-1: d0fe973e31e4f67fc97e67b877fa743afb388757 SHA-256: efaab9e50b46271f665cf4c74747cdd7e0f8133570fb20537c664b936ee83a82
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.007 JavaScript

The PDF document contains a lure related to a "Fortnight account generator" and includes a link to a redirector that ultimately leads to a credential phishing page impersonating Disney. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs and a link farm on disposable hosting further supports a phishing attack. No scripts were extracted, but the document structure and embedded URLs point to a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://velabusodogir.weebly.com/uploads/1/3/1/8/131858366/fawabip.pdf.
  • 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://traffnew.ru/123?keyword=fortnight+account+generator+xbox+one PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4371266/normal_5f8eba238904c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370764/normal_5f941c0b34678.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369657/normal_5f895e2aa7135.pdfIn PDF document text
    • https://velabusodogir.weebly.com/uploads/1/3/1/8/131858366/fawabip.pdfIn PDF document text
    • https://jonolepazom.weebly.com/uploads/1/3/4/5/134520471/fibufuje_lowuzilu_zobasi_dosezak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365646/normal_5f87320f76237.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://gorujugiximu.files.wordpress.com/2020/11/karipevo.pdfIn PDF document text
    • https://silisejez.files.wordpress.com/2020/11/reading_words_per_minute_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/texto_argumentativo_ejemplo_corto_para_nios.pdfIn PDF document text
    • https://suvarofora.files.wordpress.com/2020/11/95519257918.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/39910915626.pdfIn PDF document text
    • https://dodumadano.files.wordpress.com/2020/11/rudululufe.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_off00005dd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD6 5012 bytes
SHA-256: a66e34a0dfc7c8b055b95d7f862a20472bfc44a366e45b945ff8949170f5b64f
font_01_sfnt_off00006ee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE9 10508 bytes
SHA-256: 472424aa08df8858f4a2b7f7b9abe529818322b5e57f93c1b8f574d83ba1c4c8

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