Malicious PDF — malware analysis report

Static analysis result for SHA-256 be8afa3e2533e287…

MALICIOUS

PDF

34.6 KB Created: 2020-10-25 14:19:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: bb5de69d6b843ee102925b970eca1138 SHA-1: 69fa3b63c109ea73aff5d0d9e2f596f54f5e1362 SHA-256: be8afa3e2533e287141c3e154dad4870a79cbe328935588723238418ca9224f7
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to external PDF files hosted on link farm domains. The primary heuristic indicates these links are part of a malicious redirector infrastructure, likely intended to lead users to harmful websites. The document body, though heavily obfuscated, contains URLs that align with this finding.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://gettraff.ru/wb?keyword=poultry%20business%20plan%20sample%20pdf In PDF document text
    • https://morekifozolil.weebly.com/uploads/1/3/4/3/134332894/9017758.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/5d1917494bd9.pdfIn PDF document text
    • https://luwobidope.weebly.com/uploads/1/3/0/8/130814225/8f4c3a8934a.pdfIn PDF document text
    • https://tezosarotijup.weebly.com/uploads/1/3/4/3/134305137/4829065.pdfIn PDF document text
    • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/xufor_modulokivonobu_fimivekixuvaba_nananexonuriz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366348/normal_5f8b70afa4d0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374840/normal_5f8ca84024731.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379723/normal_5f8a6a031d9a2.pdfIn PDF document text
    • https://jipemovikeral.weebly.com/uploads/1/3/4/0/134012889/dbd7244f15aa.pdfIn PDF document text
    • https://digulowewuw.weebly.com/uploads/1/3/4/3/134363346/xulopojefa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcb83fba-490d-4a1c-bb07-d1101195b345/reconnaissance_vocale_windows_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1127ec8d-9732-4205-83e2-b517ef98aae6/system_analysis_and_design_mcq_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/multivariate_data_analysis_7th_edition_download.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/26080026907.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/project_on_financial_analysis_of_a_company.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/rexogavoxapotimulogixike.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_off000049a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49A6 5432 bytes
SHA-256: efc80c8fb06cc9240b99f81884bec9467880489db330e08a3b54c428c5c2b565
font_01_sfnt_off00005bff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BFF 9796 bytes
SHA-256: c50809dd1e72d9c3fe7f5c7d709b13f0665e2b8710085d42abc69de9e1d4afcd

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