Malicious PDF — malware analysis report

Static analysis result for SHA-256 8be0d429cb94f931…

MALICIOUS

PDF

44.1 KB Created: 2020-10-16 17:46:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1adc88cbc4867e6e4a80cb847998b01e SHA-1: a020eb34295e4db54de71f0cdfa691463efeb858 SHA-256: 8be0d429cb94f931fd1f42139ebf276209d6181251cb83a280cd75eaa1cf66b4
184 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.
  • 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.
  • 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.club/pify?keyword=my+talking+tom+mod+apk+version+2.1.1 In PDF document text
    • https://xumogimunosu.weebly.com/uploads/1/3/1/6/131607683/a73cbec3e716.pdfIn PDF document text
    • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/tigosorivibisakoxu.pdfIn PDF document text
    • https://lajojixuvoporor.weebly.com/uploads/1/3/0/7/130738555/3b7ee7d8.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/podijudikufidasu.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/boralipesasefal_tufedinibe_vurevavetowebaj.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/wujilutu-xekoxuwi-vobiva-fudek.pdfIn PDF document text
    • https://virataxutepubom.weebly.com/uploads/1/3/0/8/130874282/kimodusanadumom.pdfIn PDF document text
    • https://runebipunozup.weebly.com/uploads/1/3/1/4/131406604/ditogijuk-fadil-valumelo-lebonataf.pdfIn PDF document text
    • https://tejigenunonim.weebly.com/uploads/1/3/0/8/130813632/eecc1.pdfIn PDF document text
    • https://vibebivenef.weebly.com/uploads/1/3/1/4/131412032/vesedexomokapo.pdfIn PDF document text
    • https://jabiratunibi.weebly.com/uploads/1/3/2/6/132683422/kepaj.pdfIn PDF document text
    • https://rijizego.weebly.com/uploads/1/3/0/7/130776487/9289705.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/telopubujixamivope.pdfIn PDF document text
    • https://mamunazeve.weebly.com/uploads/1/3/0/8/130814121/wabibaku.pdfIn PDF document text
    • https://dofazodasi.weebly.com/uploads/1/3/0/8/130873943/nolifirazusa_lolaluforedupin.pdfIn PDF document text
    • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/nopopi.pdfIn PDF document text
    • https://mogezisatizate.weebly.com/uploads/1/3/0/7/130775403/4197128.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0314/9477/files/48117431883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6640/1692/files/hobart_handler_125_ez_tractor_supply.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/8172/7640/files/tates_bake_shop.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_off00006bb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB6 5728 bytes
SHA-256: 24ad7e82d89a72ed68b6c82a9010fc663b3970de2519c3722ecd4c5aa7a8afab
font_01_sfnt_off00007f3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F3C 10412 bytes
SHA-256: df3a762bdd6e67caebb3de28ffd9bd27b33f9815b217084e30247207a81a3287

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