Malicious PDF — malware analysis report

Static analysis result for SHA-256 dddda5fdc0e9884f…

MALICIOUS

PDF

44.1 KB Created: 2020-10-26 12:00:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: dc8790e5a9eee83c83b94052b1336248 SHA-1: 19c0fd4d48fe4ff59313a6ab93ec626abbd5deaf SHA-256: dddda5fdc0e9884f8cf1d3f8e92aaf2a8df85bc04b8a9a30d4cffe5322348273
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.me/123?keyword=toyota+yaris+verso+diesel+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4382784/normal_5f91f5ea3085b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411915/normal_5f967b28c841d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391899/normal_5f964b0f94487.pdfIn PDF document text
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/a53d2b3c6a.pdfIn PDF document text
    • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/rozin.pdfIn PDF document text
    • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/8f6d30545.pdfIn PDF document text
    • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/sujaramowib.pdfIn PDF document text
    • https://mejawazur.weebly.com/uploads/1/3/4/2/134265830/vamulo.pdfIn PDF document text
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/587120.pdfIn PDF document text
    • https://rilebowiteb.weebly.com/uploads/1/3/3/9/133986594/9169713.pdfIn PDF document text
    • https://mamunazeve.weebly.com/uploads/1/3/0/8/130814121/xelegaradawode.pdfIn PDF document text
    • https://pimetagedipimop.weebly.com/uploads/1/3/1/6/131636886/8977654.pdfIn PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/zotewug-furasegatevuwin-murolimudixu.pdfIn PDF document text
    • https://taxajadotediru.weebly.com/uploads/1/3/0/8/130873824/fivewudan.pdfIn PDF document text
    • https://senobatupubem.weebly.com/uploads/1/3/1/4/131437889/lakumilevajegik.pdfIn PDF document text
    • https://fidurelofomus.weebly.com/uploads/1/3/0/7/130740547/xefiz_weneluw_gidiwaxataxone.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/xanebavifamopez/borisuxixivajapazuzijegeg.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/samsung_galaxy_s10_manual_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/maria_montessori_biography.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/6711412640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/5746/1440/files/93350655574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/5289/8739/files/2709997825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/8650/1806/files/5_minute_rule_book.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_off0000693e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x693E 5084 bytes
SHA-256: 371c33a0a0732d3376f625af75e32cf3c15b8aa2aee2078ab51ade758cfe7ed8
font_01_sfnt_off00007a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A75 11940 bytes
SHA-256: c44ed639bf5e785e78293144444c6885db818b0bc16d7c74e06d90a2a1648378

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