Malicious PDF — malware analysis report

Static analysis result for SHA-256 cee09416ce55db98…

MALICIOUS

PDF

51.9 KB Created: 2020-10-16 03:58:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 499f4a83064fb941d85baef69c7db557 SHA-1: 5c37be5f402fdaf57492e13c98282c603012b31c SHA-256: cee09416ce55db985fc9ff2ae71bb712021384e1fa46e321f0468bed1774816a
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://cctraff.ru/pify?keyword=ms+word+2020+menu+bar+details+pdf In PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/ruxozukozuvazu.pdfIn PDF document text
    • https://vibebivenef.weebly.com/uploads/1/3/1/4/131412032/171890.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/zavopuro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f87463e5d53d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369509/normal_5f88652ab84ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369630/normal_5f88c618590fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366959/normal_5f88bdfb24ac5.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4d5351fbb209c0.pdfIn PDF document text
    • https://vuxilimibipemop.weebly.com/uploads/1/3/1/4/131453056/kovozo_gekinolexar_wipuxuturox.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/bewoti.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/2697538.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367312/normal_5f88c8138af62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366362/normal_5f8817bdbc663.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372384/normal_5f88cfb13dbe2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368505/normal_5f88d1abdb4c9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0480/9290/5636/files/minneapolis_rowing_club.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0494/7469/9431/files/turkish_cast_on.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/5152/0678/files/xigatomodem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e93b4ccf-8cd3-4557-8975-7fff8279617f/33258514583.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/811d38cb-4ff4-49ee-83fc-d724609a1652/81941851035.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0A 5580 bytes
SHA-256: 534964cec67b2902e1b4bd067f30cb90e3ba2145472921fbba745ee8f4854dfd
font_01_sfnt_off000090f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F3 10156 bytes
SHA-256: 12ec46185a33e46113802b090eb97287b3e7afa7b8d160cd325fb3b38560c77b
font_02_sfnt_off0000b3b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3B7 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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