Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c36a459b862ff42…

MALICIOUS

PDF

42.0 KB Created: 2020-11-08 04:42:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 2281bdc8468a2d7d93e1ffebeef39602 SHA-1: a547532b9fa07daac1b7cc413ae08ffafe7f2fe6 SHA-256: 6c36a459b862ff42885ba09ce31d79d59934dbf1c852b996032b3d4a0005cbfb
124 Risk Score

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 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://traffking.ru/123?keyword=5e+diplomat+pack In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366369/normal_5f9537c42aded.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381971/normal_5f8d5a6806f06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406775/normal_5f96255b62a69.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://pifakimep.files.wordpress.com/2020/11/fododuxuxinoni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf2d311a-5967-435c-8e1b-d44003e4d5e4/23644148654.pdfIn PDF document text
    • https://lafukoruza.files.wordpress.com/2020/11/patopizezapudegeg.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/mini_golf_king_-_multiplayer_game.pdfIn PDF document text
    • https://tevarew.files.wordpress.com/2020/11/88608638079.pdfIn PDF document text
    • https://filipebire.files.wordpress.com/2020/11/sacred_heart_diet_recipe_for_the_sou.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/marketing_management_15th_edition_download.pdfIn PDF document text
    • https://wevixeda.files.wordpress.com/2020/11/mejejup.pdfIn PDF document text
    • https://lusabun.files.wordpress.com/2020/11/etica_nicomaquea_politica_aristoteles.pdfIn PDF document text
    • https://xivikutedito.files.wordpress.com/2020/11/52885609987.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A31 4720 bytes
SHA-256: ad194eaf88752cfaf663e63d8f4c3ef98047e1de55b8b32cc6d245831cce0206
font_01_sfnt_off00006a44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A44 10288 bytes
SHA-256: cc70fd48fff094018e0e795fc49c061895420c431af687faa8b6fa23d1331825
font_02_sfnt_off00008d6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6A 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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