Malicious PDF — malware analysis report

Static analysis result for SHA-256 cce80c30eec7d5fe…

MALICIOUS

PDF

66.0 KB Created: 2020-11-08 02:00:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: e662b685b23f8ab3b6864940b78a245e SHA-1: ad630765e4b5ad609bc2a6d7881cdb090f450546 SHA-256: cce80c30eec7d5fe3e2a9f2b6b19102b31ff7afa61af79064cd6c89cc35bb905
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/aws?keyword=long+ryders+discography PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382618/normal_5f973a0cec0c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420588/normal_5fa730f05f0c5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371806/normal_5f89785aa5da2.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://uploads.strikinglycdn.com/files/140802c2-7aff-4c49-be8a-12d0783336a1/taboladele.pdfIn PDF document text
    • https://demoxugu.files.wordpress.com/2020/11/tuvazufudogadobibul.pdfIn PDF document text
    • https://manetomimexa.files.wordpress.com/2020/11/68091325827.pdfIn PDF document text
    • https://firomikodow.files.wordpress.com/2020/11/4323902123.pdfIn PDF document text
    • https://xoditova.files.wordpress.com/2020/11/juroxibunebigifido.pdfIn PDF document text
    • https://xikawakomaxe.files.wordpress.com/2020/11/44340086731.pdfIn PDF document text
    • https://zuvebozukovo.files.wordpress.com/2020/11/nepetagik.pdfIn PDF document text
    • https://lojopuwu.files.wordpress.com/2020/11/perk_a_cola_labels.pdfIn PDF document text
    • https://fidunonip.files.wordpress.com/2020/11/8625666511.pdfIn PDF document text
    • https://demoxugu.files.wordpress.com/2020/11/ratelurosutejir.pdfIn PDF document text
    • https://gumomonixita.files.wordpress.com/2020/11/capoeira_angola_songs.pdfIn PDF document text
    • https://berifafu.files.wordpress.com/2020/11/oim_552_lean_manufacturing_notes.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_off0000ad50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD50 5056 bytes
SHA-256: 0d1557bd5a32f4dca5087ef33dd660f8da1a53f60e0b0dc1bba4c90770fc17c1
font_01_sfnt_off0000be6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE6E 18476 bytes
SHA-256: 857762d57252c4dc647f8d33744d55c7ade485678b27f74ec1b5dae4eef379c2
font_02_sfnt_off0000ec81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC81 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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