Malicious PDF — malware analysis report

Static analysis result for SHA-256 4257180864721267…

MALICIOUS

PDF

38.7 KB Created: 2020-10-30 16:15:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 5c036ea743772bea1eaa844763d8d7a1 SHA-1: 7774fbe900539b8ddc9b4ba6ada62022dcfd8f74 SHA-256: 42571808647212679f6e415f761952e692b7c013573cca40d3f8ad06bd4b7986
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://ggtraff.ru/wb?keyword=essential%20elements%202000%20trombone%20book%202%20pdf In PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/pabajab-xujojet-dizuk.pdfIn PDF document text
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/fotikilolusiregofif.pdfIn PDF document text
    • https://talapilodegopez.weebly.com/uploads/1/3/0/9/130969507/jepuwij_nojifinizamo_pevalopetoguxez.pdfIn PDF document text
    • https://mekuxiwefajup.weebly.com/uploads/1/3/0/7/130739023/8b6ae5d9d8ede0.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/kirorafagosox.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/varag-paraxuzi-xobodar-gumuxifula.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://s3.amazonaws.com/fokapikow/sawitodujavekegitefek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d035929-339c-4422-8ddf-f6325f121339/sebasuvojonibodalosuzekir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdcda355-c5f9-4c39-bb1a-b7d8519a655b/zotebelibo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ca40ec3-fd8b-43a2-b3da-fe56d70cfbf0/nabonutujitosarewupil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/3982/4316/files/gugozejiperixed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2924/4315/files/kawozarebakizagepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6112/5015/files/fisher_distribution_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8815/8106/files/suxud.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/79408455540.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_off00004d42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D42 5412 bytes
SHA-256: e856d584ee9f114929358f0ef36088b7d26f4415b4d0492ad309d7d07e798df5
font_01_sfnt_off00005f7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7B 9484 bytes
SHA-256: 9a40f2dd95b0dfa8e65ea8e15cd7409ad474494b843111204bf0bd8b99ecc073
font_02_sfnt_off00007fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE4 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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