Malicious PDF — malware analysis report

Static analysis result for SHA-256 4781dca267a0b8d7…

MALICIOUS

PDF

65.9 KB Created: 2020-10-17 20:01:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20
MD5: 873caa0c4e10ceaf8b221f0fbff258d1 SHA-1: 4719b2c439519e6d46e9dcb0560e880b84947186 SHA-256: 4781dca267a0b8d7b1b4c8dcccef81aa0500a7d05eeacadf68602850f5018f52
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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.link/123?keyword=%25D8%25AA%25D8%25AD%25D9%2585%25D9%258A%25D9%2584+%25D9%2583%25D8%25AA%25D8%25A8+%25D8%25AF%25D9%258A%25D9%2586%25D9%258A%25D8%25A9+%25D8%25B4%25D9%258A%25D8%25B9%25D9%258A%25D8%25A9+pdf In PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/d1ee3c84.pdfIn PDF document text
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/7035142.pdfIn PDF document text
    • https://voledobaseju.weebly.com/uploads/1/3/0/9/130969813/339999.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/sefaritonos-nukivafeka-retisebop-regaxumex.pdfIn PDF document text
    • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/tigosorivibisakoxu.pdfIn PDF document text
    • https://jugoruzaja.weebly.com/uploads/1/3/1/4/131407370/jemodogepo.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/ratot_muweliwamopoj.pdfIn PDF document text
    • https://zilavexeredora.weebly.com/uploads/1/3/0/8/130874610/5019593.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/76f9cf25-1231-4563-ae22-e69da3808394/3117716725.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77d1cc19-68e3-49c4-8f37-c61c801cea43/87005217338.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb2e5acb-9066-49e4-b621-c6903c4d8e3a/12312412734.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fc37ad8-80b7-4f0d-a3ae-f5f9dcec8bdb/bitenowil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d07841b-2e53-4051-a669-8b79cd45d1b6/22356102029.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf304eab-1cb9-4c5b-8a92-434cc630ece6/62772946023.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d079bd8e-4786-435b-8b2b-51da73af0431/5206606147.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7729a72b-deea-4421-ae64-2a070baed99e/28861271395.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ad18288-5632-4709-ba70-ae85bf981dcf/juzonito.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64b7ccd5-5243-410a-a052-43f4e52cc8d7/nijudawus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/2557/8159/files/technique_de_prospection_commerciale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/6999/5715/files/31460642765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/7030/2629/files/zipofabatubujibebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6579/4969/files/66268250476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8091/8211/files/37728199179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/8701/8149/files/84569536046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6358/8502/files/zefunobavinoleradepaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/2307/2921/files/ergoline_evolution_600_for_sale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/9199/9926/files/39419328820.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0000c069.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC069 30656 bytes
SHA-256: c0babcdd786b454610f2b51e68a63146407ff348f67778946a7585c46f0e4ca6
font_00_sfnt_off0000728f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x728F 4424 bytes
SHA-256: 92a8fb5bfce1f634dc9932f058c076fc98f9cfcca9b42239870ad26c8b4082ee
font_01_sfnt_off000081ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81AE 1648 bytes
SHA-256: 8170fc3fc409a1c0877eb8fc97c1aa6793fdaed6054e537339186737bbbebbfb
font_02_sfnt_off000089f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F2 17760 bytes
SHA-256: 77f47325c3e03b58939d00e38940a89540904e370a894d345d5f03feef05153d
font_03_sfnt_off0000a49c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA49C 8104 bytes
SHA-256: 2b7a8ea7608323990e4bf8fa4ef7b013e1ee79f1616d9040738b2a4118b1523a

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