Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c5521a4b16906a…

MALICIOUS

PDF

117.2 KB Created: 2022-07-04 03:31:23 +02:00 Authoring application: catekaa (via PDF Master 1.0.1) First seen: 2026-04-26
MD5: 1a55018fb029bcadd0b17eada3a29658 SHA-1: 57c1df9a644473932f929f8e517ea765583ed218 SHA-256: a9c5521a4b16906a18348fa90c1dc5374c1a718405aa7c5991e34bc26873c501
204 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0114

Heuristics 7

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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
  • 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://tlniurl.com/2sjza8 PDF link annotation
    • https://dealstoheal.com/?p=4304In PDF document text
    • https://unicorina.com/hibit-system-information-portable-1-5-25-crack-with-serial-key-x64/In PDF document text
    • https://sbrelo.com/upload/files/2022/07/SAd38ERSoSLx8JYGBXCT_04_45b83f358df49223081002dc0a03c071_file.pdfIn PDF document text
    • https://eitci.org/sites/default/files/webform/logos/advanced-image-resizer-2007.pdfIn PDF document text
    • https://blaquecat.com/community/upload/files/2022/07/KfTUg3S3xEDfOQlwNJte_04_210f4e0655924f22350ada79f3d82532_file.pdfIn PDF document text
    • https://travelwithme.social/upload/files/2022/07/tcXNgGHWhAPqNKNc8KSL_04_45b83f358df49223081002dc0a03c071_file.pdfIn PDF document text
    • https://bminvestmentsltd.com/wp-content/uploads/2022/07/laqufran.pdfIn PDF document text
    • http://www.barberlife.com/upload/files/2022/07/Z5uGHiOsSdBfuhoOrx1p_04_12350276734b591ee6b64fabebc5e417_file.pdfIn PDF document text
    • http://yotop.ru/2022/07/04/greenfoot-crack-pc-windows-latest/In PDF document text
    • http://journalafrique.com/portable-qbo2qif-crack-download-2022/In PDF document text
    • http://tekbaz.com/2022/07/04/libreoffice-sdk-crack-final-2022/In PDF document text
    • https://www.sdssocial.world/upload/files/2022/07/DHuxu47uaFugxsmoYUZb_04_45b83f358df49223081002dc0a03c071_file.pdfIn PDF document text
    • https://liquidonetransfer.com.mx/?p=35549In PDF document text
    • https://csermooc78next.blog/2022/07/04/rbtray-crack-latest/In PDF document text
    • https://kjvreadersbible.com/read-this-crack-product-key-download-for-windows/In PDF document text
    • https://www.footballdelhi.com/fabfilter-pro-r-6-42-46-0-crack-for-pc-latest-2022/In PDF document text
    • http://www.ndvadvisers.com/?p=In PDF document text
    • https://blackchurchlistings.com/wp-content/uploads/2022/07/Debt_to_Income_Ratio_Calculator.pdfIn PDF document text
    • https://floridachiropracticreport.com/advert/portable-sleipnir-password-decryptor-keygen-full-version/In PDF document text
    • http://www.tcpdf.orgIn 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/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A95 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000b1c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1C0 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261

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