Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca65b81cade42516…

MALICIOUS

PDF

146.0 KB Created: 2022-07-24 11:00:49 +00:00 Authoring application: melanok (via PDF Master 1.0.1) First seen: 2026-05-07
MD5: 15468362f030aff85aacae1cdd615033 SHA-1: eeab1541b1ff3eb25fe1f6ba9c861f04dd576a02 SHA-256: ca65b81cade42516264e4289080b7e16be20c691599db1b5e1a2d1dd0ca7432b
224 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0027

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.
  • Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
    PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
  • Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
    PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
  • 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 http://bestsmartfind.com/blouses/ZG93bmxvYWR8Tmc5YmpsbGJueDhNVFkxT0RJeE9ETTBOSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.cements?neurophysiologic/easylabel/spotlighting/QXV0b0NBRAQXV=srxd PDF link annotation
    • https://htownkitchenandbath.com/2022/07/24/autocad-crack-download-pc-windows-final-2022/In PDF document text
    • https://westernmassrealtor.com/wp-content/uploads/2022/07/AutoCAD-32.pdfIn PDF document text
    • https://levitra-gg.com/?p=32896In PDF document text
    • https://sumakart.com/autocad-crack-2022-3/In PDF document text
    • http://pontienak.com/anekamie/autocad-19-1-crack-2022/In PDF document text
    • http://lawcate.com/wp-content/uploads/2022/07/AutoCAD-20.pdfIn PDF document text
    • https://malekrealty.org/autocad-19-1-crack-torrent-free-for-windows-updated/In PDF document text
    • https://lavo-easy.ch/wp-content/uploads/2022/07/AutoCAD_Crack__With_Key_WinMac.pdfIn PDF document text
    • https://srilankapropertyhomeandland.com/wp-content/uploads/2022/07/AutoCAD__Crack_Patch_With_Serial_Key_Free_For_PC.pdfIn PDF document text
    • https://slitetitle.com/autocad-crack-pc-windows-updated-2022-3/In PDF document text
    • https://knowconhecimento.com/autocad-24-0-crack/In PDF document text
    • https://cooltto.com/wp-content/uploads/AutoCAD-55.pdfIn PDF document text
    • http://pussyhub.net/autocad-crack-free-mac-win-updated/In PDF document text
    • https://www.alnut.com/wp-content/uploads/2022/07/phylthi.pdfIn PDF document text
    • https://scoalacunoasterii.ro/wp-content/uploads/2022/07/AutoCAD_Crack___Free_Final_2022.pdfIn PDF document text
    • http://www.affiliate1on1.com/wp-content/uploads/2022/07/AutoCAD-22.pdfIn PDF document text
    • https://believewedding.com/2022/07/24/autocad-20-1-crack-lifetime-activation-code-x64/In PDF document text
    • https://zum-token.com/wp-content/uploads/2022/07/zyliblan.pdfIn PDF document text
    • http://www.over-scene.com/wp-content/uploads/2022/07/AutoCAD__With_Serial_Key_For_Windows.pdfIn PDF document text
    • http://www.trabajosfacilespr.com/autocad-2019-23-0-crack-activation-download-mac-win-2022-latest/In PDF document text
    • https://htownkitchenandbath.com/2022/07/24/autocad-crack-download-pc-In PDF document text
    • https://lavo-easy.ch/wp-In PDF document text
    • https://srilankapropertyhomeandland.com/wp-content/uploads/2022/07/AutoCAIn PDF document text
    • https://scoalacunoasterii.ro/wp-In PDF document text
    • https://believewedding.com/2022/07/24/autocad-20-1-crack-lifetime-activation-In PDF document text
    • http://www.over-scene.com/wp-In PDF document text
    • http://www.trabajosfacilespr.com/autocad-2019-23-0-crack-activation-download-In PDF document text
    • http://bestsmartfind.com/blouses/zg93bmxvywr8tmc5ympsbgjuedhnvfkxt0rjee9ettboshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.cements?neurophysiologic/easylabel/spotlighting/qxv0b0nbraqxv=srxdIn 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
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC0 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off000116ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116AD 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261