Malicious PDF — malware analysis report

Static analysis result for SHA-256 c89b56d454624ae0…

MALICIOUS

PDF

143.4 KB Created: 2022-07-06 01:58:44 +00:00 Authoring application: weldae (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: c006792966b2f86e8c2c490ec4a99ad0 SHA-1: a64c73c3aef662dcba5737e90f76ac915180fe05 SHA-256: c89b56d454624ae0909cf8758cbf440621c2d8ef0fd07da11074911009f3cda5
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many of which point to PDFs advertising cracked software. This suggests a lure to download potentially malicious software or exploit kits. The presence of a PDF_SEO_LINK_FARM heuristic firing indicates a deliberate attempt to create a link farm for SEO purposes, likely to distribute malware or phishing content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0084

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • 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://siteslocate.com/cain/cambodians/jakubowski.occular/R3RhIFNhbiBBbmRyZWFzIFBhdGNoIFNyYmlqYSBEb3dubG9hZCBQYyBUb3JyZW50R3R.freeholders/ZG93bmxvYWR8SE01TW14d01ueDhNVFkxTnpBMk56RTFOSHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA PDF link annotation
    • https://braingroom.com/blog/index.php?entryid=4875In PDF document text
    • http://shippingcasesnow.com/?p=8833In PDF document text
    • https://www.duemmeggi.com/wp-content/uploads/2022/07/gerzaid.pdfIn PDF document text
    • https://ntxrealtorresource.net/wp-content/uploads/2022/07/ernenehe.pdfIn PDF document text
    • http://movingservices.us/?p=39020In PDF document text
    • https://www.cranbrookcollege.com/wp-content/uploads/2022/07/Propellerheads_Recycle_V2_12_Incl_Keygen_Air.pdfIn PDF document text
    • https://img.creativenovels.com/images/uploads/2022/07/AdobePhotoshopLightroomCC651Crack64bit_UPDATED.pdfIn PDF document text
    • http://www.studiofratini.com/autocad-2016-hot-keygen-x-force-v1-0-5/In PDF document text
    • https://www.29chat.com/upload/files/2022/07/tIaO1bvEPVgIGpORbIEC_06_1ee2d77dfbfdb0a371414b132a0474c5_file.pdfIn PDF document text
    • https://www.cameraitacina.com/en/system/files/webform/feedback/solucionariodeinvestigaciondeoperacionesgdeppentested.pdfIn PDF document text
    • https://cobblerlegends.com/configurar-impresora-epson-tm-220-con-cable-paralelo-better/In PDF document text
    • https://fagmann.no/wp-content/uploads/2022/07/Revive_Old_Post_Pro_Nulled_PATCHED.pdfIn PDF document text
    • https://myrealex.com/upload/files/2022/07/dG3NTXYxA9eq21gFdxvY_06_2188d3bdd7a700b18cb104c9a54a9c53_file.pdfIn PDF document text
    • http://ajkersebok.com/?p=45373In PDF document text
    • https://www.cameraitacina.com/en/system/files/webform/feedback/raqt-ek-rishta-hindi-movie-download-720p-hd.pdfIn PDF document text
    • https://l1.intimlobnja.ru/sims-4-std-mod/In PDF document text
    • http://seattlemailing.com/wp-content/uploads/2022/07/karkae.pdfIn PDF document text
    • https://www.cranbrookcollege.com/wp-In PDF document text
    • https://img.creativenovels.com/images/uploads/2022/07/AdobePhotoshopLightroomCC651Crack64bitIn PDF document text
    • https://www.29chat.com/upload/files/2022/07/tIaO1bvEPVgIGpORbIEC_06_1ee2d77dfbfdb0a371414bIn PDF document text
    • https://www.cameraitacina.com/en/system/files/webform/feedback/solucionariodeinvestigaciondeopeIn PDF document text
    • https://myrealex.com/upload/files/2022/07/dG3NTXYxA9eq21gFdxvY_06_2188d3bdd7a700b18cb104In PDF document text
    • https://www.cameraitacina.com/en/system/files/webform/feedback/raqt-ek-rishta-hindi-movie-In PDF document text
    • https://prenpenciwanfai.wixsite.com/dafotoothli/post/descargar-fieldgenius-rar-gratis-full-__link__-15lIn PDF document text
    • https://aulasvirtuales.zaragoza.unam.mx/cv/blog/index.php?entryid=11588In PDF document text
    • https://www2.unbc.ca/sites/default/files/webform/alumni/autodesk-autocad-plant-3d-201811-keygen-crackzsoft-64-bit.pdfIn PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • https://www2.unbc.ca/sites/default/files/webform/alumni/autodesk-autocad-plant-3d-201811-keygen-In 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
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