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
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains a large number of external links, many of which are algorithmically generated and point to other PDF files. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The presence of multiple PDF_URI and PDF_RANDOM_URL_LINK heuristics strongly suggests an attempt to redirect users to potentially harmful resources.

Machine Learning

  • Nyx PDF Classifier clean score 0.0084

Heuristics 4

  • 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.
  • 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
    • https://braingroom.com/blog/index.php?entryid=4875
    • http://shippingcasesnow.com/?p=8833
    • https://www.duemmeggi.com/wp-content/uploads/2022/07/gerzaid.pdf
    • https://ntxrealtorresource.net/wp-content/uploads/2022/07/ernenehe.pdf
    • http://movingservices.us/?p=39020
    • https://www.cranbrookcollege.com/wp-content/uploads/2022/07/Propellerheads_Recycle_V2_12_Incl_Keygen_Air.pdf
    • https://img.creativenovels.com/images/uploads/2022/07/AdobePhotoshopLightroomCC651Crack64bit_UPDATED.pdf
    • http://www.studiofratini.com/autocad-2016-hot-keygen-x-force-v1-0-5/
    • https://www.29chat.com/upload/files/2022/07/tIaO1bvEPVgIGpORbIEC_06_1ee2d77dfbfdb0a371414b132a0474c5_file.pdf
    • https://www.cameraitacina.com/en/system/files/webform/feedback/solucionariodeinvestigaciondeoperacionesgdeppentested.pdf
    • https://cobblerlegends.com/configurar-impresora-epson-tm-220-con-cable-paralelo-better/
    • https://fagmann.no/wp-content/uploads/2022/07/Revive_Old_Post_Pro_Nulled_PATCHED.pdf
    • https://myrealex.com/upload/files/2022/07/dG3NTXYxA9eq21gFdxvY_06_2188d3bdd7a700b18cb104c9a54a9c53_file.pdf
    • http://ajkersebok.com/?p=45373
    • https://www.cameraitacina.com/en/system/files/webform/feedback/raqt-ek-rishta-hindi-movie-download-720p-hd.pdf
    • https://l1.intimlobnja.ru/sims-4-std-mod/
    • http://seattlemailing.com/wp-content/uploads/2022/07/karkae.pdf
    • https://www.cranbrookcollege.com/wp-
    • https://img.creativenovels.com/images/uploads/2022/07/AdobePhotoshopLightroomCC651Crack64bit
    • https://www.29chat.com/upload/files/2022/07/tIaO1bvEPVgIGpORbIEC_06_1ee2d77dfbfdb0a371414b
    • https://www.cameraitacina.com/en/system/files/webform/feedback/solucionariodeinvestigaciondeope
    • https://myrealex.com/upload/files/2022/07/dG3NTXYxA9eq21gFdxvY_06_2188d3bdd7a700b18cb104
    • https://www.cameraitacina.com/en/system/files/webform/feedback/raqt-ek-rishta-hindi-movie-
    • https://prenpenciwanfai.wixsite.com/dafotoothli/post/descargar-fieldgenius-rar-gratis-full-__link__-15l
    • https://aulasvirtuales.zaragoza.unam.mx/cv/blog/index.php?entryid=11588
    • https://www2.unbc.ca/sites/default/files/webform/alumni/autodesk-autocad-plant-3d-201811-keygen-crackzsoft-64-bit.pdf
    • http://www.tcpdf.org
    • https://www2.unbc.ca/sites/default/files/webform/alumni/autodesk-autocad-plant-3d-201811-keygen-
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

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