Malicious PDF — malware analysis report

Static analysis result for SHA-256 d31bf18b71bdf2b2…

MALICIOUS

PDF

118.5 KB Created: 2022-07-06 09:27:48 +00:00 Authoring application: jaesalt (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 60295945407d1e032a8598df00463a10 SHA-1: fd595ae3dc434e87048799f75061c8f7b6b3c4a6 SHA-256: d31bf18b71bdf2b225fad0722bad511d098722973617afb8a5cfc85e068f1968
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1598.003 URL Shortening

The PDF contains a large number of external links, many of which point to suspicious domains, indicating a link farm or SEO abuse tactic. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior. The embedded URLs likely serve as entry points for further malicious activity, such as downloading additional payloads or redirecting to phishing sites.

Machine Learning

  • Nyx PDF Classifier clean score 0.0215

Heuristics 3

  • 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.
  • 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://widesearchengine.com/authenticity.barreled?ZG93bmxvYWR8bFUzWm14bmEzeDhNVFkxTnpBMk56RTFOSHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA=benton&malloreddus=reassurance=&cucumbers=bmllbWkgNzQgdHN1Ym9taQbml PDF link annotation
    • https://axisflare.com/upload/files/2022/07/6OYjlZyz61iqF26roLRL_06_758b0f405155716baa47c860bde774d7_file.pdfIn PDF document text
    • http://classiswisconsin.org/wp-content/uploads/2022/07/florgeor.pdfIn PDF document text
    • https://www.dvelecon.com/en/system/files/webform/scievas816.pdfIn PDF document text
    • https://www.sunsquare.com/system/files/webform/useruploads/boyo-and-carla-reading-book.pdfIn PDF document text
    • https://www.eeimi.com/wp-content/uploads/2022/07/1657099664-6ff0e763313d202.pdfIn PDF document text
    • https://www.mountolivetwpnj.org/sites/g/files/vyhlif4736/f/uploads/brochure_mount_olive_10-22.pdfIn PDF document text
    • https://www.reperiohumancapital.com/system/files/webform/meelean102.pdfIn PDF document text
    • https://socialstudentb.s3.amazonaws.com/upload/files/2022/07/Ns7DtoWs2ttwnlVucMxK_06_758b0f405155716baa47c860bde774d7_file.pdfIn PDF document text
    • https://the-chef.co/globesurfer-x-1-firmware-download-rar-__link__/In PDF document text
    • http://wp2-wimeta.de/serial-number-for-photoshop-cs6-april-2013/In PDF document text
    • https://www.north-reading.k12.ma.us/sites/g/files/vyhlif1001/f/uploads/sc_2021-22_final_goals.pdfIn PDF document text
    • https://choicemarketing.biz/cheat-engine-script-not-activating/In PDF document text
    • https://our-study.com/upload/files/2022/07/6wwSletgjKBpEts7IicF_06_6f82abcd6e146429399a04f448b7c5ab_file.pdfIn PDF document text
    • https://www.cameraitacina.com/en/system/files/webform/feedback/chryslerradiocodecalculator.pdfIn PDF document text
    • https://www.townofguilderland.org/sites/g/files/vyhlif7546/f/uploads/tawasentha_trail_map.pdfIn PDF document text
    • https://losoxla.net/flash-media-server-3-5-serial-number/In PDF document text
    • https://www.barnabystewart.com/system/files/webform/candidate-applications/might-and-magic-heroes-vi-shades-of-darkness-crack-skidrow.pdfIn PDF document text
    • https://axisflare.com/upload/files/2022/07/6OYjlZyz61iqF26roLRL_06_758b0f405155716baa47c860bdIn PDF document text
    • https://socialstudentb.s3.amazonaws.com/upload/files/2022/07/Ns7DtoWs2ttwnlVucMxK_06_758b0f4In PDF document text
    • https://our-study.com/upload/files/2022/07/6wwSletgjKBpEts7IicF_06_6f82abcd6e146429399a04f448In PDF document text
    • https://www.barnabystewart.com/system/files/webform/candidate-applications/might-and-magic-In PDF document text
    • https://trello.com/c/xzMvpGXY/51-factory-physics-3rd-edition-solutions-manual-rar-bestIn PDF document text
    • http://atlato.yolasite.com/resources/Managerial-Economics-Paul-Keat-5th-Edition-Ebookrar.pdfIn 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

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