Malicious PDF — malware analysis report

Static analysis result for SHA-256 24b5dc14dd6cfd64…

MALICIOUS

PDF

55.4 KB Created: 2021-03-18 15:59:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: a61cb0ee023ccd8af65679c853e67a33 SHA-1: fef23ff3861d39b4a3a350dc58caa3200998ab7d SHA-256: 24b5dc14dd6cfd64f5bcf9a42ae0be5e6740f3314b01ad9f7217d8eb7bd0af17
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing campaign. The ClamAV detection and ML classifier indicate malicious intent, likely to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of an attempt to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5478

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://kuzutuzo.ru/award?keyword=calendario+sep+2020+a+2020+pdf PDF link annotation
    • https://subijiderekura.weebly.com/uploads/1/3/4/6/134616270/dututosizuduzuwe.pdfIn PDF document text
    • https://fugopezawisobib.weebly.com/uploads/1/3/1/3/131383650/6d7484d3e6782ff.pdfIn PDF document text
    • https://voruvagozi.weebly.com/uploads/1/3/4/7/134742827/funuvowikibaxox.pdfIn PDF document text
    • https://cdn.sqhk.co/sesexibanobu/a2mijic/xafuwisejakitabaziwaditer.pdfIn PDF document text
    • https://cdn.sqhk.co/mutexeze/eIjhAhe/38537888102.pdfIn PDF document text
    • https://cdn.sqhk.co/dowufagit/bidIjjo/xavakatupodidipogirida.pdfIn PDF document text
    • https://sejimewopokotas.weebly.com/uploads/1/3/5/3/135350214/vogalugunedo.pdfIn PDF document text
    • https://cdn.sqhk.co/badaxiloru/aF5LhjO/lajaxapenisilep.pdfIn PDF document text
    • https://kegibaxita.weebly.com/uploads/1/3/4/6/134661687/pinedonid.pdfIn PDF document text
    • http://fabovodowep.epizy.com/el_barril_amontillado_edgar_allan_poe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ae37d27-c0a6-4f7e-abab-da61ebc1c8b3/badexekevorerokapoxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c9d6183-6db9-4afb-aa27-1711694e9d8f/unit_operations_of_chemical_engineering_7th.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf11496b-a77e-4a16-bbca-de19811d93fd/star_wars_novels_best_to_worst.pdfIn PDF document text
    • http://famefikapipu.epizy.com/62631700937.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/30567166926.pdfIn PDF document text
    • http://mifijikamipupu.epizy.com/81489208663.pdfIn PDF document text
    • https://s3.amazonaws.com/zugutixe/juventus_transfer_news_bleacher_report.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/47384117044.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/56240427084.pdfIn PDF document text
    • http://nabasuxogakuwet.epizy.com/aakasha_ganga_sad_video_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4095ca9-95ea-4041-93d8-8cd4b5e44920/sokirudikulivigilonogegus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40f97da1-6457-46ff-98d7-d99a725974bf/hillsborough_school_district_calendar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c040cef-dd3c-4a35-b3a0-96a6ef53fa97/welcome_to_the_monkey_house_analysis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c71930c-50c7-4f93-a33d-4269effcad4e/panasonic_blu_ray_dmp-bd75_remote_codes.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/44883590411.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86224df6-e6d4-4f59-a722-0200e2dcd636/ncert_solutions_class_9_science_chapter_11.pdfIn PDF document text

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