Malicious PDF — malware analysis report

Static analysis result for SHA-256 e02a87509978bc83…

MALICIOUS

PDF

53.1 KB Created: 2021-04-03 22:15:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bdc7128c40d77b6df8fddbca4ca4bbf2 SHA-1: f5db9e5177e8adcf515a97ae26a96a53cd71e01a SHA-256: e02a87509978bc83184b0bf0953309bc278bd100762ac957bf90eac190d264bb
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6875

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://baarspo.ru/award?keyword=angiografia+abdominal+pdf PDF link annotation
    • http://health2health.online/widetewaxubafijascrutz.pdfIn PDF document text
    • https://cdn.sqhk.co/xajevedu/idFppgf/infectious_colitis_colonoscopy.pdfIn PDF document text
    • https://cdn.sqhk.co/vupapevixu/ghesVss/best_potstickers_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/nijalemivowo/g9ERojc/retroarch_change_emulator_settings.pdfIn PDF document text
    • http://aydym.club/smart_socket_eu_mini_app5i407.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417208/normal_5fd79e0f7152c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500910/normal_602a91e51fa3c.pdfIn PDF document text
    • https://cdn.sqhk.co/vujejanar/dhdhcvQ/zopozozenikavunivosim.pdfIn PDF document text
    • http://ighelpcenter.xyz/books_like_carry_on_rainbow_rowellh4kse.pdfIn PDF document text
    • https://cdn.sqhk.co/bidomutarili/yLDlZji/flyff_harlequin_quest.pdfIn PDF document text
    • http://4kuhd.me/baderigikipobi493r.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68f28a77-e2c6-4f43-8685-3169ae9d71e1/veritas_prep_reading_comprehension.pdfIn PDF document text
    • https://ddb1515c-011f-4d6c-9a6c-b305a2039a85.filesusr.com/ugd/477ac5_f4bd9e5d15e948ff9f8bb0a044faab3c.pdf?index=trueIn PDF document text
    • https://592f3795-292b-4eb7-bb82-ca7d83343d16.filesusr.com/ugd/44d997_b47db26f271a4dbd9d9be6af42b6aefa.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/352bcd39-ca98-407c-8d88-b1c35195cb11/an_introduction_to_project_management_sixth_edition_free_download.pdfIn PDF document text
    • https://71da2aa5-51c3-4f2c-ab18-08bbbad20131.filesusr.com/ugd/d216cb_da5c1460c45347d5be710ce8db07a8f4.pdf?index=trueIn PDF document text
    • https://4f65501f-cdae-4966-b9db-49b15ad9d196.filesusr.com/ugd/52b593_9242f48d8fcc45a0ae890cfebcacd2a8.pdf?index=trueIn PDF document text
    • https://dc688580-c0ec-4ade-910b-7abffd870ab4.filesusr.com/ugd/096b61_85d282c0866e4868bb6bdf03769f2efd.pdf?index=trueIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.