Malicious PDF — malware analysis report

Static analysis result for SHA-256 f87ad58652f3dede…

MALICIOUS

PDF

48.8 KB Created: 2021-09-29 10:48:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: c2573a534612ebd5ecafc383eb169117 SHA-1: a03e07d786c61da8709a6af526541b0b3ce82fb2 SHA-256: f87ad58652f3dede4b8e7d410da9b6e9dcd7f7d6520e8635cdf8dbb1e13bf471
124 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with many pointing to disposable or unknown domains, indicative of a link farm. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this by identifying the document as a link farm on disposable hosting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6901

Heuristics 4

  • 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 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 http://donghotam.com/luutru/files/48300226316.pdf In PDF document text
    • http://hotelrefah4ter.ir/basefile/hotelrefah4terir/files/viwegete.pdfIn PDF document text
    • http://erex.hu/upload/file/wolasirus.pdfIn PDF document text
    • https://study-abroad-travel.com/ckfinder/userfiles/file/97171140466.pdfIn PDF document text
    • http://garmaclima.com/uploads/ckfinder/files/fodaxa.pdfIn PDF document text
    • http://designgaleria.hu/userfiles/file/21969816906.pdfIn PDF document text
    • https://amrapalispot.com/userfiles/file/93824965484.pdfIn PDF document text
    • https://lose-weight.tw/upload/files/pixusamu.pdfIn PDF document text
    • https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/8v352blko49dto4duss9fopggm/gabodeliwox.pdfIn PDF document text
    • http://kcpsystem.com/userData/board/file/95622143732.pdfIn PDF document text
    • http://i-dron.cz/data/file/91741911424.pdfIn PDF document text
    • http://mirutte.com/newsfiles/files/vaden.pdfIn PDF document text
    • http://wenyanchem.com/upload/files/zobopejusojijokewe.pdfIn PDF document text
    • http://vasa-project.org/fckupload/file/todulatamiranetezavet.pdfIn PDF document text
    • http://autoscuolauniversale.it/userfiles/files/30675348190.pdfIn PDF document text
    • http://laureysnv.be/uploads/files/54243618458.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/fa020d2f0cd0f28944123b0db0dd23f2/79404060611.pdfIn PDF document text
    • https://www.tvmreza.tv/ckfinder/userfiles/files/71256728393.pdfIn PDF document text
    • https://dehaventransportation.com/home/de/public_html/ckfinder/userfiles/files/6184680569.pdfIn PDF document text
    • http://www.s4b.nl/upload/files/sufigoma.pdfIn PDF document text
    • http://www.binghan.my/userfiles/file/jefedoko.pdfIn PDF document text
    • http://salondebellezaanamariaromero.es/ckfinder/userfiles/files/jekadoluvelulix.pdfIn PDF document text
    • https://bartonsteel.com/tony/barton/ckfinder/userfiles/files/milaf.pdfIn PDF document text
    • http://cancunday.com/travela/img/files/96620342384.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=restart+android+tabletPDF link annotation