Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f68a3fd3a2b2b70…

MALICIOUS

PDF

48.0 KB Created: 2021-09-03 22:45:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: fcbb5e223f4311952c2c7b7280a43c9d SHA-1: 98ef9a30c9b8d10e5be412b184f95583b0d6172a SHA-256: 5f68a3fd3a2b2b7034e60da8c9c3ea758c6e87ef22142bc1be828def84f6999d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded URLs, many of which point to compromised or disposable hosting. The ClamAV detection and ML classifier indicate malicious intent, likely for phishing or distributing further malware. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests the document is designed to leverage search engine optimization on potentially malicious or low-reputation domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6237

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://lycee-elm.com/userfiles/file/99833102749.pdf In PDF document text
    • https://aftaplan.com/works/peepsparty/html/upload_files/file/nevexanemobubugipibuzi.pdfIn PDF document text
    • http://www.gabrielamaciel.net/images/content/file/50544878844.pdfIn PDF document text
    • https://rm-parketi.si/uploads/25694403935.pdfIn PDF document text
    • https://panificiopasticceriabattaglia.it/file/ruvonoluwadevumenavefov.pdfIn PDF document text
    • http://app8itebarandgrill.com/admin/images/file/27117058445.pdfIn PDF document text
    • http://abwcolley.com/uploads/files/zoter.pdfIn PDF document text
    • https://electrabicycles.pl/app/webroot/uploads/file/16269931666405.pdfIn PDF document text
    • https://gofropack.com/wp-content/plugins/super-forms/uploads/php/files/fc28f668831730ccda47a45d86c94c14/30745219227.pdfIn PDF document text
    • http://anhuizpyy.com/upload_fck/file/2021-8-9/20210809205656705253.pdfIn PDF document text
    • https://atiksigorta.com/files/66324585222.pdfIn PDF document text
    • https://mongolia-volkslift.com/uploads/files/xoguxejedezupitafaneko.pdfIn PDF document text
    • http://leakefamilyreunion.com/clients/63964/File/27754301962.pdfIn PDF document text
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e8ed092dc3---12934053652.pdfIn PDF document text
    • https://j-kowalewski.pl/uploads/userfiles/files/wudokokixakunox.pdfIn PDF document text
    • http://francisfamilyreunion.net/clients/870293/File/pijanolafid.pdfIn PDF document text
    • https://mikludava.lt/images/files/laluloxotim.pdfIn PDF document text
    • https://protradingindia.net/userfiles/file/xowavogaxaxuwarulota.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606e94e2afed8---62524578231.pdfIn PDF document text
    • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/4b9582c87fa3db2b33c29a88c50ab274/buwowaxegezogujiv.pdfIn PDF document text
    • http://thegioioto.store/upload/files/10000622345.pdfIn PDF document text
    • http://kulturazebrak.cz/userfiles/65496513465.pdfIn PDF document text
    • https://pearproperties.in/userfiles/file/pesojixibamiwosewilagesaw.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c86ed4c6565---439596234.pdfIn PDF document text
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160966de95195c---wifuxux.pdfIn PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c1731a2e047---jebuvagorutojefizekikaxe.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=calgary+city+map+pdfPDF link annotation

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