Malicious PDF — malware analysis report

Static analysis result for SHA-256 59dd416a30820323…

MALICIOUS

PDF

47.7 KB Created: 2021-09-03 15:01:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: c80e3ce4cb3cfa9ccf1fe2f78205e228 SHA-1: 903d8c36fd16cfa096501b281ca31dff838ebfc3 SHA-256: 59dd416a308203235deadd70d9d5ccfd67a029c14baea6a5d8e3ecd55bf109f4
154 Risk Score

Malware Insights

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

The PDF file contains numerous links pointing to various domains, many of which are hosted on compromised CMS platforms or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. The presence of a link farm suggests an attempt to obscure the final malicious destination and evade detection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7830

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://ohadalegistrocbarter.com/ckeditor/uploads/files/jasad.pdf In PDF document text
    • http://botosani.ro/img/uploads/file/44001099423.pdfIn PDF document text
    • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d398c2ca82---14037977322.pdfIn PDF document text
    • https://minhkygroup.com/luutru/files/4674116462.pdfIn PDF document text
    • http://premiercontainerlines.com/media/ftp/file/9916488022.pdfIn PDF document text
    • http://sbairs.com/datas/files/fiwigexinomomagawon.pdfIn PDF document text
    • http://faxik.ru/ckfinder/userfiles/files/53397245219.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dd9a43331d1---vanisenusuluzanapu.pdfIn PDF document text
    • http://lactopad.com/uploads/files/42743348773.pdfIn PDF document text
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/7jpc86fg1l5qq8av9e55ovpaj7/81337149579.pdfIn PDF document text
    • http://giga.sk/storage/file/kowoxu.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d53f7cd89d---tafoxegimudexugujuku.pdfIn PDF document text
    • http://ayurveda-shiatsu-nice.com/upload/files/matat.pdfIn PDF document text
    • http://globalnetworks.de/www.galabau-poscher.de/main/preview/ckfinder/userfiles/files/17925585737.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=establishment+code+part+2+tamil+pdf+free+downloadPDF link annotation