Malicious PDF — malware analysis report

Static analysis result for SHA-256 1de0f6312465ae2d…

MALICIOUS

PDF

43.9 KB Created: 2021-06-24 16:12:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 5de9007c00606e5519400dba360eea70 SHA-1: 0b4fcf107ecd0602ac85013d5c82bdca89d52229 SHA-256: 1de0f6312465ae2da97569fa5d441b72cba41a56d513b8d4176b27e33b577ee0
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious content or phish users. The presence of external URIs and the nature of the heuristics indicate a likely spearphishing attachment used to redirect victims to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8981

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 https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/2831d79898fb83d18e447f7224bb6eab/27220588900.pdf In PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7b2b0cf412---79209654213.pdfIn PDF document text
    • https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/59f4e9a9bc25f34b15a033c81a47a889/4333370422.pdfIn PDF document text
    • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/07d504ee85cd4f5dd74f4efad90077cd/fajizegezazusivojodetawov.pdfIn PDF document text
    • https://bladmedyczny24.pl/wp-content/plugins/super-forms/uploads/php/files/8f7394a3d0f912c4ca4c8d567ce0b578/59024197780.pdfIn PDF document text
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c7aa7b36674---korepexa.pdfIn PDF document text
    • http://www.irrv.org/uploads/files/13544724532.pdfIn PDF document text
    • https://pointvirgule.ca/upload/editor/file/baperixakovibapisijixa.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093489f25685---dutoluwadanelanubosedoxuj.pdfIn PDF document text
    • http://0-50.ru/userfiles/file/16921892624.pdfIn PDF document text
    • http://shipagents.nl/uploadfiles/file/zurosirugijijaxiwe.pdfIn PDF document text
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/c36ae7a7ea8062ae4d415781660e57aa/womosejozot.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607734d104caf---vobeserarebegikesiserag.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160876f6e96368---90335613147.pdfIn PDF document text
    • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607984b23ad65---xonakamimuwabejone.pdfIn PDF document text
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe50d30576---88727687920.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=gold%2527s+gym+trainer+430i+treadmill+how+to+startPDF link annotation