Malicious PDF — malware analysis report

Static analysis result for SHA-256 07101bf19230eac6…

MALICIOUS

PDF

62.5 KB Created: 2021-06-30 06:09:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: b2265781854f41c41b68f27bda45d1d8 SHA-1: 5723c0c45ffaae9c0c50b45b93657ed865bc2059 SHA-256: 07101bf19230eac68f53c4ebbfa41e0141a87017e3748c17fe03cd69e987e99d
154 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites acting as a link farm. The ClamAV detection and ML classifier indicate malicious intent, likely to redirect users to phishing or malware distribution sites. The presence of compromised CMS upload links suggests an attempt to host malicious content on seemingly legitimate but compromised infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6855

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://b-solutions.net/userfiles/file/1255349815.pdf
    • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/a8475aab76b2a540ff6c7277030401d4/sipefa.pdf
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160caf9f38afc8---25619412356.pdf
    • http://sameiroeventos.pt/ficheiros/40730993466.pdf
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608749b3393c3---luvivuwumubo.pdf
    • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/1fea23114af3ab39a6e44a3f764cab40/radivowixa.pdf
    • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/43e0a2009977e8959a7ff73a225a5aee/58832040304.pdf
    • https://www.sudburyhighspeedinternet.ca/wp-content/plugins/super-forms/uploads/php/files/7b8917e369d5780db8abcc96e6260561/lutikuvogajowavewe.pdf
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f11b0419a---kovaloxipudopuwegosubive.pdf
    • http://changwontour.kr/FileData/ckfinder/files/20210616_270C74455C9B6592.pdf
    • http://nowyhotelik.pl/userfiles/file/belelexapulunexoxi.pdf
    • http://abacusnancy.com/userfiles/file/46688801038.pdf
    • http://bakoca.hu/files/file/mekiporixip.pdf
    • https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/rnlkkihcq82htvb4goh6st319m/52058336396.pdf
    • http://creativeindustries.ru/uploads/userfiles/file/damirewawepulamo.pdf
    • http://aceonlinementors.com/userfiles/file/jirululesawawovatopi.pdf
    • https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/scldkentu4fdlgf95qp5v00sgd/gufaxidagilofavowakarap.pdf
    • https://autoandtruckrepair.net/nbloom/fckuploads/file/viburobof.pdf
    • http://www.onlinetemsilci.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072930004a21---dolilewunamixexegen.pdf
    • https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/bf7a5b31dedd4c196dbd5b345880cead/jodud.pdf
    • https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/974b6iur89ih0vuj0miokjbad2/zatet.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=perforated+eardrum+baby

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