Malicious PDF — malware analysis report

Static analysis result for SHA-256 bce5f3df4ed7db03…

MALICIOUS

PDF

208.0 KB Created: 2021-07-05 13:26:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: aa4cc3884bac80ceb780c87aeaf4d310 SHA-1: 4ad40f410857bc3c976f9845c4eec8480ed45a5d SHA-256: bce5f3df4ed7db03567bddf82e281ca46fc54c0e694462fb5d88d13d6dc1eb50
124 Risk Score

Malware Insights

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

This PDF was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. It contains numerous links pointing to compromised WordPress sites, specifically targeting upload directories, which are likely used to host and distribute further malicious payloads. The presence of PDF-specific exploit indicators suggests it may attempt to exploit vulnerabilities for client execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7976

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
  • 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.
  • 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.synergyheart2heart.team/wp-content/plugins/super-forms/uploads/php/files/97f7egg4vil1gm1eedha4e8tdo/47409535488.pdf In PDF document text
    • http://microcement.ua/userfiles/file/38244897289.pdfIn PDF document text
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/8df1d72c9d3c6894642e9ad097f64a27/23815939724.pdfIn PDF document text
    • http://gallery4walls.com/upload/editer/file/8855914668.pdfIn PDF document text
    • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160b794a55fe90---7563921148.pdfIn PDF document text
    • https://fruzsiflame.hu/userfiles/file/64868756913.pdfIn PDF document text
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a197ca2fd42---kumevozedotigetifa.pdfIn PDF document text
    • https://celebicatering.com/upload/ckfinder/files/31697515804.pdfIn PDF document text
    • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acca1d218e7---vizububerubif.pdfIn PDF document text
    • https://store-connector.com/_upload_bilder/_filemanager/file/19288201616.pdfIn PDF document text
    • http://foto-klub.dk/userfiles/file/xidog.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/37eaf8945322b26d1f3937347f4d11ce/94492803631.pdfIn PDF document text
    • http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/65e44h82n0ld52q4btgi4evto2/fabedomezulavekona.pdfIn PDF document text
    • https://realestateconnect.us/wp-content/plugins/super-forms/uploads/php/files/8ie26cg4irghlra1mckh113d07/waxerajibitirusekuguxoma.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/nneisenj5hrh6cbg0klnrv7m77/modememoguw.pdfIn PDF document text
    • https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/aaa684cdc11ead1290be044217c550fb/wogutalikumuxatev.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b02eada37b---muxemewawuf.pdfIn PDF document text
    • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f154e0f761---gozejorujaxovudet.pdfIn PDF document text
    • https://calmoinc.com/upload/editor/file/tejewelexazawixol.pdfIn PDF document text
    • http://ylphs.com/ckfinder/userfiles/files/50668426937.pdfIn PDF document text
    • http://dbcasagayathottam.org/assets/uploads/cms_images/files/75785552225.pdfIn PDF document text
    • http://sun-tes.ru/files/file/4681259491.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/a91bc290cdd746dabcabe7080b95628d/48204346030.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097f9b3c39b7---42289343162.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/5763791215.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=the+perimeter+of+a+sector+of+a+circle+of+radius+5.6+cm+is+27.2+cm+find+the+area+of+the+sectorPDF link annotation