Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7be6a508d2a0b1a…

MALICIOUS

PDF

44.3 KB Created: 2021-09-26 20:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 3c7c99ea39fa26872cd5d86bd9745b35 SHA-1: 2f3d3c9b2846828058522c02b719843bc8ac6597 SHA-256: a7be6a508d2a0b1a579c40e044f5f2146b24a7bd5fea7c7e7ff4ace777fb61c3
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier further support its malicious nature, likely serving as a phishing lure or a distribution point for further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5500

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://iscyber.com/userfiles/files/84507270485.pdf In PDF document text
    • http://2015.letnifestiwal.pl/ckfinder/userfiles/files/baxegemu.pdfIn PDF document text
    • http://autosoftware.company/autoresponders_images/files/35905615972.pdfIn PDF document text
    • http://pekbdt.com/filespath/files/20210905115205.pdfIn PDF document text
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/bdcad8c36444662d66fd7be97f9b9628/pejukuvun.pdfIn PDF document text
    • http://cualuoiskydoor.com/webroot/img/files/vonun.pdfIn PDF document text
    • https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/0f2351e339154aa49f2582f5b832c647/putigevujerokesobufoxuve.pdfIn PDF document text
    • http://telegid.tv/userfiles/files/dewamejesobujujifo.pdfIn PDF document text
    • https://laetitiabernard.fr/images/file/65787626338.pdfIn PDF document text
    • http://gewald.ru/content/Files/13435248759.pdfIn PDF document text
    • http://sirmamedia.com/ckfinder/userfiles/files/kakopeliwalesigarateg.pdfIn PDF document text
    • http://laconchigliacasevacanze.it/userfiles/files/gutulukotuwixidewunibipo.pdfIn PDF document text
    • http://meubelenindex.nl/images/uploads/filepixurakutapatapap.pdfIn PDF document text
    • https://asi-filter.pl/files/file/77889069642.pdfIn PDF document text
    • http://linker-apps.com/files/294546080.pdfIn PDF document text
    • http://online-cycling.com/files/file/27706059963.pdfIn PDF document text
    • http://feuerwehrobrigheim.de/upload/files/fopor.pdfIn PDF document text
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/90565db96335992c50c01c3884308e0c/27789802152.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614f8b90206a1---jefepaduniw.pdfIn PDF document text
    • http://websurin.net/UserFiles/File/mumaf.pdfIn PDF document text
    • http://bhk-aindling.com/userfiles/files/86801726744.pdfIn PDF document text
    • http://hamzalegalservices.com/userfiles/file/sisoj.pdfIn PDF document text
    • https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614084e03656c---85715940063.pdfIn PDF document text
    • http://clubselectionvoyages.net/images/file/2504583510.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=lucky+money+feel+great+and+make+it+rain+mod+apkPDF link annotation

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