Malicious PDF — malware analysis report

Static analysis result for SHA-256 02a190d13a231860…

MALICIOUS

PDF

52.9 KB Created: 2021-07-20 00:12:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-27
MD5: 0a87d79f540229dfaee6bf563dfcfa7c SHA-1: 1d1e93e1be5920919a250d6414bc2fa730f9f83f SHA-256: 02a190d13a231860822a65af789bc7862a4dd91e5988d022fa90c58db99e121a
154 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to multiple compromised WordPress sites, which in turn host other PDF files. This behavior is indicative of a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6164

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://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/1ca7e40d31b73de3d3c6a7667088ef84/28645130264.pdf In PDF document text
    • http://pension-erlkoenig.de/img/editor/file/78278474425.pdfIn PDF document text
    • http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b40ee744b6e---lumox.pdfIn PDF document text
    • https://www.autodepotperformancegroup.ca/wp-content/plugins/super-forms/uploads/php/files/9vbruch6foim6mbu865lrj5d9c/94948626435.pdfIn PDF document text
    • http://divapharma.com/uploaded/file/fazuburuzapugasunuzipugu.pdfIn PDF document text
    • https://vv-alc.nl/uploads/files/vives.pdfIn PDF document text
    • http://provia-events.de/pics/fotos/1/file/16228681955.pdfIn PDF document text
    • http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/770a4d4e904c24f7968b211dedb51a9f/82153797311.pdfIn PDF document text
    • http://keletunderground.hu/images/uploaded_pics/file/70935549948.pdfIn PDF document text
    • http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f197346395---rajomidavuser.pdfIn PDF document text
    • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16077a6d63011c---fezibowonobizoluvopuf.pdfIn PDF document text
    • https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/5jmodqlig3o6eaomkf8ir0qm0j/nejinukafa.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac102150ab.pdfIn PDF document text
    • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/8e7c54577e75a4cd9c706efbb1a0aa75/woworib.pdfIn PDF document text
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160d1b4c985fec---27527014124.pdfIn PDF document text
    • http://bettaletroom.com/file_media/file_image/file/27678305019.pdfIn PDF document text
    • http://crosswaysrecruitment.com/userfiles/file/depapaxesidazebi.pdfIn PDF document text
    • http://carrasvilla.es/uploads/files/vuxaxewibakabimijojuwu.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/e453563ead38561dc3272ff38f3796d2/robevorosuroleded.pdfIn PDF document text
    • https://southernlightingsource.com/wp-content/plugins/super-forms/uploads/php/files/5990a344dbdca5c19e2f2e6e3cbe1ed1/74160161890.pdfIn PDF document text
    • http://asupuro.com/user_data/image//file/zedozutefewusipomezawexi.pdfIn PDF document text
    • https://alkalacarservice.com/public_html/userfiles/file/40229768221.pdfIn PDF document text
    • https://denizlihorozu.com/resimler/files/pesode.pdfIn PDF document text
    • http://geoplan.su/userfiles/file/91965014687.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=the+atlantean+chest+escape+room+answersPDF link annotation

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