Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c59c6b7ed20b78…

MALICIOUS

PDF

52.9 KB Created: 2021-09-13 08:54:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 80cafbbd5046ad907c1a79bae51ddb00 SHA-1: 763575b04a60d3fcbc582ef9573b9f884722d531 SHA-256: 49c59c6b7ed20b7880d3fbb2195793606a930626c335e8d1dc361092a931386b
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. The presence of numerous embedded URLs, many pointing to disposable domains and configured as a link farm, suggests a phishing or malware distribution campaign. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic specifically highlights the suspicious nature of these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6383

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
  • 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://giritrademark.com/content_files/files/5335108328.pdf In PDF document text
    • http://shanghaicruiseparty.com/uploads/file/taduxodutujosi.pdfIn PDF document text
    • http://dreambeauty.kr/upload/fckeditor/file/61817780758.pdfIn PDF document text
    • http://xn--49s538bo8ux8c.net/userfiles/file/12030192112.pdfIn PDF document text
    • http://erbaytag.com/resimler/files/koziva.pdfIn PDF document text
    • http://artiguardia.pl/userfiles/file/94412142461.pdfIn PDF document text
    • http://www.mustwalge.ee/data/content/files/65988479794.pdfIn PDF document text
    • https://ecoquimica.cl/dinamicos/uploads/file/60282417272.pdfIn PDF document text
    • http://agarimo.com/archivos/archivos/vinizatalometodudupisuvi.pdfIn PDF document text
    • https://hediyelikhanem.com/calisma2/files/uploads/kijinowawat.pdfIn PDF document text
    • https://cs-nippon-cp.com/mailmagazine/upload/files/livusawatomo.pdfIn PDF document text
    • http://photonart.nl/phpcmsys/file/posogirerakexu.pdfIn PDF document text
    • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16132112e32109---75381663012.pdfIn PDF document text
    • http://redondoclassicburger.com/uploads/files/mopiboxawe.pdfIn PDF document text
    • http://nail-free.com/ckfinder/userfiles/files/97970376254.pdfIn PDF document text
    • http://jinruily.com/UploadFile/file/20210913075832351.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613427ef96b83---vepamimoj.pdfIn PDF document text
    • http://atthaya.com/file_media/file_image/file/73898356416.pdfIn PDF document text
    • https://shatalarab-llc.net/userfiles/files/rapanojototutikozuwasajev.pdfIn PDF document text
    • https://heatingboiler.ca/fck_upload/file/63192740978.pdfIn PDF document text
    • http://kuresi-kaitori.com/upload/content_pic/files/narikapafanosutupazi.pdfIn PDF document text
    • http://natalieshuff.com/uploads/file/gepaluselevusadowidetigo.pdfIn PDF document text
    • https://emtracing.net/userfiles/file/46980226182.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=demon+slayer+movie+sitePDF link annotation