Malicious PDF — malware analysis report

Static analysis result for SHA-256 17aedb95a040c448…

MALICIOUS

PDF

44.6 KB Created: 2021-09-29 05:28:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 8d35ba571bfbc5763a9b45723282bce2 SHA-1: e573725a3ad17d2e8bcfb1183ba104dc4784b7b9 SHA-256: 17aedb95a040c448b88660c3872bd1e08fd6de6bb7f3cdd43ca2a8d374b35ee5
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to external domains, characteristic of a link farm used to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and URL patterns suggest it is designed to lure users to potentially harmful websites, likely as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7355

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://krisoc.ru/uplcv?utm_term=app+planet+apk PDF link annotation
    • https://yumasri.com/assets/ckfinder/userfiles/files/kelifasowefofo.pdfIn PDF document text
    • https://defi128.phpascal.com/userfiles/files/juxirewopodok.pdfIn PDF document text
    • http://1-sanya.com/blog_images/blog_/file/29513839809.pdfIn PDF document text
    • http://446888.top/userfiles/file/7886323183.pdfIn PDF document text
    • https://pellevah.com/upload/files/lazinopilasikuwavaretadi.pdfIn PDF document text
    • https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/12a398ba856bad57a66902530604aa2b/kudom.pdfIn PDF document text
    • http://ikkosushi.com/uploads/files/kegomesikore.pdfIn PDF document text
    • http://php-lounge.de/userfiles/file/10105502027.pdfIn PDF document text
    • http://webcertain.net/contentupload/fckeditorUploads/organization_/file/89545594018.pdfIn PDF document text
    • http://karpatskiles.ru/store/files/lefajineriliwavo.pdfIn PDF document text
    • https://www.bbmnetlicitacoes.com.br/cms/ckfinder/upload/files/12213374539.pdfIn PDF document text
    • http://castel.lu/userfiles/files/94424113884.pdfIn PDF document text
    • http://langyupharm.com/upload/files/51805828731.pdfIn PDF document text
    • http://hotelbasantresidency.com/uploads/dixefi.pdfIn PDF document text
    • http://terralis.net/catalogue_dynamique/file/mokusajimaboru.pdfIn PDF document text
    • https://kpii3yaw3-7nc.com/contents/files/fakukibezitokokixuro.pdfIn PDF document text
    • http://trlgpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/85985083185.pdfIn PDF document text
    • https://derfo.info/resimler/files/tomezitegakoxuz.pdfIn PDF document text
    • https://signika.pl/Upload/file/79007843707.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137c2328e5fc---gagukamew.pdfIn PDF document text
    • https://www.netcorp.hu/data/editorfile/jelixumumajozu.pdfIn PDF document text
    • http://bilafafafa.com/shopadmin/upload/files/43716323320.pdfIn PDF document text
    • http://www.sas.edu.mn/ckfinder/userfiles/files/tumon.pdfIn PDF document text
    • http://torby.kbo.pl/ckfinder/userfiles/files/38940589396.pdfIn PDF document text
    • http://mbjarrahi.com/UploadedFiles/New/file/89302731867.pdfIn PDF document text