Malicious PDF — malware analysis report

Static analysis result for SHA-256 a30240e8be4efe46…

MALICIOUS

PDF

52.6 KB Created: 2021-09-12 02:49:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 18517ff8a0b0402b0eb72232a52a76bd SHA-1: db29f793691d0d38dbab8e9216926e5a2ba1e1c0 SHA-256: a30240e8be4efe46f26fd5368ebcac8b4151b273e2e95ba587e99231b5c54772
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external URIs and is flagged as a link farm on disposable hosting, suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier further indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the overall structure point towards a malicious document designed to trick users into visiting potentially harmful sites or downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6791

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://coretry.ru/uplcv?utm_term=burner+phone+apk PDF link annotation
    • http://intertravel.hu/_user/file/jowogi.pdfIn PDF document text
    • https://kccegis.com/upfiles/content/file/20210911144656.pdfIn PDF document text
    • http://dylogistics.com/userData/board/file/tizipobajibateduvisasetob.pdfIn PDF document text
    • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/161349203543fe---tafolovaxoxifiriloro.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/161319ed47b79c---13240665893.pdfIn PDF document text
    • http://kangshi-you.com/uploads/files/202109120652358553.pdfIn PDF document text
    • http://grapes4u.ca/sites/all/sites/grapes4u.ca/files/pomepobuvigaverikuturumu.pdfIn PDF document text
    • http://yourbuilding.ru/userfiles/files/ludedorosiwubuduxejo.pdfIn PDF document text
    • https://sunkamalzemecilik.com/userfiles/file/35504098275.pdfIn PDF document text
    • https://sensiblemachines.com/ckfinder/core/connector/php/files/44411103340.pdfIn PDF document text
    • http://pevak.info/UserFiles/File/10931612502.pdfIn PDF document text
    • https://specializedfacilitymgt.com/public_html/userfiles/file/naxub.pdfIn PDF document text
    • https://burstallconrad.com/editor_files/file/17020915509.pdfIn PDF document text
    • http://abpjseah.news-read.com/upload/files/gitudumanodevipuro.pdfIn PDF document text
    • http://xn--80ab1a9a.xn--p1ai/sadm_files/xukuniwozikusire.pdfIn PDF document text
    • https://dom-titan.rs/files/banuwefananevabijipajulim.pdfIn PDF document text
    • https://aucordechasse.fr/vosImages/75562967202.pdfIn PDF document text
    • http://lachambredechos.com/userfiles/file/86678987069.pdfIn PDF document text
    • http://www.electricman.in/demo/frontend/web/uploads/files/34357299856.pdfIn PDF document text
    • https://globaldreamindia.com/webcms/file/rezoboruvu.pdfIn PDF document text
    • http://ebd.su/UFD/7623/files/77307188324.pdfIn PDF document text
    • http://spakimthi.com/upload/files/45380958419.pdfIn PDF document text
    • http://mtcongnghiepxanh.com/upload/fckimagesfile/zawuram.pdfIn PDF document text
    • http://2478.ru/admin/ckfinder/userfiles/files/88395497627.pdfIn PDF document text
    • http://www.biosafety.biz/ckfinder/userfiles/files/bafikorififad.pdfIn PDF document text