Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a75ee6e2aee1581…

MALICIOUS

PDF

41.6 KB Created: 2021-10-02 18:49:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 990fbc127d82fc17b4732ec556aa8532 SHA-1: 8a05695d2db0ae2ca76e543dcbbb610b5eb8125c SHA-256: 9a75ee6e2aee15812bb3ec3e9341156910db177761eca476ab5ffa92585d6d3d
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF file flagged by multiple heuristics and a machine learning classifier as malicious. It contains numerous embedded URLs pointing to various domains, suggesting a link farm or redirection mechanism. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature, likely intended to lead users to phishing sites or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8695

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://alquimia.in/admin/fckeditor/editorfile/venevalowiladalizodosa.pdf In PDF document text
    • http://benetalent.com/upload/files/fukafof.pdfIn PDF document text
    • https://ratsimae.ee/media/contents/file/vufironifaburebotumiba.pdfIn PDF document text
    • http://sbnjl.com/userfiles/files/44558998552.pdfIn PDF document text
    • http://homeopathyhk.com/files/78289917478.pdfIn PDF document text
    • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613268dfca943---xipasesuju.pdfIn PDF document text
    • http://xinyuemu.net/assets/202109/files/20210907115931918514.pdfIn PDF document text
    • https://www.padanguparduotuve.lt/ckfinder/userfiles/files/46712038270.pdfIn PDF document text
    • http://malopolskiszlakwinny.pl/upload/File/46379227081.pdfIn PDF document text
    • http://jubileejec.com/userfiles/files/widobotuxukobexisemabiwo.pdfIn PDF document text
    • https://kenadong.com/contents/files/godinikefiroruwu.pdfIn PDF document text
    • http://shengnabei.com/uploadfile/file///2021091116013111.pdfIn PDF document text
    • https://oxi-dental.ro/imagini_ws/7781870626.pdfIn PDF document text
    • http://chukysovin.com/img-svc/files/bazevu.pdfIn PDF document text
    • https://santa.my/images/users/00000000/files/56560458670.pdfIn PDF document text
    • http://rileyillustration.com/images/agency/files/76095743929.pdfIn PDF document text
    • https://4wheelchile.cl/admin/uploads/file/16527474573.pdfIn PDF document text
    • http://www.toptehnik.si/images/nupaxetekuzupabimujewi.pdfIn PDF document text
    • http://hodoan.net/userfiles/file/fiwobaduwokufujowirola.pdfIn PDF document text
    • https://masterpieIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=bien+dit+french+1+answersPDF link annotation

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