Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b06d2cfb965b99f…

MALICIOUS

PDF

47.6 KB Created: 2021-09-18 10:32:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 107dba4e60bd2fda590963447f000ef8 SHA-1: 278fd5c29f2d10ee4fc5c1e3df5c07d7ceebbafb SHA-256: 7b06d2cfb965b99f094b92e401bf6173ea0f73aa3c99a9c83b96d60727bd4dce
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file was flagged by ML classifiers and ClamAV as a phishing trojan. It contains numerous links to external PDFs hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of multiple PDF_URI heuristics and the ML_NYX_PDF_MALICIOUS firing strongly indicate a malicious intent to exploit users through deceptive links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7102

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://lentes123.com/aym_image/files/wufexosizefiketutovekal.pdf In PDF document text
    • http://peoplefoster.com/pliki/18762056122.pdfIn PDF document text
    • http://isvpro.com/custom/files/92825963995.pdfIn PDF document text
    • http://www.offshoreyachts.net/web_upload/editor/files/15436292313.pdfIn PDF document text
    • http://restaurant-lyons.fr/userfiles/file/kufifatunus.pdfIn PDF document text
    • http://www.dilipprabhavalkar.com/images/file/58729269121.pdfIn PDF document text
    • http://generale-bureautique.fr/gdb/files/file/vavavugadori.pdfIn PDF document text
    • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132eeff169cc---94849324066.pdfIn PDF document text
    • https://fenixfalt.com/userfiles/file/99696276144.pdfIn PDF document text
    • http://inbjnews.com/data/cheditor/0603/files/sawogevi.pdfIn PDF document text
    • https://pasarant0g3l-turbo-h1t.com/contents/files/35523988104.pdfIn PDF document text
    • https://bozoklar.org/ckfinder/userfiles/files/xikozu.pdfIn PDF document text
    • http://we2meeting.com/ckfinder/userfiles/publics/files/17432665522.pdfIn PDF document text
    • http://hycxchina.com/filespath/files/20210906154242.pdfIn PDF document text
    • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/161392b28ed1ca---86243371368.pdfIn PDF document text
    • http://www.tomasjelinek.com/img/pub/file/bagitup.pdfIn PDF document text
    • http://asbazainville.org/userfiles/file/30165903389.pdfIn PDF document text
    • http://www.likoda.com.tw/upload/ckimg/files/gepowanepokanufetiv.pdfIn PDF document text
    • https://dveropolis.ru/upload_picture/woxisazukafabikakezenim.pdfIn PDF document text
    • http://saatgaamkansarasamaj.com/admin/uploads/files/dixikiwuzesumena.pdfIn PDF document text
    • https://debcopharma.com/userfiles/file/pazejulobawukikudavaz.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=fall+guys+mobile+android+apk+downloadPDF link annotation