Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ba35444b4c4a8b0…

MALICIOUS

PDF

64.0 KB Created: 2021-10-06 20:19:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 00896b7aea01deed5f5f38d9d9c6aec7 SHA-1: baebc92c74041890a332fe1ca6768f6dfee6eaea SHA-256: 7ba35444b4c4a8b08fd12c4dbb740f2e55120d7ae41b98f7b452738715351d35
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which are associated with link farms and disposable hosting, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it is designed to redirect users to malicious sites, potentially for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7267

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 http://medi-sen.com/files/files/18464119382.pdf In PDF document text
    • https://skvely-kup.cz/files/file/vikotugesizovilusilosa.pdfIn PDF document text
    • http://hoangnamjsc.com/upload/files/28141160561.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1614080f8de068---pupizotiw.pdfIn PDF document text
    • http://dichvumucin.com/upload/ckupload/files/47096054171.pdfIn PDF document text
    • http://gpmpoolandspa.com/ckfinder/userfiles/files/xufonemonuxazususatosowa.pdfIn PDF document text
    • http://studioiulianella.it/userfiles/files/nojevilum.pdfIn PDF document text
    • https://trompis-tondschungel.de/userfiles/file/52150099158.pdfIn PDF document text
    • http://www.pattyn360.com/upload/forum/files/88953102495.pdfIn PDF document text
    • https://unitytradecapital.com/ckfinder/userfiles/files/sugubil.pdfIn PDF document text
    • http://gps-ambroisie.com/ressource/site-image/files/mokoporigunesiro.pdfIn PDF document text
    • https://emenu.hu/editor_up/wurifedojagidiwanoko.pdfIn PDF document text
    • https://braus.uz/images/shared/file/8668781601.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/ba2l2pm6u9ri38r3dkmduaf1s7/jibixadokobelexirexifimo.pdfIn PDF document text
    • http://papaicountrylodge-longstay.com/user_img/files/97572996190.pdfIn PDF document text
    • https://adoz.cz/ckfinder/userfiles/files/bozatulapalifexunara.pdfIn PDF document text
    • http://thebankcardservice.com/uploads/files/katifovob.pdfIn PDF document text
    • http://agisma.ru/files/pages/files/fesivezes.pdfIn PDF document text
    • http://alfadent-volg.ru/images_uploads/files/82701046128.pdfIn PDF document text
    • https://valve-toho.com/userfiles/file/77103891433.pdfIn PDF document text
    • https://tlkingatlan.hu/kepek/other/file/69802594697.pdfIn PDF document text
    • https://yunglin.com/uploadpic/files/29189727457.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=1+mb+isPDF link annotation