Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a0ed6ba7b1bb1da…

MALICIOUS

PDF

46.8 KB Created: 2021-09-13 10:50:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 4423f37761485b2439e6d1e18d4d57d0 SHA-1: 2098e29dbc215198f246400324b6fe0008acda83 SHA-256: 6a0ed6ba7b1bb1da256db0fe5fd31f5e36bdd0b98ea9e939b67f7dbff2abd432
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm on disposable hosting, with numerous embedded URLs pointing to PDFs on various domains. The primary malicious URL identified is http://nuestratierrapremios.com/campannas/file/ririgenuzedodajuvux.pdf, which is part of a link farm designed to obscure the true destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7471

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://nuestratierrapremios.com/campannas/file/ririgenuzedodajuvux.pdf In PDF document text
    • https://selispin.com/calisma2/files/uploads/xesusadatalatefo.pdfIn PDF document text
    • http://arnoldbolingbroke.com/ckfinder/userfiles/files/gosomademer.pdfIn PDF document text
    • http://sm.ac.th/ckfinder/userfiles/files/xarebanonawoxujuwoje.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613b6f44a3ed0---wolowobufonabegofovowet.pdfIn PDF document text
    • http://jobsandhi.com/uploaded_files/userfiles/files/tefele.pdfIn PDF document text
    • http://mariekevanvlierden.nl/survey/userfiles/files/36980038618.pdfIn PDF document text
    • http://sumosushingrill.com/uploads/files/gimupasuxaresejovunotum.pdfIn PDF document text
    • https://www.colline-eternelle.com/ckfinder/userfiles/files/71968852717.pdfIn PDF document text
    • https://www.jdconstinc.com/ckfinder/userfiles/files/79003277304.pdfIn PDF document text
    • https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/161340a3665b83---96361698494.pdfIn PDF document text
    • http://heathrowairporttaxi.website/userfiles/file/58457404042.pdfIn PDF document text
    • https://xn--fct8ml6mwue.tw/uploads/files/wofijugufirotumitiwa.pdfIn PDF document text
    • http://xn--989ap7r0xbd5x.com/upload/fckeditor/file/papudijebiwovejezuwive.pdfIn PDF document text
    • http://0575zl.com/userfiles/file/37520445388.pdfIn PDF document text
    • http://shriadinathbank.com/uploads/3175571420.pdfIn PDF document text
    • http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/6555890697.pdfIn PDF document text
    • http://haliburtonhighlandsheritage.ca/userfiles/file/jabarilozigizogojufovoluk.pdfIn PDF document text
    • http://datong-travel.tw/upload/ckeditor/files/20210910190821.pdfIn PDF document text
    • http://hvpeds.com/upload/contents/file/59485187584.pdfIn PDF document text
    • http://synthecinter.com/userfiles/files/98574647803.pdfIn PDF document text
    • http://angelojrobles.com/admin_initial_test/userfiles/file/73030432319.pdfIn PDF document text
    • http://auswallendorf.de/userfiles/file/dedeburuwosasabunosa.pdfIn PDF document text
    • http://clairerolo.com/userfiles/file/4187810428.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=gun+3d+games+online+playPDF link annotation

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