Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec5e6af08db7a30b…

MALICIOUS

PDF

48.0 KB Created: 2021-09-27 12:36:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: a929614278a3b370c74426b7fdbcd717 SHA-1: 83b4002562ff57bcd964af1737af389aa3da25c8 SHA-256: ec5e6af08db7a30b331a7285c5e4d371b3e731988bea9c45d4ca686c2e3216cf
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to external websites, many of which are hosted on disposable domains or appear to be link farms. Heuristics indicate this PDF is a link farm and is flagged as malicious by ML and ClamAV. The presence of external URIs suggests the PDF is intended to redirect the user to malicious content, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6578

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://allytemp.ru/uplcv?utm_term=smurf+village+apk PDF link annotation
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    • https://dom4m.by/userfiles/files/pexetubew.pdfIn PDF document text
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    • https://chulintemple.house-well.com/CKEdit/upload/files/makarit.pdfIn PDF document text
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1614266b3ecb5c---89706091980.pdfIn PDF document text
    • https://chorland-dining.com/webroot/editor-uploads/files/53600388270.pdfIn PDF document text
    • http://cupta.org/userfiles/files/20210909110410.pdfIn PDF document text
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/a41f6979a6cffb332620cb0ad9e52d17/27292941407.pdfIn PDF document text
    • http://feuerwehr-mittenwalde.de/mediathek/files/gunopane.pdfIn PDF document text
    • http://macautemple.com/userfiles/file/sobajulomidifazuw.pdfIn PDF document text
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    • https://vipbeachhouse.com/uploads/editor/file/losepo.pdfIn PDF document text
    • https://dentalrud.com/userfiles/file/22280726894.pdfIn PDF document text
    • https://bbpartner.cz/userfiles/file/90824601925.pdfIn PDF document text
    • https://highlander-inn.com/assets/userfiles/files/86926966695.pdfIn PDF document text
    • http://njxinbell.com/upload/files/bidezeg.pdfIn PDF document text
    • https://hattoco.vn/images/ckeditor/files/95542025258.pdfIn PDF document text
    • https://granitnet.hu/editor_up/16090443255.pdfIn PDF document text
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    • https://icrs-as.com/userfiles/file/40148655972.pdfIn PDF document text
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    • https://cuisinescartier.ca/upload/editor/file/48365091572.pdfIn PDF document text