Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bf73bfe0919e16c…

MALICIOUS

PDF

77.9 KB Created: 2021-07-14 10:16:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 562169a17de30b9ce9019cb7d3e03225 SHA-1: 00200a37dacfa44a309d6628f998a1ef112957d3 SHA-256: 2bf73bfe0919e16c49094f320a0392899a39ecf3a3db2b94e14d069a350cc587
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs that point to various websites, many of which appear to be compromised or disposable hosting. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and embedded links are characteristic of a malicious link farm designed to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7917

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://smidgel.ru/uplcv?utm_term=common+latin+roots+used+in+english PDF link annotation
    • http://sharidyer.com/clients/863431/File/zotiwogibeliner.pdfIn PDF document text
    • http://www.kilincsweb.hu/fileok/file/risotipoxanow.pdfIn PDF document text
    • http://srihemkuntsahibfgp.org/hemkunt/userfiles/file/vebovefodovisurabugibuli.pdfIn PDF document text
    • http://jar-ted.pl/file/70724426958.pdfIn PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160771a1f81741---danisujirutiji.pdfIn PDF document text
    • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/i9u90teuml6s827r97834u5u43/bafikuzaposanaxapuneg.pdfIn PDF document text
    • http://sovaimm.it/userfiles/files/77512819278.pdfIn PDF document text
    • http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d84bba7f822---96617228394.pdfIn PDF document text
    • https://detectiveoffice.net/userfiles/file/67807696024.pdfIn PDF document text
    • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/c85gb8lpa6b3cp9eng3sjl58ip/xizigalipawuwonu.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160807fd61bc37---72708660284.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.