Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d244aabb45932f2…

MALICIOUS

PDF

79.8 KB Created: 2021-07-13 18:58:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 6b266bc6315321b86df36fcbc06cb519 SHA-1: 93f5067cdbed5288135df02591a944944b2fbc41 SHA-256: 4d244aabb45932f22caa4e15c77ffc605336c9a63764e4eda5de076b83bef266
174 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and flagged by an ML classifier. It contains numerous external URIs, including one pointing to a raw IP address and others hosted on compromised WordPress sites, forming a link farm. These links likely serve as lures to download further malicious content or phish for information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5616

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/vl6vqmubu5gjl58l928cn7luai/guvamomemipuk.pdf In PDF document text
    • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160870d12668bb---godororun.pdfIn PDF document text
    • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/8h7gk4s0uq7an6u1ba9hg8jn03/34412393743.pdfIn PDF document text
    • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096eb4a60f12---wofafopapadaso.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607c402384380---78473460263.pdfIn PDF document text
    • http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/661bcc951882254f5c71de9c8eec040c/lafuru.pdfIn PDF document text
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/28fb2cb1fadcfd640a0a170e6fcaa546/21086551957.pdfIn PDF document text
    • https://kawanmto.info/contents//files/61068247976.pdfIn PDF document text
    • http://glenbrooksouth1970.com/clients/1/17/17fc1bd13d5538a69f39d58c869d2fc5/File/sexoxevifulatirizaxotob.pdfIn PDF document text
    • http://emannsltd.com/userfiles/lidekimadalunixemopi.pdfIn PDF document text
    • https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/95d4261fa80cf571f2c79d45955dabad/18574187008.pdfIn PDF document text
    • https://sieuviet.net/webroot/img/files/lijodisuz.pdfIn PDF document text
    • http://157.230.241.115/image/upload/File/52969735292.pdfPDF link annotation
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160821f5c51db5---7968173346.pdfIn PDF document text
    • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5cc9d5488---66403050815.pdfIn PDF document text
    • https://rotherelectric.com/files/luninolotu.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/160749ad22f851---43434349234.pdfIn PDF document text
    • http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160e2a373eec22---71869437433.pdfIn PDF document text
    • https://www.synergyheart2heart.team/wp-content/plugins/super-forms/uploads/php/files/mts78ceuqm1uscl9b1b7hicne5/34821496861.pdfIn PDF document text
    • http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1608c5db0c3cda---54906518595.pdfIn PDF document text
    • http://alibabashipping.com/userfiles/file/25190051507.pdfIn PDF document text
    • https://idd.no/ckfinder/userfiles/files/81090311738.pdfIn PDF document text
    • https://rinducm1.com/contents//files/88929370535.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=non+binary+without+dysphoriaPDF link annotation

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