Malicious PDF — malware analysis report

Static analysis result for SHA-256 08b99b67dd4c3ae1…

MALICIOUS

PDF

54.0 KB Created: 2021-07-18 09:53:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: ec33bf50b7e87d24c993b2ccb3d080a8 SHA-1: ce6ef079cbb94f1900b2f95463fd0e5d1322076b SHA-256: 08b99b67dd4c3ae146c85c008fa790ae7b4a3f92ee729d8c4c44a34162d2e130
124 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to compromised websites. The ClamAV detection indicates this is a known phishing or trojan variant. The primary function appears to be directing users to malicious or compromised external resources, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4912

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 http://universalgroupautos.com/files/others/71858109865.pdf In PDF document text
    • https://panama4d.com/contents//files/68783190418.pdfIn PDF document text
    • https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160bdfe52f36a1---radigakusujodez.pdfIn PDF document text
    • http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/a8977aebboitdirpoirk97g2k2/96016810856.pdfIn PDF document text
    • http://xn--l3cbpp3gh4a5g5c.com/userfiles/files/17176464974.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073b6e4b4f01---30335222971.pdfIn PDF document text
    • http://funperm.ru/content/file/tofev.pdfIn PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160733bed4a320---31800123810.pdfIn PDF document text
    • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/p728kqo9gkq0umitk18q9kinei/gevidokugotejefu.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160940333c6084---jigowozomimapa.pdfIn PDF document text
    • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083b83e9d5fc---selejuganerobos.pdfIn PDF document text
    • http://camberwelltaxi.com/survey/userfiles/files/pebaromazofapupobo.pdfIn PDF document text
    • https://internationalmedia.com/userfiles/file/jifakolen.pdfIn PDF document text
    • http://wolfroccatiassociati.it/userfiles/files/76966441944.pdfIn PDF document text
    • http://koslita.eu/ckfinder/userfiles/files/bopemibilusomo.pdfIn PDF document text
    • http://studio-castiglioni.com/userfiles/files/fomagabatukefejamesufa.pdfIn PDF document text
    • http://energo-winstal.pl/userfiles/file/gitizanetadusemopakit.pdfIn PDF document text
    • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609d1eb4a0831---84915231182.pdfIn PDF document text
    • https://yingzhaoliuart.com/upload/file/67563389487.pdfIn PDF document text
    • https://klcmekatronik.com/ckfinder/userfiles/files/pagufewirudugalepi.pdfIn PDF document text
    • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/oj4j5jps856nnfucbued5v8ec1/pukaxakuwaxowiwufafavudo.pdfIn PDF document text
    • http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/160996edb58170---tobofuwiwulokivibozi.pdfIn PDF document text
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/351888863aa57c0cc55670e13a24e952/79744845914.pdfIn PDF document text
    • http://yomamasushitogo.com/uploads/files/tumikefufiragitima.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=pokemon+pearl+first+gymPDF link annotation

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