Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a6fc7b455a59332…

MALICIOUS

PDF

117.9 KB Created: 2021-07-07 04:29:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 7560b1c29e3f7c965693babfc6269873 SHA-1: 77d54ab1330849e6af1381b46a0e2093fcb1a5ba SHA-256: 4a6fc7b455a59332ecce8990ca90fa42af8a9148c30cdddf183e9b5eea2d2f36
124 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by ClamAV. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some of which are hosted on compromised CMS platforms. The embedded URLs suggest an attempt to distribute malicious content or conduct phishing operations.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3929

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://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608606ea4304b---simomipi.pdf In PDF document text
    • http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/fobov.pdfIn PDF document text
    • http://gtshotel.it/images/file/38714317315.pdfIn PDF document text
    • https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/8a3ece7b5572817c7d8c4dcb0b5f2af9/52386852939.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160a12a8f24026---16930736981.pdfIn PDF document text
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/16094dcbef071a---65967458292.pdfIn PDF document text
    • https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/16077e9974b85d---76758844769.pdfIn PDF document text
    • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/de42108c9b0f93bfeaa9dd80d9bbe1bc/tizevaxofajojujamukokuxu.pdfIn PDF document text
    • http://aircond.md/upload_fck/file/mitavukizilej.pdfIn PDF document text
    • https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/sapc2bjhrkehpuaa32crlo74fd/38732061880.pdfIn PDF document text
    • http://normel.org/files/upload/file/zoruxibunesulukixenof.pdfIn PDF document text
    • http://podiummoda.ru/userfiles/file/15833234134.pdfIn PDF document text
    • https://ladangmimpi.com/contents//files/nerosesel.pdfIn PDF document text
    • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16075137349423---koruseje.pdfIn PDF document text
    • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160980a154c5fc---23174614615.pdfIn PDF document text
    • https://master-service.ro/images/file/5627243988.pdfIn PDF document text
    • http://apcmagon.com/userfiles/13009074563.pdfIn PDF document text
    • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160766f1f0eae2---pexigawipaji.pdfIn PDF document text
    • https://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/9fd8534f20412830443fc25b79a5af26/9353040146.pdfIn PDF document text
    • http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a6273413ad4---19117655303.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/ee81c46d23ce714e1419c3864b014e36/niwezisigipubolo.pdfIn PDF document text
    • http://artecgroupservices.com/imagenes/file/diluxagos.pdfIn PDF document text
    • https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/481d83e9431964eae8533769b5a4fe13/13665924028.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=repent+for+the+kingdom+is+nearPDF link annotation

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