Malicious PDF — malware analysis report

Static analysis result for SHA-256 7048d7bd990803dd…

MALICIOUS

PDF

69.3 KB Created: 2021-07-17 22:30:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 02b6264a1bf44c9034cee7f444c02992 SHA-1: 88151446633b104beecd38ff8e4a439fe5a58330 SHA-256: 7048d7bd990803ddd6349439cb0a5ff00e94cf701ea5f235cb37ffcf4b5026a1
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is identified as a PDF containing a link farm, with multiple URLs pointing to compromised WordPress sites and disposable hosting. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The embedded URLs suggest an attempt to redirect users to phishing or malware hosting sites, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4988

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://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/2b1ae4b87f14ca0773c2764e7023f8e7/molibafisofexepaborabonap.pdf In PDF document text
    • https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/e8f7a2beaa55f2f8038ef7150d22fc20/3835600103.pdfIn PDF document text
    • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/857e49b3f0b56ae41cf7e21d25f5e8fb/nunozewivenerujizaw.pdfIn PDF document text
    • https://activepymes.com/pub/file/82997018408.pdfIn PDF document text
    • http://hysansam.com/fckeditor/userfiles/image/wuvig.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acab220cac9---datoruteru.pdfIn PDF document text
    • http://sl-light.ru/design/img/upload/file/48342275135.pdfIn PDF document text
    • http://kojeneckezbozi.eu/userfiles/file/6045084786.pdfIn PDF document text
    • http://fusheng-vietnam.vn/admin/webroot/upload/image/files/dotepegisunoziguxis.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4754ee089c---79662901385.pdfIn PDF document text
    • https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/b65d6db248fc33dfe731ac7ffad4b820/29499430032.pdfIn PDF document text
    • https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/c5240dee22f07d39f84049f59cb8e8b8/38144318369.pdfIn PDF document text
    • http://www.allatpatikapecs.hu/images/file/96265317947.pdfIn PDF document text
    • https://bearings.vn/images/ckeditor/files/45389903405.pdfIn PDF document text
    • http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/1102622228.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b738b843f89---lafibuwokej.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/s1gva1fqset0m9159gf5gbfgo0/rifefibunafojixek.pdfIn PDF document text
    • https://thaiahpa.com/flash/files/segejebosutavosuvi.pdfIn PDF document text
    • http://sicompk.com/survey/userfiles/files/80470726744.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/895e0e5da34bb4ded0244f43b170684f/fiwodanilawerutori.pdfIn PDF document text
    • https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d60a9cc05b---42110775342.pdfIn PDF document text
    • https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/ro9gfio0pskck3nr0vicqkp1v6/27168414683.pdfIn PDF document text
    • https://malabarmail.com/ckfinder/userfiles/files/vonopelofafiforowovib.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=paste+your+face+on+another+picturePDF link annotation