Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad6da4ec51f3de48…

MALICIOUS

PDF

56.8 KB Created: 2021-06-25 22:22:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 3d07457672be3f7ad4311fd2b001c390 SHA-1: 0e506a139f0e47ebe5bcdbd62aec430fe6e1798a SHA-256: ad6da4ec51f3de48bbf1b0a6a93cb9c0f5bbffe31d4db8aea0e7e726d376c104
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file was detected by ClamAV as Pdf.Phishing.Trojan. It contains numerous embedded URLs that point to compromised CMS uploads and disposable hosting, indicating a link farm designed to redirect users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggest this malicious intent.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2755

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://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160771b68a3e11---40085999701.pdf In PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b2fa54d80a---boridesukizorivokajovu.pdfIn PDF document text
    • http://www.lebedosapartotel.com/data/yukle/files/lujosojokokimajob.pdfIn PDF document text
    • http://afghansolar.com/userfiles/file/vexapewidixo.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/587bc5ed481215d509b5fab43907be8a/37874750422.pdfIn PDF document text
    • http://fullcolorspandoeken.nl/userfiles/file/49029111838.pdfIn PDF document text
    • http://ghalemdi.com/userfiles/file/73578857343.pdfIn PDF document text
    • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098a7119da81---sewejeg.pdfIn PDF document text
    • http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160845abeef840---rosovad.pdfIn PDF document text
    • http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c8e3f59a34---sedewezuxegasesiz.pdfIn PDF document text
    • https://faresaldabbous.com/uploads/files/ruzeguku.pdfIn PDF document text
    • http://cristal-in.fr/userfiles/file/wosogededor.pdfIn PDF document text
    • https://jagominum.com/contents//files/fiwilevaf.pdfIn PDF document text
    • http://monktonlionsclubkidscamp.com/clients/9/99/99b8b5517e5fb663501b7ee5137ebf55/File/17741364633.pdfIn PDF document text
    • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/748d7057d2ced31245df74628e1ca47a/28646681357.pdfIn PDF document text
    • http://askort.pl/Upload/file/14645240934.pdfIn PDF document text
    • https://evergreencans.com/userfiles/file/famovuredinokuketidogefe.pdfIn PDF document text
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d797e6adbc---16460344323.pdfIn PDF document text
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077986dbf8b7---fumilelunek.pdfIn PDF document text
    • https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/1a6cce220f5c6809d0742a361f20ea2e/41057000633.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160940990abeae---dozasadur.pdfIn PDF document text
    • https://autoradiator.mn/uploads/ckfinder/files/65071110140.pdfIn PDF document text
    • http://richmore.kr/uploadfile/fckeditor/file/gobokoxeludebasefogimox.pdfIn PDF document text
    • https://elitteaccesorios.com/wp-content/plugins/super-forms/uploads/php/files/in125qai5gi81rbektnui83uo0/13364441675.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/1606c87198dbd8---todepewubujuvirusijipuzes.pdfIn PDF document text
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a96a3d344a3---dosofiwujegazojofupu.pdfIn PDF document text
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607da671e7553---wikosezi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=11+hp+to+ccPDF link annotation

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