Malicious PDF — malware analysis report

Static analysis result for SHA-256 72cd7f4ab3ab6a85…

MALICIOUS

PDF

55.4 KB Created: 2021-06-26 16:45:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: d948ec56a56ab1babb3d61d49dcac78d SHA-1: dc60aaf308032f62bec7282966ddd202f8e96772 SHA-256: 72cd7f4ab3ab6a853fb61225d97de3d7ccab2424853e89b0f85269fde4d5798a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs pointing to compromised WordPress upload directories. These links likely lead to further malicious content or phishing pages, aiming to trick users into downloading or interacting with harmful files. The presence of multiple distinct hosts and the use of disposable hosting reinforce the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5455

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://beautybybelief.com/admin/images/file/dipusivisunukozu.pdf In PDF document text
    • https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/d0a29f202327d907a6bc5788e48db44a/92828939371.pdfIn PDF document text
    • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4cd200015---1041949793.pdfIn PDF document text
    • https://nikosdimos.gr/userfiles/file/95290434234.pdfIn PDF document text
    • https://manuscripthandler.com/userfiles/file/pudubawugomowowamitimeni.pdfIn PDF document text
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/1126e8d54cde3e8811d0dd174cf7be93/55009496614.pdfIn PDF document text
    • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/99a3ba2a997918a07ccbf186c31bc42a/fonawutovo.pdfIn PDF document text
    • http://arcomproltd.com/userfiles/file/wamor.pdfIn PDF document text
    • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/9b7857b75a7a46605ad091ed6009c059/wobadijuku.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5e896eae47---jelexegulabadewariwifak.pdfIn PDF document text
    • http://iqlacpro.vn/emotive/upload/files/42755846587.pdfIn PDF document text
    • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/6c661da1a77620d468e8463af116fec0/21812734445.pdfIn PDF document text
    • https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/tokmqee4o1u8mkja5q6rbmc5nr/32773334032.pdfIn PDF document text
    • http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/misobaw.pdfIn PDF document text
    • https://narimasu-chintai.net/jcfiles/file/fujazudumek.pdfIn PDF document text
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/d4b138a6f877e511a7c55367f7aef5b8/zuwujezi.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a565a072009---64156366108.pdfIn PDF document text
    • https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/0978485cd9693776d4ccdc6b00b4f95b/febuwetivadusunoguzomuzaj.pdfIn PDF document text
    • http://akkoryazilim.com/userfiles/file/muturuwajafarudo.pdfIn PDF document text
    • https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/898f94cfa7ed99238b6f2870a26a1d3c/joxivemoxojolibidigul.pdfIn PDF document text
    • http://ji-tien.com/userfiles/file/86497644476.pdfIn PDF document text
    • http://lso-msm.fr/userfiles/file/18763444049.pdfIn PDF document text
    • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609649e47c88f---povalafutusuregudobat.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=affirmative+sentence+in+englishPDF link annotation

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