Malicious PDF — malware analysis report

Static analysis result for SHA-256 58ece790bd08cafc…

MALICIOUS

PDF

54.7 KB Created: 2021-09-17 22:11:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 2d2de018298ea9440c7fe55c1576a5a0 SHA-1: 07fe9585aa19470c2cf4259c5357ee763dfbe9f3 SHA-256: 58ece790bd08cafcfb8cd68f053195e9344ce2fe89f00d83e8270ae2911d5f2f
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and exhibits characteristics of a phishing or malware distribution lure. It contains embedded JavaScript and a significant number of external links, many of which point to potentially compromised WordPress sites acting as a link farm. The embedded JavaScript likely facilitates the redirection or further malicious actions.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2918

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/161359022b953e---pobuzibamavalo.pdf In PDF document text
    • http://auto-rad.pl/userfiles/file/ruveripi.pdfIn PDF document text
    • https://kotypsy.pl/ckfinder/userfiles/files/54547986208.pdfIn PDF document text
    • http://yuanhebiotech.com/upload/files/27134781374.pdfIn PDF document text
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/a5b2ef5c8a2530ac340bfe75fb227234/gizigosaz.pdfIn PDF document text
    • http://xhzhengli.com/upload/pumumuvugapifofumasemisuv.pdfIn PDF document text
    • https://rugerwafers.com/demo/ruger/beta/userfiles/files/kamikotuwumefapuwaneb.pdfIn PDF document text
    • https://laetitiabernard.fr/images/file/godabofiloxeji.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a817ba3180---66997673332.pdfIn PDF document text
    • http://brilsports.ro/userfiles/file///12681289648.pdfIn PDF document text
    • http://jeyadhurgatemple.com/userfiles/file/sawid.pdfIn PDF document text
    • http://tipkeo.com/js/ckfinder/userfiles/files/sexavemixowenujazanem.pdfIn PDF document text
    • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/76c9e8e7c8412ddd0004ff27286ee7db/64987545685.pdfIn PDF document text
    • https://www.truck-transport.com/ckfinder/userfiles/files/52881627191.pdfIn PDF document text
    • https://giridhareye.org/ckfinder/userfiles/files/86305374331.pdfIn PDF document text
    • http://relaxzenter.com/uploads/files/19644845440.pdfIn PDF document text
    • https://aviseco.ro/userfiles/file/pubudasaxasukorivepozafen.pdfIn PDF document text
    • http://mathrainbow.com/userfiles/file/74281534989.pdfIn PDF document text
    • http://scsytech.com/upload/files/95228542116.pdfIn PDF document text
    • http://sissonne.hu/editor_up/53568757350.pdfIn PDF document text
    • https://eko-briketes.lv/userfiles/files/fukajozitobaf.pdfIn PDF document text
    • http://tverzhilservis.ru/foktver.ru/ckfinder/userfiles/files/fagevifurozosuvuxovuvavol.pdfIn PDF document text
    • https://perfectprojects.ro/userfiles/file/xolij.pdfIn PDF document text
    • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/195b96d8024a368affd79e7c678c6707/nuzuj.pdfIn PDF document text
    • http://gddfboiler.com/uploads/files/loduxidojodavu.pdfIn PDF document text
    • https://tannhatviet.vn/upload/files/dezexorabevikixirevakomes.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=mlb+live+stream+vipboxPDF link annotation

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