Malicious PDF — malware analysis report

Static analysis result for SHA-256 757d9ab0a540d9ac…

MALICIOUS

PDF

70.7 KB Created: 2021-07-15 13:02:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 9403247a6d3261562fdbebc8350c3977 SHA-1: cae5b5cae07033bfe90fb91605f77cf981061756 SHA-256: 757d9ab0a540d9ac23553c63545041d7dc3bbbab9c14020df2f472fad4c47cdd
124 Risk Score

Malware Insights

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

The PDF file contains a link farm pointing to numerous websites, many of which are hosted on compromised CMS platforms. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The primary goal appears to be redirecting users through a series of links, likely for SEO manipulation or to lead them to phishing or malware distribution sites.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3494

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://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/394830cbf4eac5eb84f71258809327ce/gavepedudufuvaxipoje.pdf In PDF document text
    • http://d4sontario.ca/clients/e/ed/ed023a0734c265ca673a92d1d81de675/File/87179435094.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/4037575dce496cd0acd17b4352067452/mumowukagegaxa.pdfIn PDF document text
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/fbae15eddc49c94c667a2f94cf60cc0f/wepagopabodobijinixip.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/9h0gcha26jr93gbjgrcspsspt6/43965756721.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/160841b45adf5c---naten.pdfIn PDF document text
    • https://mayxaydungthienlong.com/uploads/files/files/lixagotufiwukawipefil.pdfIn PDF document text
    • http://bmhs71.com/clients/c/c9/c97ff408e01126d63256cf68004d6641/File/pobosuleg.pdfIn PDF document text
    • http://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076ce2dca5b8---pezogo.pdfIn PDF document text
    • https://paidionresearch.com/userfiles/files/gajekerej.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16096baebb5f0c---36948834143.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c136e402b8f---tofolagelanedamalese.pdfIn PDF document text
    • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/127dfc61c55e7ec3f9a0c00a25fed09b/defali.pdfIn PDF document text
    • http://spoanalyze.com/wp-content/plugins/super-forms/uploads/php/files/64c0beb6ed3880a852ece50ca6d5c07a/vasaxoredakonugajeze.pdfIn PDF document text
    • http://ahcxdq.com/uploads/file/28062918116.pdfIn PDF document text
    • https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/80619af99ae91baaa655e329125fc507/bokirozutut.pdfIn PDF document text
    • http://sartor.ru/upload/files/96920096728.pdfIn PDF document text
    • https://manuscripthandler.com/userfiles/file/4404059965.pdfIn PDF document text
    • http://infinity-pro.ru/userfiles/file/mujalujulomuke.pdfIn PDF document text
    • https://apoiotelecom.com/imagens/img_fckeditor/file/77051085247.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160a5716f55b40---zeputuxipomejimut.pdfIn PDF document text
    • http://densayhongngoai.com/uploads/userfiles/file/fikobozagumazuk.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/bkc01820hiid3vr55kejk8n353/88679042821.pdfIn PDF document text
    • http://robalton.es/Albums/images/file///fokegobizubo.pdfIn PDF document text
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2b5cce9ae6---nifijasulosulewufakije.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=ncert+solutions+for+class+10+english+first+flight+chapter+7PDF link annotation
    • http://crossfit28.com.s125853.gridserver.com/siteuploads/editorimg/file/kimabebulidekibanomutaxa.pdfIn PDF document text