Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• 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://cructi.ru/uplcv?utm_term=download+free+fire+unlimited+diamond+apk PDF link annotation

  • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f79be9380a---mudofusijuk.pdfIn PDF document text
  • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b07261ae80e---52620135264.pdfIn PDF document text
  • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/160913ec2ed3d2---38157396343.pdfIn PDF document text
  • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/62123c08e9024c93e12bfa808c221ade/zamegeme.pdfIn PDF document text
  • http://cepsagibyachtfuels.com/images/photos/21442527129.pdfIn PDF document text
  • https://spectrumohio.com/wp-content/plugins/super-forms/uploads/php/files/e659532828388d3db69b9a52de3c50d9/sipiziboxeza.pdfIn PDF document text
  • http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609962f34032a---mumigavodiziramutakega.pdfIn PDF document text
  • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087da6a13b46---riwino.pdfIn PDF document text
  • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cafd3c76ae---20533888764.pdfIn PDF document text
  • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608c70629bc90---58996625947.pdfIn PDF document text
  • https://bienenaktuell.com/sites/bienenaktuell.com/files/file/29809300588.pdfIn PDF document text
  • https://rmdschoolandcollege.com/wp-content/plugins/super-forms/uploads/php/files/nhidi1v63mt08kc6aa6uabtk20/gaxumisowodimiporutuk.pdfIn PDF document text
  • http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0f5c8c1f42---jiwuvujuwogegu.pdfIn PDF document text
  • http://www.sport-konyv.hu/userfiles/file/xanatanapif.pdfIn PDF document text
  • http://magnachip.cn/userfiles/file/20210518084813.pdfIn PDF document text
  • https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cc65b65a98d---suwisewinuberibuviwise.pdfIn PDF document text
  • http://yournamebadges.com/withyourdog/cms_uploads/file/bikuwesusugiwu.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn PDF document text

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