Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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 http://longvu.vn/Images_upload/files/62021228176.pdf In PDF document text

  • https://aplusadvance.com/naver_editor/data/file/61296028033.pdfIn PDF document text
  • http://statewideroadservices.com/clients/879378/File/28606817035.pdfIn PDF document text
  • http://kalmi.ru/upfiles/files/72793872486.pdfIn PDF document text
  • http://bitite.lv/media/txt/122/file/vomemol.pdfIn PDF document text
  • https://uleiuri.ro/userfiles/file/92833063265.pdfIn PDF document text
  • https://cowichanseniors.ca/userfiles/file/nuvatebanobumuwakoku.pdfIn PDF document text
  • http://northstarbaptisttyler.com/clients/a/a4/a4b4c2e389351fb2dee96c3f727c6a57/File/60052508482.pdfIn PDF document text
  • http://yorkiematch.com/clients/6/65/653dc45b8f6063886304ac4260dbb99c/File/60085038147.pdfIn PDF document text
  • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1606f662293d8a---51139775123.pdfIn PDF document text
  • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608ba2a9467bd---60974207207.pdfIn PDF document text
  • http://thedewakohchang.com/image/upload/File/isolukoxan.pdfIn PDF document text
  • http://charmingcurls.se/upload/file/debipetux.pdfIn PDF document text
  • http://huarui-bio.com/upload/files/99641801291.pdfIn PDF document text
  • http://grhs1983.com/clients/72571/File/budufe.pdfIn macro / runtime command snippet
  • http://thuocnam.xyz/images/files/fagatiduzikupiroboropodi.pdfIn macro / runtime command snippet
  • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/6f40d2ded26398c861dbbb7b194bc12c/fabukuwufitobejezarez.pdfIn PDF document text
  • http://edumedcare.pl/upload/files/vipokexovufikodat.pdfIn PDF document text
  • http://thegroverestaurantnj.com/userfiles/files/60054580009.pdfIn PDF document text
  • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/4694d9ee357596378cc2fa82d9522ef9/bimibeb.pdfIn PDF document text
  • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077f85deec26---litutepevefovunotod.pdfIn PDF document text
  • https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/af47bb6bfd8fb7f2049e1f6ed71a71ef/10179554707.pdfIn PDF document text
  • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/16095e52a21523---bariwu.pdfIn PDF document text
  • https://havanic.com/cache/fck_files/file/batofig.pdfIn PDF document text
  • http://huarui-bio.com/uplIn macro / runtime command snippet
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=multiplication+patterns+worksheets+pdfPDF link annotation
  • 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://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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