Malicious PDF — malware analysis report

Heuristics 8

• 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• 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://domainecomps.com/documents/files/57778456773.pdf

  • http://cngwalk.com/fckeditor/userfiles/image/4443969804.pdf
  • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/9h1ef1qhidkcmd44hjegmanveb/80040456414.pdf
  • http://daiwavn.com/uploads/image/files/lasukomariluvefesel.pdf
  • http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160840ebc06fde---78537614728.pdf
  • https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/ad98f918571be15ed5b4816bf616dc6c/30975484953.pdf
  • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160c949a2ee14c---jizigodiwifafoxare.pdf
  • http://littlepearlbooks.in/data/eimages/file/99804956183.pdf
  • https://doktor-ara.com/userfiles/files/12601985686.pdf
  • http://strefa-fitness.pl//fckeditor/editor/filemanager/connectors/phpplikifile/tasawavujiwuzu.pdf
  • http://shsclassof1959.com/clients/a/a7/a7a82b2a6025f7fafce5d77be70bf845/File/14966095769.pdf
  • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/8286f231ff986a1a551bcb1b67107674/joziv.pdf
  • http://aeronautike.com/userfiles/file/sixipemawizevuwepi.pdf
  • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/8d28d285aba9ff70820db4b9c15c9813/45852291708.pdf
  • http://bike-aholic.com/UserFiles/file/65980964666.pdf
  • http://shmgec.com/Uploadfiles/files/95087963945.pdf
  • https://ceccarbotosani.ro/userfiles/file/72213167599.pdf
  • https://agermag.ro/mm/file/97978163605.pdf
  • https://pfollowers.com/ci/userfiles/files/5380978396.pdf
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/636pdrd8vuv5cht44vav4uqec1/34794823426.pdf
  • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aa5c7bd2efc---36609336111.pdf
  • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/16070f4873c490---93556298712.pdf
  • http://bafiti.com/sklep/userfiles/file/gudakovejizorujujog.pdf
  • http://daiwavn.com/uploads/i
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=top+10+best+singers+of+all+time
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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