Malicious PDF — malware analysis report

Heuristics 5

• 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.
• 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://eksan-ltd.com/userfiles/file/16352349487.pdf In PDF document text

  • http://wflyyxzrgs.com/uploadfile/file/a33506795e4f55759bdd276950c6f09f.pdfIn PDF document text
  • https://marcuspietrek.de/MARCUS/files/file/48075130990.pdfIn PDF document text
  • http://hbtsap.com/Upfiles/news/file///jipasejatu_momasel.pdfIn PDF document text
  • https://mathrainbow.com/userfiles/file/jugopizidiso_ronoxunubuwaz.pdfIn PDF document text
  • http://noitoctuantay.com/upload/ckfinder/files/kevobigetedi.pdfIn PDF document text
  • http://tec-color.com/ckfiles/files/20885982919.pdfIn PDF document text
  • https://mehmetefendigreece.com/uploads/files/f7170447-6377-4f9d-9cfa-b6c0fbe77111.pdfIn PDF document text
  • http://briquettemachinery.com/d/files/lasaw.pdfIn PDF document text
  • http://robschmidtautobody.com/userfiles/file/30312312892.pdfIn PDF document text
  • http://shuhang.com/userfiles/file///66164122009.pdfIn PDF document text
  • https://thepluoimienbac.com/upload/files/vexaj_kasumenefi.pdfIn PDF document text
  • http://siddhimanakamana.com/assets/userfiles/files/72052610963.pdfIn PDF document text
  • http://roocenter.ru/upload/file/fajupiver.pdfIn PDF document text
  • http://tncsteel.com/uploadfile/89135567307.pdfIn PDF document text
  • http://bona-brickmachine.com/d/files/ruboru.pdfIn PDF document text
  • http://ingegnasrl.com/userfiles/files/c8375fc6_c525_4ad0_af95_87ddd98cefee.pdfIn PDF document text
  • http://allycatering.com/userfiles/kefegi_raluvepo.pdfIn PDF document text
  • http://xszhuhai.com/uploadfiles/files/15138d53-e943-469a-af99-90eb6dba9457.pdfIn PDF document text
  • https://bekoduz.nurepikis.com/565826476246076026125298464731831986076625?xigoviwupuwobuxusobenudenugifogurunufumasawure=kezotajegefupifagumemofijomanofepowenodusemevijuzozanexolotizubemuvorijefojutidapemonezuxadupuzedisemedilejotelejoviwesupidufivutazetipibetuzubobolapijakegitawofovinosamelunixexerazudefilodorisuraxoxugifafix&utm_term=prueba+psicotecnica+policia+nacional+de+colombia&dibafupotalodijuwudijelumigukedemuj=tawowokemimumalikubevifibujifuxugurijepubagigusoxinuxukugeguwulopizitesavapamupudibifagomajikezivuxefixasiwujafokujelakuxuril)/Type/ActionIn PDF document text
  • http://eksan-ltd.com/userfiles/file/16352349487.pdf)/Type/ActionIn PDF document text
  • http://wflyyxzrgs.com/uploadfile/file/a33506795e4f55759bdd276950c6f09f.pdf)/Type/ActionIn PDF document text
  • https://marcuspietrek.de/MARCUS/files/file/48075130990.pdf)/Type/ActionIn PDF document text
  • http://hbtsap.com/Upfiles/news/file///jipasejatu_momasel.pdf)/Type/ActionIn PDF document text
  • https://mathrainbow.com/userfiles/file/jugopizidiso_ronoxunubuwaz.pdf)/Type/ActionIn PDF document text
  • http://noitoctuantay.com/upload/ckfinder/files/kevobigetedi.pdf)/Type/ActionIn PDF document text
  • http://tec-color.com/ckfiles/files/20885982919.pdf)/Type/ActionIn PDF document text
  • https://mehmetefendigreece.com/uploads/files/f7170447-6377-4f9d-9cfa-b6c0fbe77111.pdf)/Type/ActionIn PDF document text
  • http://briquettemachinery.com/d/files/lasaw.pdf)/Type/ActionIn PDF document text
  • http://robschmidtautobody.com/userfiles/file/30312312892.pdf)/Type/ActionIn PDF document text
  • http://shuhang.com/userfiles/file///66164122009.pdf)/Type/ActionIn PDF document text
  • https://thepluoimienbac.com/upload/files/vexaj_kasumenefi.pdf)/Type/ActionIn PDF document text
  • http://siddhimanakamana.com/assets/userfiles/files/72052610963.pdf)/Type/ActionIn PDF document text
  • http://roocenter.ru/upload/file/fajupiver.pdf)/Type/ActionIn PDF document text
  • http://tncsteel.com/uploadfile/89135567307.pdf)/Type/ActionIn PDF document text
  • http://bona-brickmachine.com/d/files/ruboru.pdf)/Type/ActionIn PDF document text
  • http://ingegnasrl.com/userfiles/files/c8375fc6_c525_4ad0_af95_87ddd98cefee.pdf)/Type/ActionIn PDF document text
  • http://allycatering.com/userfiles/kefegi_raluvepo.pdf)/Type/ActionIn PDF document text
  • http://xszhuhai.com/uploadfiles/files/15138d53-e943-469a-af99-90eb6dba9457.pdf)/Type/ActionIn PDF document text
  • https://bekoduz.nurepikis.com/565826476246076026125298464731831986076625?xigoviwupuwobuxusobenudenugifogurunufumasawure=kezotajegefupifagumemofijomanofepowenodusemevijuzozanexolotizubemuvorijefojutidapemonezuxadupuzedisemedilejotelejoviwesupidufivutazetipibetuzubobolapijakegitawofovinosamelunixexeraPDF link annotation
  • https://bekoduz.nurepikis.com/565826476246076026125298464731831986076625?xigoviwupuwobuxusobenudenugifogurunufumasawure=kezotajegefupifagumemofijomanofepowenodusemevijuzozanexolotizubemuvorijefojutidapemonezuxadupuzedisemedilejotelejoviwesupidufivutazetipibetuzubobolapijakegitawofovinosamelunixexerazudefilodorisuraxoxugifafix&utm_term=prueba+psicotecnica+policia+nacional+de+colombia&dibafupotalodijuwudijelumigukedemuj=tawowokemimumalikubevifibujifuxugurijepubagigusoxinuxukugeguwulopizitesavapamuPDF link annotation
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://ns.adobe.com/iX/1.0/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://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text

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