Malicious PDF — malware analysis report

Heuristics 8

• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
  PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
• Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
  PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
• PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
  PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
• PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
  PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. 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 http://evacdir.com/retinal/nigeria/dente.mainstream?ZG93bmxvYWR8V1k2YURsMWVIeDhNVFkxTlRnME1qazRNWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=/remortgage/dGhlYSByZW5kZXIgMS41IGNyYWNrdGh PDF link annotation

  • https://stompster.com/upload/files/2022/06/gpxwtcnrGvuRyzUbbe21_22_06747e965e2e9cc3c578f7b9758a134f_file.pdfIn PDF document text
  • http://schweigert.ninja/wp-content/uploads/2022/06/Dire_Straits__Great_Albums_19811985_Released_in_Two_CD_Set_2011.pdfIn PDF document text
  • https://writeforus.website/wp-content/uploads/2022/06/AVG_PC_TuneUp_191_Build_1089_License_Crack_Key_Full_Version_.pdfIn PDF document text
  • https://letthemeatcottoncandy.de/2022/06/22/vray-for-revit-2015-exclusive-crack/In PDF document text
  • https://www.academiahowards.com/wp-content/uploads/2022/06/darldein.pdfIn PDF document text
  • https://www.sosho.pk/upload/files/2022/06/yS5NmaPeKiTbez4w3BAC_22_cf260c8a693de5cc362b6c78adf233c5_file.pdfIn PDF document text
  • https://moronencaja.com/wp-content/uploads/2022/06/AutoCad_2017_Crack_Free_Download.pdfIn PDF document text
  • https://footpathschool.org/2022/06/22/fantasy-grounds-demo-download-for-pc-crack-2021-serial-key/In PDF document text
  • https://www.scoutgambia.org/punjabi-grammar-book-pdf-free-download-hot/In PDF document text
  • https://friendship.money/upload/files/2022/06/cXFUpHaQBKtkEfbx37Q1_22_7e70f8b287fece7bee17ff0aa10cff5f_file.pdfIn PDF document text
  • https://thedetailz.com/wp-content/uploads/2022/06/Best_red_presets_for_lightroom_pirate_bay.pdfIn PDF document text
  • https://tranddrive.com/wp-content/uploads/2022/06/The_Official_Governor_of_Poker_2_APK_Game_Free_Download.pdfIn PDF document text
  • https://csermooc78next.blog/wp-content/uploads/2022/06/ibwave_design_6_with_crack_full.pdfIn PDF document text
  • https://nightshow.pro/wp-content/uploads/2022/06/Karta_Tunelowania_Teredo_Firmy_Microsoft_Sterownik_Windows_7.pdfIn PDF document text
  • https://socialpirate.org/upload/files/2022/06/2PEOu4BqzghT9kIjrO8b_22_06747e965e2e9cc3c578f7b9758a134f_file.pdfIn PDF document text
  • https://resistanceschool.info/idworks65serialnumber-hot/In PDF document text
  • https://jonathangraystock.com/2022/06/23/armando-jimenez-picardia-mexicana-pdf-download-better/In PDF document text
  • https://sagitmymindasset.com/wp-content/uploads/2022/06/haiman.pdfIn PDF document text
  • https://www.worldofstudies.com/promociones/battlefield-hardline-2018/In PDF document text
  • https://jomshopi.com/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22year30bd44cc13fa7a30ad813In PDF document text
  • http://schweigert.ninja/wp-In PDF document text
  • https://writeforus.website/wp-In PDF document text
  • https://jomshopi.com/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22year30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22monthnum30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22day30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22postname30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/In PDF document text
  • http://evacdir.com/retinal/nigeria/dente.mainstream?zg93bmxvywr8v1k2yursmwviedhnvfkxtlrnme1qazrnwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=/remortgage/dghlysbyzw5kzxigms41ignyywnrdghIn PDF document text
  • http://www.tcpdf.orgIn 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/xap/1.0/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://www.aiim.org/pdfa/ns/extension/In PDF document text
  • http://www.aiim.org/pdfa/ns/schema#In PDF document text
  • http://www.aiim.org/pdfa/ns/property#In PDF document text
  • http://www.aiim.org/pdfa/ns/id/In PDF document text

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