Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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.
• 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/borellia/unsure.bringin/categorie?corpora&pinched=ZG93bmxvYWR8NzZJTTNsd2VIeDhNVFkxTkRjNE1EYzROM3g4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA&sproc=Y29hY2hpbmcgaW5zdGl0dXRlIG1hbmFnZW1lbnQgc29mdHdhcmUgY3JhY2sY29 PDF link annotation

  • https://desifaceup.in/upload/files/2022/06/TjPtw4WdG4xiAW95cVkw_09_8069209ef5faaa26b8bfa21f4f4b3b02_file.pdfIn PDF document text
  • https://bistrot-francais.com/total-uninstall-serial-key/In PDF document text
  • https://foreignaffairsnews.com/wp-content/uploads/2022/06/MortalKombatKompleteEditionFLT_Fitgirl_Repack.pdfIn PDF document text
  • https://thecryptowars.com/wp-content/uploads/2022/06/tradewindsgamefreedownloadoffullversion.pdfIn PDF document text
  • https://www.surfcentertarifa.com/crack-stardock-objectdock-plus-v2-01-743-incl-keyfilemaker-and-patch-e/In PDF document text
  • https://www.la-pam.nl/tharu-kirana-sinhala-astrology-software-29/In PDF document text
  • https://www.mesologiehetgooi.nl/?p=10867In PDF document text
  • https://talkotive.com/upload/files/2022/06/oteGkxGikmAFQzxr3efm_09_8069209ef5faaa26b8bfa21f4f4b3b02_file.pdfIn PDF document text
  • https://ozarkinstitute.oncospark.com/wp-content/uploads/2022/06/Avfdoubleshockcontrollerdriver.pdfIn PDF document text
  • https://hanffreunde-braunschweig.de/la-reina-del-sur-temporada-2-completa-por-torrent-version/In PDF document text
  • http://www.abbotsfordtoday.ca/wp-content/uploads/2022/06/Baritone_v128_redstone_mining_issue_in_minecraft_1122.pdfIn PDF document text
  • https://kurditi.com/upload/files/2022/06/b1LqUJBqyVl3PBIf52OA_09_8069209ef5faaa26b8bfa21f4f4b3b02_file.pdfIn PDF document text
  • https://waoop.com/upload/files/2022/06/KbXA2b1JjJOUf7dk3Ogb_09_180f4e17466d4fe66cb0aeaecaf1ecaf_file.pdfIn PDF document text
  • https://seoburgos.com/yakyuken-special-ps1-download-exclusive-is/In PDF document text
  • http://bookmanufacturers.org/wp-content/uploads/2022/06/AssassinsCreedIVBlackFlagFreedomCryCrackFixRELOADED_2021.pdfIn PDF document text
  • http://manukau.biz/advert/gpseismic-exclusive-crack/In PDF document text
  • https://arlingtonliquorpackagestore.com/imediatouch-radio-automation-broadcast-software-11/In PDF document text
  • https://4f26.com/wp-content/uploads/2022/06/Xf_Adesk_2013_X64_exe.pdfIn PDF document text
  • https://scappy.bmde-labs.com/upload/files/2022/06/ynnUtE1VBxqqoQmTdftp_09_8069209ef5faaa26b8bfa21f4f4b3b02_file.pdfIn PDF document text
  • https://tchatche.ci/upload/files/2022/06/MOS5uiif6uNgupQFZfLT_09_8069209ef5faaa26b8bfa21f4f4b3b02_file.pdfIn PDF document text
  • http://evacdir.com/borellia/unsure.bringin/categorie?corpora&pinched=zg93bmxvywr8nzzjttnsd2viedhnvfkxtkrjne1eyzrom3g4twpvm05iedhlrtbwsuhkbflxuxrzbxh2wnlcyljtrnpkq0jiulu1za&sproc=y29hy2hpbmcgaw5zdgl0dxrlig1hbmfnzw1lbnqgc29mdhdhcmugy3jhy2sy29In 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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