Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• 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.
• PHP webshell / backdoor source high WEBSHELL_PHP
  The file contains PHP server-side code with the signature of a webshell/backdoor (request input fed to a command/code-exec sink). A webshell takes attacker input from an HTTP request and runs commands/code on the server. Flagged as a malicious hacktool artifact even when carried inside a document or archive — the code does not execute from the carrier, but the file is a webshell.
• 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 https://vilenefex.ru/123?utm_term=bollywood+movie+bazaar+full+hd PDF link annotation

  • https://cdn.sqhk.co/konosoka/cKslifT/download_apk_3d_cute_cat_live_wallpaper.pdfIn PDF document text
  • https://jawimuxuketeg.weebly.com/uploads/1/3/4/7/134763527/jukuferomofo.pdfIn PDF document text
  • https://cdn.sqhk.co/vawadawuleja/icsVW8B/vice_news_hbo_last_episode.pdfIn PDF document text
  • https://cdn.sqhk.co/kuzetuzame/9dqhob5/download_whack_your_boss_cartoon_land.pdfIn PDF document text
  • http://lixorajepidil.mygamesonline.org/what_is_a_battery_float_charger.pdfIn PDF document text
  • https://cdn.sqhk.co/kidimezamos/fQjjQie/android_okhttp_post_example.pdfIn PDF document text
  • https://cdn.sqhk.co/gafisasiwu/0oAjfjg/38261585575.pdfIn PDF document text
  • https://vejazejama.weebly.com/uploads/1/3/1/3/131381369/8197558.pdfIn PDF document text
  • https://cdn.sqhk.co/fujotojaxob/diafhiB/swag_video_status_maker_mod_apk_download.pdfIn PDF document text
  • https://wexarasi.weebly.com/uploads/1/3/4/3/134351888/4244165.pdfIn PDF document text
  • https://cdn.sqhk.co/miloxuso/iicJih1/football_games_2020_ps4.pdfIn PDF document text
  • https://tewijudejasivi.weebly.com/uploads/1/3/2/6/132682467/83a7f954.pdfIn PDF document text
  • https://sejiganabukuja.weebly.com/uploads/1/3/4/5/134585043/xuginu.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/1aad53ef-4f78-4f8a-a8cc-4f077b7a2898/waxejavaverogelurof.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9e020886-9932-40e6-967d-663cf40ddb38/jifuvepivogana.pdfIn PDF document text
  • http://bumejefivoxigo.myartsonline.com/how_much_is_david_beckham_worth_in_pounds.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c5499e03-0f4a-427e-ba38-54c79a5e1a78/suketilikazopugavap.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/330c8f1b-b035-476d-bd3f-2cb4170423f1/change_numbers_in_excel_from_arabic_to_english.pdfIn PDF document text
  • https://98e80eac-0673-4bf9-a3de-4132461903b3.filesusr.com/ugd/1acd69_2afad8282e1240d7ba566f911fda7190.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/62579a7d-84f3-490c-88e9-fc79177b5c27/how_can_i_contact_paparazzi.pdfIn PDF document text
  • http://pupagerirawax.myartsonline.com/can_you_flat_tow_a_dodge_durango_2018.pdfIn PDF document text
  • https://411be8f8-4ba1-40b5-9edf-cc4a2c3d5ecc.filesusr.com/ugd/a86d68_2387c59103ed4815ab89f2e922590da9.pdf?index=trueIn 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/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://scripts.sil.org/OFLIn PDF document text

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