Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• 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 https://nipisod.ru/wix?keyword=forest+park+middle+school+phone+number PDF link annotation

  • http://reweder.site/71651917527rqhzq.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4463533/normal_602b128969db4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4415046/normal_600e36e707c62.pdfIn PDF document text
  • http://rerubin.space/dijusodefufutisiwemukegofdqvwd.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4481273/normal_5fc7d87253afa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375358/normal_60184eb1d5071.pdfIn PDF document text
  • http://copyrightnotice-ig.com/chogada_tara_full_audio_song_pagalworldf66wb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4460042/normal_601c5d1862f74.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4406782/normal_5fcf4e3ce0337.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4468550/normal_5fd2a0cf81c2c.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4414495/normal_601cc37ea8a01.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4366324/normal_5fcf9bff283e8.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://www.daltonmaag.com/In PDF document text
  • https://c01188fd-d8af-4b86-846b-090f7ecd58d8.filesusr.com/ugd/9058e5_2ec621ceb4d04ba0a154ec72ae87ad2d.pdf?index=trueIn PDF document text
  • https://4eff3ec4-d147-45d1-be73-876d9e1d0019.filesusr.com/ugd/efb3f0_5562adc392754205aee836aab1e70448.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/xojafemori/32024163840.pdfIn PDF document text
  • https://s3.amazonaws.com/pezofut/midland_wr120_review.pdfIn PDF document text
  • https://c546c886-5aa5-41cc-813f-4ed3e146772c.filesusr.com/ugd/b3e52d_a95214cd18324e7ca4e56ea836520f7f.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/zubuwujoxom/60328894884.pdfIn PDF document text
  • https://s3.amazonaws.com/pidufozu/allah_99_names_video.pdfIn PDF document text
  • https://4ac36a2f-1533-488b-b282-cf34cdace458.filesusr.com/ugd/bcfc12_7dfb27d31cd3412586f5e2e341a9e0e3.pdf?index=trueIn PDF document text
  • https://75e6061f-eb7a-4ce8-b546-077bf96366c3.filesusr.com/ugd/2dfd19_763e5e5cd50443228c697001bc1269a4.pdf?index=trueIn PDF document text
  • https://8eeb1f0a-0cdd-4c66-98a4-83777b49fb54.filesusr.com/ugd/64f9d2_dd2eed4c78924145b8bd366b80d90103.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/lorifawuvawot/latitude_longitude_google_maps_android.pdfIn PDF document text
  • https://7afd96e6-4611-46d4-9b98-d111b897c281.filesusr.com/ugd/154221_53ea115baea7494e849de3003c5894fe.pdf?index=trueIn PDF document text
  • https://a540aa65-2eb1-4ac3-86d0-bf6a54daac96.filesusr.com/ugd/2d797c_be7f2dac4a49416fb8eae6caabb3f0d6.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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