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://zajinet.ru/wix?keyword=hearthstone+wood+stove+parts PDF link annotation

  • http://avtoshtorki.shop/balufikurafitibawxo65y.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402717/normal_603a4fc208c06.pdfIn PDF document text
  • http://dajexori.mypressonline.com/complaint_under_section_138_of_the_negotiable_instruments_act_1881.pdfIn PDF document text
  • http://foselosen.sportsontheweb.net/muwadiwovenide.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4485166/normal_60265d8990f7e.pdfIn PDF document text
  • http://creditscorecard.info/neromiragibelalegopuxevegebian.pdfIn PDF document text
  • http://hardcreditcheck.info/adanga_maru_tamil_movie_tamilandalnwxi.pdfIn PDF document text
  • http://prizinsta24.online/allo_allo_episode_4_season_1juqmg.pdfIn PDF document text
  • http://digitalmedialit.com/how_to_save_mp3_to_iphone_camera_rollgs4c0.pdfIn PDF document text
  • http://komaxinatobofe.medianewsonline.com/supply_chain_management_mba.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://1580f21e-fc75-4350-9669-3be8b7525729.filesusr.com/ugd/eff6cf_53f2c89fdfad43648a9f26536c617731.pdf?index=trueIn PDF document text
  • https://69cf8a46-0d3d-4b71-8fd1-93df925da18e.filesusr.com/ugd/e4064d_1ed251da7aa847d093e7f112e394f8d1.pdf?index=trueIn PDF document text
  • https://e31b828f-dd5d-4b35-abba-5777d5fc2ed6.filesusr.com/ugd/56a8cc_df47ecb3fd2c49b288486ee398e16aa9.pdf?index=trueIn PDF document text
  • https://3485775d-af35-4505-8fb4-f6750f575e04.filesusr.com/ugd/42f18e_62aed2b1896f4ed7a780e8839139bd73.pdf?index=trueIn PDF document text
  • https://af30af13-e0b7-4de0-aca7-7783c01eade2.filesusr.com/ugd/9757e7_5314288163844bc5af7c8b0fe623583b.pdf?index=trueIn PDF document text
  • http://kuxemozoxabonag.onlinewebshop.net/types_of_statistical_estimation.pdfIn PDF document text
  • http://juborekif.atwebpages.com/apache_hive_essentials_2nd_edition.pdfIn PDF document text
  • https://4e4301d6-cc9a-4939-960a-6b497c1efea6.filesusr.com/ugd/d78803_58ee511cce7e49a3ac15dd61d98f29bf.pdf?index=trueIn PDF document text
  • https://9d76d0c6-5807-43ac-a2ba-7b4112d1a20a.filesusr.com/ugd/5cd33b_01a0a0200619474f95900c750d8820dc.pdf?index=trueIn PDF document text
  • http://kuzemepusiloj.onlinewebshop.net/what_are_the_four_sutras.pdfIn PDF document text
  • https://6f29901e-f5c9-4775-879c-97b2de5c8d5b.filesusr.com/ugd/0bf195_5d2289c8d31c41cb88256ff73673d524.pdf?index=trueIn PDF document text
  • https://5c9c3928-af7d-4195-9e43-9647d7263c15.filesusr.com/ugd/508998_891632c29a3842458ab640dd187e6e92.pdf?index=trueIn PDF document text
  • http://tipipigi.atwebpages.com/sepsis_3_criteria.pdfIn PDF document text
  • https://ed4d48c2-14ea-47f5-a89a-b82193587323.filesusr.com/ugd/8ce377_917d83babe874e14ba16b467ed6609f2.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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