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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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/123?utm_term=10th+tamil+book+pdf+online PDF link annotation

  • https://lazumuron.weebly.com/uploads/1/3/4/8/134863931/pamawuj.pdfIn PDF document text
  • https://teriwogawuf.weebly.com/uploads/1/3/2/8/132815342/tuforipekigexem_lupamop_begisamu_mujesegisij.pdfIn PDF document text
  • http://a-trvl.ru/poulan_electric_chainsaw_chain_adjustmentf8h7s.pdfIn PDF document text
  • https://cdn.sqhk.co/woteruzid/THgiyih/66358066225.pdfIn PDF document text
  • https://cdn.sqhk.co/belebudetub/cgeifaA/41644735619.pdfIn PDF document text
  • https://cdn.sqhk.co/mifigatira/Uwtgdji/3d_maze_ball_domino.pdfIn PDF document text
  • https://vigenawora.weebly.com/uploads/1/3/4/4/134495248/jusuribamop.pdfIn PDF document text
  • http://indital.space/gakumipuxeturomabhkj0c.pdfIn PDF document text
  • https://cdn.sqhk.co/lokalofobox/ffdVief/xamazezesatozabazotin.pdfIn PDF document text
  • https://jijobowuzum.weebly.com/uploads/1/3/4/5/134590228/8c02d68fa7ea0e.pdfIn PDF document text
  • http://sethel.xyz/rip_curl_drifter_tide_watch_manualko912.pdfIn PDF document text
  • https://vekugeweser.weebly.com/uploads/1/3/4/3/134343213/rosonuzulavomamirod.pdfIn PDF document text
  • http://katermore.ru/67075640344edf2.pdfIn macro / runtime command snippet
  • http://copyrightsupporteds.com/modal_verbs_exercises_advanced_levelnbhx2.pdfIn PDF document text
  • https://sukaxivex.weebly.com/uploads/1/3/4/8/134895869/xoxodarewobezup.pdfIn PDF document text
  • http://probnik1313.tech/tendonitis_hand_exerciseszodfu.pdfIn PDF document text
  • https://tatogupuragafa.weebly.com/uploads/1/3/4/0/134096405/pibunezaxo-jovoxufumak-budoverozesopo.pdfIn PDF document text
  • https://gagejewepaji.weebly.com/uploads/1/3/4/4/134444149/d9949a0fe8367.pdfIn PDF document text
  • https://towelekuw.weebly.com/uploads/1/3/1/4/131406253/pagige.pdfIn PDF document text
  • http://operationhomeplate.com/76628223724prst.pdfIn PDF document text
  • https://vekugeweserIn macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://s3.amazonaws.com/midizaxopazeji/barangay_election_2018_campaign_guidelines.pdfIn PDF document text
  • https://s3.amazonaws.com/zuguvoxoki/what_is_the_dry_setting_on_my_portable_ac.pdfIn 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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