Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
  ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
• Embedded script payload in PDF stream high PDF_EMBEDDED_SCRIPT_PAYLOAD
  PDF stream bytes contain script execution markers such as ActiveXObject/CreateObject, WScript.Shell, PowerShell, or shell-exec primitives. This is stronger than ordinary PDF JavaScript because it indicates a staged external script payload hidden in stream bytes.
• 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.
• Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE
  One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
• 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/strik?utm_term=accu+chek+aviva+nano+error+code+111

  • https://cdn.sqhk.co/ladowomorik/H7pPwhh/baby_couple_love_wallpaper.pdf
  • http://kadanijojabuf.mywebcommunity.org/what_is_studied_in_macroeconomics.pdf
  • http://sapelijamot.22web.org/jilomuxopubopudategowovan.pdf
  • http://janorewaxeno.mygamesonline.org/shark_rotator_lift_away.pdf
  • http://veselutut.mywebcommunity.org/32560939937.pdf
  • http://vasizazesunof.medianewsonline.com/49718795385.pdf
  • https://xugowumilivave.weebly.com/uploads/1/3/4/8/134846580/nofabujokabipabafevu.pdf
  • https://fudanologakobur.weebly.com/uploads/1/3/5/3/135394175/81aa20b7cfd.pdf
  • https://pekonupag.weebly.com/uploads/1/3/2/7/132741447/5530737.pdf
  • https://cdn.sqhk.co/bilejufikone/ie5jfhe/85762744458.pdf
  • https://cdn.sqhk.co/zixajofazadi/hjjhJL4/18502674225.pdf
  • https://kimimidinom.weebly.com/uploads/1/3/1/4/131453749/77fe84.pdf
  • https://cdn.sqhk.co/muzedikerum/hOigZjd/ice_cream_sandwich_youtube_merch.pdf
  • https://cdn.sqhk.co/xudapurofoz/igxghge/march_madness_predictions_bleacher_report.pdf
  • http://www.ascendercorp.com/
  • http://www.ascendercorp.com/typedesigners.html
  • http://surufutikexa.epizy.com/kabixemeni.pdf
  • http://jumepenitujox.atwebpages.com/18795229627.pdf
  • http://baxamudixilado.rf.gd/free_bootstrap_templates_themeforest.pdf
  • http://vewawisu.onlinewebshop.net/standard_kitchen_cabinet_sizes_in_mm.pdf
  • http://tazodeb.epizy.com/vatasotizofefigilakajop.pdf
  • http://jofikuv.atwebpages.com/automating_active_directory_administration_with_windows_powershell.pdf
  • http://nizowozutagele.atwebpages.com/the_end_of_the_f_world_comic.pdf
  • http://zalinejogimi.rf.gd/pawn_of_prophecy_hardcover.pdf
  • http://godimodasixor.rf.gd/best_workout_plan_for_beginners_to_build_muscle.pdf
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://nizowozutagele.atwebpages.com/the_end_
  • http://scripts.sil.org/OFL

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