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
• Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
  Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
• 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://druttle.ru/123?utm_term=error+code+biohd1 PDF link annotation

  • https://cdn.sqhk.co/nadizolobe/ehihcjb/8187824686.pdfIn PDF document text
  • https://cdn.sqhk.co/suxupijisajo/mogd3gj/bypass_android_pattern_lock_screen_using_cmd_2015.pdfIn PDF document text
  • https://cdn.sqhk.co/matajikiwov/8u9rgit/hospital_zombie_find_out.pdfIn PDF document text
  • https://cdn.sqhk.co/sigidezok/2LR0jay/griswold_christmas_decorations.pdfIn macro / runtime command snippet
  • http://macsk.space/opera_ballet_paris75r00.pdfIn PDF document text
  • http://dekagexagupeje.iblogger.org/boom_beach_mod_apk_ios.pdfIn PDF document text
  • https://dilisuri.weebly.com/uploads/1/3/5/3/135326113/lepetevenikasifaruli.pdfIn PDF document text
  • https://nixalimug.weebly.com/uploads/1/3/2/6/132680811/7265042.pdfIn PDF document text
  • https://mifadumuvuvog.weebly.com/uploads/1/3/4/6/134689338/9030540.pdfIn PDF document text
  • http://maroron.22web.org/11996657853.pdfIn PDF document text
  • http://bestsaleshopin.xyz/82471587806xj75f.pdfIn PDF document text
  • https://vabeliguteziji.weebly.com/uploads/1/3/1/3/131379360/7095922.pdfIn PDF document text
  • https://cdn.sqhk.co/matajikiwov/8u9rgit/hospitaIn 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/vavabi/41864181576.pdfIn macro / runtime command snippet
  • https://s3.amazonaws.com/jidosatikim/cast_screen_to_apple_tv_from_android.pdfIn PDF document text
  • https://s3.amazonaws.com/wixatax/30072103087.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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