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
• 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://druttle.ru/strik?utm_term=how+to+reset+lock+on+sentry+safe PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4407777/normal_60282c0e104aa.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4496811/normal_5feb2c881f78e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4389586/normal_604a1c335d6ac.pdfIn PDF document text
  • http://giwitap.getenjoyment.net/penguin_readers_level_2.pdfIn PDF document text
  • http://sakepugikunon.mypressonline.com/bumogenipexedolope.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4497369/normal_5fe9c6ff326ac.pdfIn PDF document text
  • http://fodujijosezobaw.22web.org/jomem.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4489259/normal_603553ff248a2.pdfIn PDF document text
  • http://giwitap.getenjoyment.net/penIn macro / runtime command snippet
  • 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://f421159b-d329-41e8-bc42-072bc93e4c50.filesusr.com/ugd/65d6f7_6c47884a5865480a9666a1ad27c91e66.pdf?index=trueIn PDF document text
  • http://tuwafexom.epizy.com/kalujojilopikovos.pdfIn PDF document text
  • http://pixoriwabivonol.rf.gd/gefesesa.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/bfd70cd7-fbb3-4759-93df-3a766b1e242c/color_pencil_drawing_tutorial_step_by_step.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/fbed9573-7ae1-4718-9240-3591591f6cf6/20912122225.pdfIn PDF document text
  • http://rurubafemiw.rf.gd/72382840847.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/f47d1903-acad-464c-8761-b8621e8d31a3/how_to_get_hired_as_an_interior_decorator.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3e0dd67b-d42f-4a7e-8bca-0aab0e2a2f41/how_to_make_naturally_curly_hair_look_good.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cf43663c-e0a1-47aa-b22d-ae9c1b8eec7d/88552097783.pdfIn macro / runtime command snippet
  • https://8459f3b7-b2e6-4b58-af31-5f29adf293b7.filesusr.com/ugd/a68450_a9e1f79dadf347f58f03b50a8439ba64.pdf?index=trueIn PDF document text
  • http://sakamajuxuga.epizy.com/pinevadekijofosemo.pdfIn PDF document text
  • https://aca292c6-a3ee-4c96-b4c9-db15c8eca1b9.filesusr.com/ugd/cd1d52_141020eb491c465d82b2c5db33e1227c.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/25b5d61d-7a69-4dd7-b0dc-18cf27b0b8a2/53173600635.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b2d638b5-d07d-4223-b383-80f0a1173413/75153397712.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/6e3f67bd-77c7-4304-9b08-f86b39ae4524/excellent_words_in_english.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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