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://bologen.ru/wix?keyword=oc+maker+challenge+jr PDF link annotation

  • https://cdn.sqhk.co/natokaze/fhjKeet/notepad_application_download.pdfIn PDF document text
  • https://bokosemebejira.weebly.com/uploads/1/3/0/8/130813317/rarofowujekiged.pdfIn PDF document text
  • https://cdn.sqhk.co/kulobuwaxegu/ghd0ghN/five_nights_at_freddy_s_song_4.pdfIn PDF document text
  • https://fexipipovunozem.weebly.com/uploads/1/3/2/6/132682859/sojuvifiwisix-levoruxuwosezop-mebut-vazedepozom.pdfIn PDF document text
  • https://cdn.sqhk.co/rutunidosaw/bia9Jjf/88098602631.pdfIn PDF document text
  • https://cdn.sqhk.co/lepudijazur/jjgTNX9/dragon_village_m_mod_apk_1._2._10.pdfIn PDF document text
  • https://cdn.sqhk.co/bojodunaluko/gLjcmd7/samsung_s8_email_app_not_syncing.pdfIn PDF document text
  • https://getiwojaxewife.weebly.com/uploads/1/3/4/0/134012456/a12ce3ef3d9111c.pdfIn PDF document text
  • http://buvemalo.66ghz.com/bavazukekevabuxuxo.pdfIn PDF document text
  • https://uploads.stIn macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://413f70bc-0247-4a04-a3fc-eabb14e2b93f.filesusr.com/ugd/f18ee6_530842c8a28245a0bd841fd1f420af2a.pdf?index=trueIn PDF document text
  • https://76df98a8-3e94-4eee-a6f5-23e1de06049b.filesusr.com/ugd/54c74c_ecc1edd5c201451ea005b4d9ec7f26c7.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/f479b3df-3e18-4937-a238-2ad3e40f1aae/what_is_the_hunger_games_mockingjay_part_1_about.pdfIn PDF document text
  • https://858e1da1-ad31-4e5b-aec0-89c59c6c71f6.filesusr.com/ugd/6240f8_c845af2c36b54825b50f57836f8e5bb7.pdf?index=trueIn PDF document text
  • http://gixunov.rf.gd/sigulot.pdfIn PDF document text
  • https://43a2ba88-5de9-465b-b95f-6a4d82f2d06e.filesusr.com/ugd/dcbeda_96b145257a8e4fdda75b23d2594883f9.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/76988189-0fc0-481d-a149-af6934681366/how_to_create_a_stock_trading_strategy.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b2ae89fd-0770-4b78-900e-4853dc679832/kadim.pdfIn PDF document text
  • http://sigukelebejewir.epizy.com/fikukobiweb.pdfIn PDF document text
  • https://528f6e5c-6927-42ef-b7a5-a8f9c349750c.filesusr.com/ugd/07b979_656f79a39ca8444daf4c235677219997.pdf?index=trueIn PDF document text
  • https://44034db3-6cdd-4729-adf3-7ccd6afcf354.filesusr.com/ugd/9fe9cc_098a22e3083d4db38f6e967cc11d8775.pdf?index=trueIn PDF document text
  • https://73099f28-10d5-4558-98a1-2f8dc61f1a2f.filesusr.com/ugd/f62eaa_0c8e8925521242ac913de58ba1cf2e1d.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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