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://botokaw.ru/strik?utm_term=algebra+1+pdf+download PDF link annotation

  • http://fogafiv.mypressonline.com/xuzexufajezebitabitiri.pdfIn PDF document text
  • https://mifimixaxenerut.weebly.com/uploads/1/3/3/9/133999571/jujavodafegadod-zeboxasulo-lukozodunuwal.pdfIn PDF document text
  • http://dasiroxejipi.22web.org/livros_de_augusto_cury_para.pdfIn PDF document text
  • http://nugiwelajoz.22web.org/is_there_an_extension_for_drivers_license_renewal_in_pa.pdfIn PDF document text
  • https://wukavuzadit.weebly.com/uploads/1/3/0/7/130776823/568ea7b4e60e33.pdfIn PDF document text
  • https://babilazumi.weebly.com/uploads/1/3/4/6/134666759/7748b6fc16a0a00.pdfIn PDF document text
  • http://zefujixa.mywebcommunity.org/cido_sulfrico_massa_molecular.pdfIn PDF document text
  • https://fenawivo.weebly.com/uploads/1/3/4/0/134000055/zusexinet.pdfIn PDF document text
  • http://wozupabalaviv.medianewsonline.com/fijozovexavakupo.pdfIn PDF document text
  • http://fofumumitem.medianewsonline.com/powershell_5.0_download_windows_7_64_bit.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4498882/normal_5fcc4d85a2e7e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4378856/normal_60145820c1763.pdfIn macro / runtime command snippet
  • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/498de.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366364/normal_5fd26743cb2fa.pdfIn PDF document text
  • http://nakalabaxis.mywebcommunity.org/betty_crocker_cookbook.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/72fb674b-ae3f-4cae-9a66-2358316b0a86/putafisuxawonufedunox.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/107f19dc-d363-4d2a-bf16-cd7ca1b95df7/ninuzedilixitigexuvowu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d43816c8-dc87-4f7c-8e9a-4ebad128f196/zevodibipisaxowesota.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ca92e91d-de56-4781-91a6-4944b7a4c092/folger_macbeth_mla_citation.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/79035ef3-cd91-4db2-84c9-ad6b0d4271da/69744557562.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8ad5cea1-4776-47ec-b05f-955ef0911282/pajibepim.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/597e7d77-6df2-4ae3-b3df-79ed133e8e97/nourishing_traditions_weeknight_meals.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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