Malicious PDF — malware analysis report

Heuristics 10

• 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.
• Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
  Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://polovetanofup.weebly.com/uploads/1/3/5/3/135330247/tejatugewesug.pdf.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
  Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://golowaki.ru/123?utm_term=uc+browser+windows+phone+app PDF link annotation

  • https://polovetanofup.weebly.com/uploads/1/3/5/3/135330247/tejatugewesug.pdfIn PDF document text
  • http://lofajemami.sportsontheweb.net/19369274833.pdfIn PDF document text
  • http://about-igsupport.com/69543640310n2bp.pdfIn PDF document text
  • http://nakodinita.scienceontheweb.net/what_phrase_signals_a_compare_and_contrast_text_structure.pdfIn PDF document text
  • https://sevafigetof.weebly.com/uploads/1/3/4/9/134902911/5962882.pdfIn PDF document text
  • http://piter.store/rugaferimapifekafudiwevm1iox.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4403685/normal_600776ed04923.pdfIn PDF document text
  • http://opt15.ru/dugupuvaxogawalegi8z9dh.pdfIn PDF document text
  • http://nubuxeki.scienceontheweb.net/4th_grade_math_worksheets_printable.pdfIn PDF document text
  • https://dufofumiwiz.weebly.com/uploads/1/3/5/3/135309849/favejatutev-balowelir-losakisota.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4467287/normal_5ff4c20e4ea37.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4373770/normal_601baa3571ce4.pdfIn PDF document text
  • http://alphabitx.com/game_basara_apk_modmui3y.pdfIn PDF document text
  • http://smeshnoykir.space/vegetable_calorie_chartkijt3.pdfIn PDF document text
  • https://fiwozipuwawew.weebly.com/uploads/1/3/0/8/130814157/796385.pdfIn PDF document text
  • https://derovidexaw.weebly.com/uploads/1/3/1/3/131382126/sosawexagevuzoke.pdfIn PDF document text
  • 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://uploads.strikinglycdn.com/files/5eae3822-d175-43b3-af19-5a3b286ebc7f/watts_per_meter_squared_to_temperature.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/dbeba835-dcc8-4895-9b59-aebf2185158c/ryobi_10_portable_table_saw_dado_blade.pdfIn PDF document text
  • http://jabejanaboz.atwebpages.com/6642964420.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/1bf44bcc-2042-40e3-b28d-d8c5a0acc867/68633113870.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e3ae4a27-0395-4e27-9064-3f9dd1c3e636/my_roku_remote_wont_work_with_new_batteries.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/e178b78f-9fe5-44f9-81be-041412a4ecc4/remington_700_stock_mounting_screws.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a52475a1-2453-4f9f-a6d4-7a9b75b0d43a/nenore.pdfIn PDF document text
  • http://visugog.myartsonline.com/pdf_to_word_converter_software_download_for_pc.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/eaf63e93-5cda-44f6-93ad-7df9a8279715/lakukazudifusosur.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/cbcdf87d-5f08-4a81-9a31-3941ee260f51/sunbeam_warm_mist_humidifier_user_manual.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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