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.
• Brand-impersonation credential phishing lure high 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: call-to-action link host does not match the impersonated brand: https://ponafet.ru/123?utm_term=predicate+adjective+worksheets+with+answers.
• 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://ponafet.ru/123?utm_term=predicate+adjective+worksheets+with+answers PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4366341/normal_5fdf4c973b80e.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4422906/normal_5fef4271d22c9.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4420747/normal_6046dc21db506.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4413238/normal_6013bd120aaac.pdfIn PDF document text
  • https://cdn.sqhk.co/daxerarugak/hejh3hf/venus_fly_trap_care_uk.pdfIn PDF document text
  • https://s3.amazonaws.com/rimejiguvif/pbis_check_in_check_out_sheet.pdfIn PDF document text
  • https://cdn.sqhk.co/duvapegoleva/c6heyCy/good_dinner_places_near_me_now.pdfIn PDF document text
  • https://cdn.sqhk.co/reditifotep/9gfijgj/bitisadal.pdfIn PDF document text
  • https://cdn.sqhk.co/moxulofilose/l5gcUjd/rec_screen_recorder_hd_download.pdfIn PDF document text
  • https://cdn.sqhk.co/vakolitakap/igfh7iO/prison_wrestling_revolution_2020_3d.pdfIn PDF document text
  • https://s3.amazonaws.com/doxifuba/bloons_td_battles_5_apk_mod.pdfIn PDF document text
  • https://cdn.sqhk.co/fevazufalul/VqNIZhg/73797133153.pdfIn PDF document text
  • https://s3.amazonaws.com/wupixufekijax/kixij.pdfIn PDF document text
  • https://s3.amazonaws.com/zidosozawok/startup_food_business_plan_sample.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4490961/normal_6049d4ec5abab.pdfIn PDF document text
  • https://cdn.sqhk.co/razefudixid/fjuibgh/pdf_split_merge_windows_7.pdfIn PDF document text
  • https://cdn.sqhk.co/rozesivotix/niijfjb/35393095098.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://6ec3981f-6443-463b-a164-91fc69f101d9.filesusr.com/ugd/7603ae_48231c7580a84407997106fe81fa6277.pdf?index=trueIn PDF document text
  • http://pumejak.rf.gd/teknik_hedging_forex.pdfIn PDF document text
  • https://d4996ccb-aecf-47c4-aab6-3c4fe022e1b7.filesusr.com/ugd/b7ed05_bb9d062b5ef3426590a5c0aa0354a106.pdf?index=trueIn PDF document text
  • http://magisavupuwikiv.rf.gd/14987310170.pdfIn PDF document text
  • https://c18d9829-3add-4afa-bc87-35007fe3998a.filesusr.com/ugd/70c1ec_73a60711fc744e87ba9795c24abdb391.pdf?index=trueIn PDF document text
  • https://e25b7b56-d8f7-44cb-9276-56428e53d1cc.filesusr.com/ugd/63f3e8_0da27942216c4792997c3d601ebb3d30.pdf?index=trueIn PDF document text
  • https://b5b764bc-4fc6-48d7-9a4b-423a4d05f225.filesusr.com/ugd/3f2390_80279ce6a0f949ec8773d60bed2f5ff5.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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