Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• 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://piximemob.weebly.com/uploads/1/3/4/3/134371032/vavuba_nuberakoduxi.pdf.
• MFA / one-time-code harvesting lure high SE_MFA_LURE
  Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
• 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.
• Document signing service impersonation lure medium SE_DOCUSIGN_LURE
  Document impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://dafemum.ru/award?keyword=electronic+signature+in+pdf+adobe In PDF document text

  • http://bibivire.mygamesonline.org/kenadozakus.pdfIn PDF document text
  • http://srakan.space/fumovenodabikagonepr1iwj.pdfIn PDF document text
  • http://tovarzone.ru/35635546098zwbrb.pdfIn PDF document text
  • https://piximemob.weebly.com/uploads/1/3/4/3/134371032/vavuba_nuberakoduxi.pdfIn PDF document text
  • http://erkutungotu.com/pazapilifugutenumez2a5a1.pdfIn PDF document text
  • https://tixilumudesowor.weebly.com/uploads/1/3/6/0/136095614/641895f0.pdfIn PDF document text
  • https://favaruzikab.weebly.com/uploads/1/3/4/8/134871436/xutufomovut.pdfIn PDF document text
  • https://sasominafa.weebly.com/uploads/1/3/4/3/134362810/5765103.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://73b3f487-90f5-41a6-bf44-750372f72efd.filesusr.com/ugd/39e8d0_52944dd733264051b072470e686085a1.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/nimuwet/weather_report_for_calmar_alberta.pdfIn PDF document text
  • http://pelebirepopo.onlinewebshop.net/matibabodinakanemovej.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/61c2d2b3-dcb2-4e29-bdc2-b7a9eecfa674/50628540906.pdfIn PDF document text
  • https://5b0ea1c3-b874-41d5-a3cc-49595beb80a6.filesusr.com/ugd/0c63be_f2b8cf48fa154735b418d5301407c362.pdf?index=trueIn PDF document text
  • https://198d5876-2e36-4a54-a59d-b4c1060b65be.filesusr.com/ugd/4733ca_975f61417b494da79d44f73db551ff0c.pdf?index=trueIn PDF document text
  • http://letutemoxeluz.onlinewebshop.net/15464133685.pdfIn PDF document text
  • https://18e7ef82-5c75-44fe-ae22-4c356c2c9ce0.filesusr.com/ugd/749e61_b24d424d55b14316bea618cfa4a25991.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/0f1d3fc4-106b-4c45-ac1d-87690bef21ee/petevinejatujeduviwidi.pdfIn PDF document text
  • https://s3.amazonaws.com/bokexizometun/49133252858.pdfIn PDF document text
  • https://s3.amazonaws.com/fakuguvil/spotify_music_free_windows.pdfIn PDF document text
  • https://s3.amazonaws.com/sezewu/practice_worksheet_the_unit_circle_answers.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2c155800-b4d5-429e-a410-f8001643e70f/xopunulep.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ffdb3373-a9eb-43ae-94f8-4884480a8ddd/netgear_n600_wireless_dual_band_gigabit_router_specs.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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