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.
• 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
• 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/award?keyword=definition+of+second+language+acquisition+pdf PDF link annotation

  • https://static.s123-cdn-static.com/uploads/4415944/normal_5ffefeb43f766.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4374199/normal_5fcd0057b5a4a.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4385415/normal_600a54e327f92.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4451220/normal_5fee1454539b4.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4498404/normal_600506ac6fd26.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://cd70d4e5-4a1a-4071-96d1-f2415ea5ece1.filesusr.com/ugd/7f46b5_6567c3b697504d60bbb873edd5c8c614.pdf?index=trueIn PDF document text
  • https://s3.amazonaws.com/gulapore/rukuwovajazemowol.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9cecf571-fae1-45d6-8ca8-84c1487fcc16/how_to_make_pictures_in_word_smaller_file_size.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/c3447eb8-98fc-4e10-a4a9-b2c907bddfbe/95838908133.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b5f1e1d0-a711-4907-8cf8-68b7badc3e81/xaxanidate.pdfIn PDF document text
  • https://s3.amazonaws.com/sesijesule/android_studio_signed_apk_password_verification_failed.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d37f2cb8-fc64-4fcf-9631-060510e052bb/how_to_plant_green_onions_indoors.pdfIn PDF document text
  • https://s3.amazonaws.com/vaxebisapesi/price_of_mercury_9.9_4_stroke.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/215a2bb5-b563-42ea-926a-f20369f97b5a/kizatugigatofebe.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/4920615f-7cfb-4e81-8cca-a2e0c5742d9b/will_there_be_a_second_nancy_drew_movie.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/b6fd9de4-570e-412e-a00c-bdb0c7daf4fb/vokuzewusarigibidoruxe.pdfIn PDF document text
  • https://fa886832-b9e3-4ce5-a98c-97da2614721f.filesusr.com/ugd/9f8050_1ac2fa1056ac4270a03205c55607efc6.pdf?index=trueIn PDF document text
  • https://945b3f91-9c76-4178-be32-f0dab3cfe2c6.filesusr.com/ugd/8d5d69_b6594abe15b04ad59ca7c1fe789c2704.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/d2518e06-83da-4862-a3e1-ea3b88b35240/72068226472.pdfIn PDF document text
  • https://75e6d08a-b14f-4c2c-bd4e-3e6431d9d11c.filesusr.com/ugd/497a87_b4ae190ed1ff4f21988093abcabe6610.pdf?index=trueIn PDF document text
  • https://uploads.strikinglycdn.com/files/e5aef388-1033-4a28-b2fa-afe7ab79db4e/itil_service_strategy_example.pdfIn PDF document text
  • https://s3.amazonaws.com/xarojapi/what_were_the_three_estates_based_on.pdfIn PDF document text
  • https://79e8b926-cc52-4cef-90ae-68e3990d752e.filesusr.com/ugd/694d5d_5567830f47554874ad16a2eaf43616e6.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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