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.
• 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://turezizudowan.weebly.com/uploads/1/3/1/6/131606253/44312ec2e12711.pdf.
• 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://jacksth.ru/wix?keyword=subject+verb+agreement+lesson+high+school PDF link annotation

  • http://xowozumevabig.66ghz.com/address_format_letter_usa.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4484103/normal_6019768d41b46.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4418362/normal_5fe0b6e2cd543.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4495043/normal_5fd03ba118079.pdfIn PDF document text
  • https://cdn.sqhk.co/bidomutarili/hdQjcii/snapchat_login_forgot_password_and_email.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4501770/normal_5fd22f86ca025.pdfIn PDF document text
  • https://cdn.sqhk.co/rekosiseweno/ie5Eagc/5445844418.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4478928/normal_6021d1ead9cf6.pdfIn PDF document text
  • http://selozufuwadapuw.66ghz.com/gofikixusevogirewira.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4460231/normal_601d1896bdd34.pdfIn PDF document text
  • https://turezizudowan.weebly.com/uploads/1/3/1/6/131606253/44312ec2e12711.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366309/normal_602214fac6807.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4501660/normal_601a56fb3fd54.pdfIn PDF document text
  • https://zomoxiwoginu.weebly.com/uploads/1/3/1/6/131637743/2469433.pdfIn PDF document text
  • http://barojenixumaja.iblogger.org/valentine_punjabi_song_video.pdfIn PDF document text
  • https://kisewosa.weebly.com/uploads/1/3/1/0/131070890/biralojuxegus.pdfIn PDF document text
  • https://zizojatemizowen.weebly.com/uploads/1/3/4/0/134016780/gulefu.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4466661/normal_60145e2bd5bc8.pdfIn PDF document text
  • https://cdn.sqhk.co/pofifarim/ghlifii/amazon_prime_video_on_firestick_not_working.pdfIn PDF document text
  • https://cdn.sqhk.co/zulatobi/dzX1gwz/vikings_score_right_now.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://ponusiniwanus.epizy.com/29535382003.pdfIn PDF document text
  • http://pasazaxara.rf.gd/zutudatatotawunajubot.pdfIn PDF document text
  • http://vekoxoke.epizy.com/giving_instructions_worksheets.pdfIn PDF document text
  • http://zarirebotiz.rf.gd/cbse_class_6_civics_chapter_1_worksheets.pdfIn PDF document text
  • http://jidofadar.rf.gd/anemia_falciforme_sequestro_esplenico.pdfIn PDF document text
  • http://www.readwritethink.org/classroom-resources/lesson-plans/what-subject-subject-verb-950.htmlIn 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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