Malicious PDF — malware analysis report

Heuristics 10

• 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://metiwefipit.weebly.com/uploads/1/3/1/4/131406934/77f34379b73ae97.pdf.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• 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
• 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
• Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
  Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
• 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://xezojetit.ru/strik?utm_term=can+i+transfer+my+whatsapp+chats+from+android+to+iphone PDF link annotation

  • https://cdn-cms.f-static.net/uploads/4408584/normal_6010d4508508c.pdfIn PDF document text
  • https://s3.amazonaws.com/fuvidokibet/pneumonia_guidelines_idsa.pdfIn PDF document text
  • https://metiwefipit.weebly.com/uploads/1/3/1/4/131406934/77f34379b73ae97.pdfIn PDF document text
  • https://s3.amazonaws.com/zomuzigo/48016392527.pdfIn PDF document text
  • https://s3.amazonaws.com/julaxel/what_is_the_return_type_of_constructor_select_one.pdfIn PDF document text
  • https://s3.amazonaws.com/nalifij/69287554814.pdfIn PDF document text
  • https://s3.amazonaws.com/novifamigot/78135486.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4387229/normal_6048a6a511a22.pdfIn PDF document text
  • https://s3.amazonaws.com/lekelepowo/how_to_speed_up_my_apple_tablet.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4417129/normal_5fd3d9e25babb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4384851/normal_6022b216f1b31.pdfIn PDF document text
  • https://virubavu.weebly.com/uploads/1/3/4/7/134755547/kofiwafokoki.pdfIn PDF document text
  • https://zivejopoji.weebly.com/uploads/1/3/4/2/134266783/cdaf218bd8.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4488335/normal_5fcb3baa1737e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4402247/normal_603a9522563b0.pdfIn PDF document text
  • https://s3.amazonaws.com/rujimidujek/bedingte_formatierung_excel_wenn_formel.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4474998/normal_5ffa98e6d82ce.pdfIn PDF document text
  • https://siteketu.weebly.com/uploads/1/3/4/3/134362374/suvuta.pdfIn PDF document text
  • https://s3.amazonaws.com/vavapekadoliti/richard_rodriguez_hunger_of_memory.pdfIn PDF document text
  • https://romovemesokawaj.weebly.com/uploads/1/3/4/4/134479736/potibezufu.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.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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