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
• 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://kelobutino.weebly.com/uploads/1/3/0/9/130969458/7735552.pdf.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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
• 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
• 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://traffset.ru/123?utm_term=romeo+and+juliet+act+3+test+answer+key PDF link annotation

  • https://kelobutino.weebly.com/uploads/1/3/0/9/130969458/7735552.pdfIn PDF document text
  • https://jonoxuxiwef.weebly.com/uploads/1/3/4/3/134314506/vipixaguba_ziwomovinud_venarotumutumaw.pdfIn PDF document text
  • https://povilaromegew.weebly.com/uploads/1/3/4/4/134486615/9477827.pdfIn PDF document text
  • https://xuwojuzo.weebly.com/uploads/1/3/4/4/134471705/be2f1cdbe6b9c.pdfIn PDF document text
  • https://wevinavuligi.weebly.com/uploads/1/3/4/5/134505150/zonaluluk_bomiw.pdfIn PDF document text
  • https://xikosenazegan.weebly.com/uploads/1/3/0/7/130739601/279303.pdfIn PDF document text
  • https://kelobutino.weebIn macro / runtime command snippet
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • http://fedorahosted.org/lohitIn PDF document text
  • https://s3.amazonaws.com/sugosubexez/pulley_lab_answer_key.pdfIn macro / runtime command snippet
  • https://s3.amazonaws.com/kulinisokakewi/wevotusi.pdfIn PDF document text
  • https://s3.amazonaws.com/timafatafej/holmes_tower_fan_manual.pdfIn PDF document text
  • https://s3.amazonaws.com/takeju/dragon_action_figures_ww2.pdfIn PDF document text
  • https://s3.amazonaws.com/rawesaragegugar/1822264877.pdfIn PDF document text
  • https://s3.amazonaws.com/zabevog/bijexawapuzetatadoritu.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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